062 vortec heads max lift. Oct 15, 2021 · Generally .

062 vortec heads max lift " Scoggin Dickey:"When using more than 0. 045" deck clearance. 450” retainer-to-seal clearance. 708" install height. 028” thick compressed. If its a 062 vortec head going Apr 13, 2015 · •Maximum valve lift on Vortec cylinder heads is . 460" by using Comp Cams 981-16 valve springs and the appropriate Comp Cams short valve spring retainers. 02/ 1. Switching to 92 or 93 octane would allow the compression to be in the 10-1 range. HOT ROD Staff Writer May 05, 2003. Both of these heads are 1997 castings, and I'm pretty sure they're off the same engine. 525 lift is about all you'd need. I have not had any issues with my setup but I may just have gotten lucky. 500" I like to see at least a . We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only 0. Also, need to determine max valve lift those heads can handle. Oct 3, 2020 · These flow nearly as good as the 350 vortec heads do, just a little less but still way beyond the stock 307 smogger heads. 485" on head #2. The Vortec does best out of all of them at lifts under . It's going in a 1949 Ford shoebox. you can tell just by looking at them that they are better. In 1997, GM released its Third-Generation small-block engine, the LS1. 040" the only available pistons are the 'rebuilder' pistons that sink the pistons . May 25, 2014 · If you took a set of stock vortec heads and bolted on an engine how much lift before something breaks is a question really everyone wants to know. Stock the Vortec heads only accommodate about . 470” valve lift without binding. Mar 29, 2019 · This would be a '87/later roller block, so I'm looking at Edelbrocks "Rollin' Thunder" camshaft kits. 5-206 . This round will be: 400 . Supposedly the Vortecs are worth 40 hp over the camel hump heads. ) My ported peak intake flow was just a tad lower than yours. 006, 210 @ 0. Their tall valve guides can only handle maximum valve lifts of around 0. Small 390's cfm will be ideal. WillyB - 1975 Coupe 454 - Dougs ceramic headers and side pipes - TKX - e-fan - Ridetech/Sharkbite suspension Head #1: . Modifying Vortec Heads For 0. 450" lift with your vortec heads, we recommend using our high performance Vortec heads with the SDPC valve spring upgrade. I do not recall reading anywhere that someone had issues when switching to Vortec heads and running flat top pistons. Feb 18, 2021 · The only difference between the #062 and #906 Vortec head is in the exhaust seat of the HD/1-ton truck #906 version, as described above. The details on how to increase the retainer-to-seal clearance can be found in the article and comments here: May 12, 2023 · The 906 and 062 Vortec heads are two popular cylinder head options used in small-block Chevy engines. 520 -. 94 1. Aug 27, 1998 · I built a 307 with 062 Vortec heads and a . 500 lift. An optional (mo' money!) heads will garner more lift, but cost low end if you bump that cam past . 550" without needing to machine the heads. Part Number: SUM-151124 Estimated Ship Date: Monday 4/7/2025 Oct 15, 2013 · So, today I measured my 062 vortec heads retainer to seal clearance and I was at . 5 Degree Topped off with a fresh pair of -062 Vortec heads, Edelbrock RPM intake and the new Street Demon 625cc vac secondary carb. 560 lift max (depending on seal thickness, most sets I check have . Feb 11, 2012 · Not sure where you came up with the 0. Stock Vortec heads are limited to 0. Nov 16, 2007 · MAX HP: 422 @ 5700 MAX Torque: 418 @ 5000 I'm over 2/3s there with my parts pile like a GM 4 bolt roller block, 062 vortec heads, forged crank, GM roller lifter setup, fresh rods, plus I think a have a 750 DP, scatter shield, and some other goodies. 050, 131 @ 0. Typically, the max lift of stock Vortec heads is about . Apr 17, 2020 · Vortec cylinder heads have been around for over 20 years and are still a great option for a performance small block build. 5:1 rocker, their tall valve guides can only handle maximum valve lifts of around 0. 4. 490" anyways. You will need a different intake and self aligning rocker arms. Better fit to the 307 because of 1. 1- 64 . 2- 129 . May 1, 2016 · So I'm in the middle of rebuilding a 350 for my car. they aren't scared of the 906s. 506" min / . I understand their limitations in terms of valve lift in stock configuration. Apr 16, 2021 · At the time I rebuilt the entire front end of my car and swapped the cam to a 204/214 cam. Jan 5, 2012 · Head Gaskets For Vortec Heads 10105117 GM Composition Head Gasket, 0. Oct 8, 2004 · Here’s what happened when I ran a Competition Cams Comp Magnum 270H (. 462" lift. You can also use a set of Apr 6, 2018 · Jeff Smith: We wrote about Vortec heads in 2016, and that article spawned this question. Not worth it either way. I also did not port mine to the max for the same reason. 450-. It's very easy to mess up the low lift flow on these heads,which is 1 of the Vortecs best assets & on a street engine is a big No-No,especially with stock valves. The S/R Heads and the S/R Torquers are exactly the same casting. 480". Knowing what I know now, I'd probably go with AFR Enforcers. The improved chambers in the heads plus the higher compression will really wake it up. 468". Cam is Comp Xtreme 4x4, 260 @ 0. 480 which is out of reach of the unmachined vortec heads. So being a Vortec newbie I have a couple of questions: 1) What head gaskets should I use? Dec 18, 2010 · Any event, Pace Pontiac has brand new, "Vortec" heads, that are drilled "old style", and have the spring seats machine down so a . Jan 5, 2006 · The heads I am talking about are the 96-98 vortec heads from a 350. 02 1. And production exh manifold. I have a set of Vortec heads from a 1999 Tahoe sitting on the bench. Jump to Latest 10. There have been many tech articles written about them over the years, so I won’t get to far into the weeds about the improved combustion chamber and port designs. The answer is the retainer to guide is . Apr 1, 2015 · The guides of this head are pretty high when the stem seal is fitted this restricts max lift to . 050 safety margin. 420-. (The Canadian casting plant that used to do the vortec heads now does the LS vette heads and the new 2010 Camaro V6 motors heads. 400 lift from what I have read. 062 heads are coming off of production engines. 60 valves TRW flat top pistons w/ 4 valve releases 10. If you want a big port head, start with a big port head. after . . 480 lift that is still below the max lift of where those heads will flow. when the call for vortec heads, they buy the vortec Aug 7, 2014 · Unless you are highly skilled experienced porter. 12557236 GM Composition Head Gasket, 0. Tons of power with a 1. It's A Spring Thing. 470-inch. 640" lift cam. I did not measure swirl when flow testing. So, I would still have to get the guides machined and by that time I could use the 1. 420 inch. 535" min / . 5:1 compression ratio with poor flowing heads, intake and exhaust. Holley 4412 carb and 1. 470" w/o the stock retainer hitting the valve stem seal, unless the guide boss is shortened or the retainers changed or the stock retainers modified, possibly w/a different seal as well. 460" lift and GM states . 800285# @ 1. Yes the L98 aluminum heads fit and do need full on porting to perform. 420 inches because these heads are designed to work with a 1. Oct 11, 2013 · Hi, currently building a 406 sbc with 062 vortec heads. 470 lift cams. Jul 15, 2009 · Vortech is a company that makes radial superchargers- mid 90's GM trucks came with Vortec heads. 522" to see the max lift for a cam that I can run which would put me right at . 040" The better. Ports measure smaller too. Don't I need to subtract . 450,you MUST verify the actual clearance of your set of heads. May 4, 2021 · Given the basic limitations of the Vortec heads, you'd need to verify retainer-to-seal clearance, and the max lift on the valve springs. I have a set of camel hump heads with under cover porting from brezezinski and would have to run edelbrock torker ll intake #5001. 02" valve will fit but only to a limited . I have read they are only good to . 062 Vortec Heads: A Head-To-Head Mar 24, 2014 · I am contemplating a head upgrade on my 350ci motor. Jun 5, 2014 · So in my opinion my 062 heads I would not have an issue running up to . I'm taking them to a machine shop to get them cleaned up a little basically but they have stock springs and everything. This cam has a . They won't allow a valve lift of more than about 0. Jul 28, 2016 · Also @. Spring Specs:100# @1. Features include fast burn combustion chambers, and a high-velocity port design. 525-Inch Valve Lift. 425- to maybe 0. Just wondering if that will suffice for now. The 062 and 906 heads, as produced by Chevrolet, are limited to about 0. 02/1. Jun 10, 2022 · If you already have Vortec heads, clean them up, have them magnafluxed, port them, and put them on with LS2 valvesprings and Comp Cams 787-16 retainers and you'll clear . May 17, 2008 · IMO if your building a street machine that is a strong soild engine and for fun and maybe a couple 1/4 or 1/8mi runs to see what ya got, no need to be afraid of the 906s. 050" clearance so I would say a . 050, . The stock rockers stop at . 430" valve lift. Beginning with the intake port, which is 170cc with a cast-in 'ski jump' on the port roof which is there to increase port flow velocity, port flow was designed to be high in the . 450 lift cam would be it. 550 lift, so verify your clearance issues before installing a larger cam, STOCK rods and rod bolts generally cause clearance problems unless you use a small base circle cam Aug 17, 2017 · Like it's been said already, without machining their max lift is probably around . 460-inch to . that being said, if they are in good shape and ready to run get the vortecs. Just reciently I found a great deal on a new set of World heads #4267 S/R Torquer 23 degree 170 76cc chamber 2. I have already clearanced everything and assembled the engine. You can't use the same techniques on these heads Jul 25, 2012 · Re: 062 Mexico Vortec flow numbers Post by zums » Fri Jul 27, 2012 12:25 am you can still make them pretty good just get ready for alot of port work, the chamber is still good and the vj is the same these #s are from a 2005 casting with a better vj so subtract a few cfm for stock . 420. If you still have the stock L48 cam you can use the standard heads. 6's for the same price as the 1. I believe at 1. 474" lift with 1. 470" lift) on a set of stock Vortec heads. 050”: 212 deg. 3- 177 . 535/. Jan 23, 2016 · I'm looking for advice on which hydraulic, flat tappet camshaft for my engine build. You can increase the maximum valve lift to . Stick with the 1. My personal preference is to tool mill the guide but inflation and import taxes have hit these tools hard, just buying the tools these days is about the same as having the shop do the job Feb 5, 2006 · Stock vortec heads can be drilled and tapped for standard intake manifold mounting. 490-up. Nov 3, 2014 · Allowing for . I was told that the LS6 springs will rub on some part of the valvetrain. 43 inch sometimes to as much as . If you don't already have Vortec heads, there are better heads out there. I am leaning toward Vortec heads. 456" for head #1 , and . Sep 27, 2017 · The stock Vortec iron head will not tolerate more than 0. 480 max lift is a bullshit myth, designed to ruin my weekend and cost me more money. 470 lift, 224 duration, full length headers, running a performer intake which id still run for the vortec style heads, customized 650 double pumper. 300"-. The original answer was related to modifying the heads to accept more valve lift. 45 inch, fitting better springs like beehives and a little mild pocket porting; these heads will easily support a 6000-6200 RPM from 350ish size engine. The common solution to this issue is to machine the valve guides, and spring seats to allow upgraded springs and more clearance for more lift. Feb 7, 2006 · From what I read the Vortec heads will allow a half point higher in compression without pinging. 480" lift valve be sure to check first for coil bind as well as keeper to guide Jun 24, 2017 · Vortec heads will accept up to . Jan 26, 2004 · I've been told that the max lift out of a Vortec head is . 509" max Head #2: . PART NUMBER OPTION Spark Plugs For Vortec Heads 5613611 R44LTS, set of 8 5614210 MR43LTS, set of 8 25164641 #3, Rapidfire style, set of 8 Jan 6, 2013 · GM Performance Vortec heads GM Performance Vortec heads, #062 castings . They're factory by the way. The Vortec cylin This videos goes over the big problems of the Chevy Vortec cylinder heads. 5's would be ~. 84" valve) yes you want to deshroud that Chamber some. This range is due to production line machining and casting variance. 42 or so, (I've read varying specs about that) but the stronger LS1 springs are supposed to allow more lift because they keep the valve float down. 568" on another. Dec 27, 2017 · Also the reason these were so bad was they used piston and head combo that produced 8. Jan 23, 2012 · Ok I've got a set of 062 vortec heads and since I'm putting a carb on my truck, I'm wondering what the cam size limit is on these vortec heads. For a the 062 type production Vortec head, a collision between the retainer and the guide occurs around . 520-550 clearance, springs are good to . I have about . Another dual 4 will be better low/mid range (street) performer. Notice the 182's do much better at mid lift than the S/R's. 050 inch is considered sufficient at max lift. Jul 27, 2006 · Since even mild performance cams stretch the valve-lift envelope into the 0. 5 out of 5 stars. (I asked a W/Products tech guy on this) Apr 29, 2015 · Cam Lift: . the . I have built several motors, but this will be my first with Vortec heads. ) moderate "Pocket porting" adds little or nothing,but looks pretty. They don't like a lot of valve spring pressure with the press in rocker studs. 558" lift . 450 inch lift max for the vortec heads. The most common way around this is to tool the guide lower to gain sufficient clearance. 480 lift or with the optional better springs installed that some places supply at extra cost, on some heads to a . its got 4 valve relief flat tops, comp 270 cam . Jan 17, 2009 · I have a pair of the 062 casting Vortec heads. I have "heard" that the LS6 springs wont allow as much lift on a Vortec 305/350 heads as the Comp Cams 915/918 springs. They are cut down on my Vortecs and I'm running . This is actually my second 400 sbc for the car, the first round was 400 with Vortec heads, Comp 280H cam, 9. it's very hard to improve on the Vortec's intake side & other than minor cleanup & gasket matching,it should be left pretty much alone. Jul 4, 2017 · I have factory L31 Vortec heads (062) with factory self aligning rail type rockers and I am about to do a cam swap with increased lift. Link to GM Performance Valve Springs:http May 5, 2003 · Modifying Vortec Heads For 0. Subtract the standard 0. 490" lift specially with stock rockers since I figure you wouldn't even get your full lift of . Because this head was originally designed as a production piece, the stock Vortec’s max valve lift potential is definitely limited. However, 062 has slightly larger valves than 906 Vortec Heads. This will allow for a lift of . 060 over. Remember a oem 305 head eg 4416 has a tighter in/ex valve spacing Than old sbc heads. 690" so subtract . Apr 15, 2013 · Stock Vortec's will give 30HP over the old heads. 060" for a safety margin from . 8:1 compression Hoping it will run well. 50 plus freight from Scoggin-Dickey Chevrolet. 470 lift, the maximum that the Vortec heads can take. 800" install height LS3 springs are good to Aug 1, 2012 · The other problem where lift is concerned is the clearance between the bottom of the retainer and the top of the valve guide, the space occupied by the seal notwithstanding. 510 to . I will be milling the heads to assure the surface is true. 480 I think, correct me if I'm wrong). Drop in (this means no machining) beehive spring kit for GM Vortec heads 906/062. Nov 15, 2006 · Singh's Grooves in Ported & Milled vortec heads on stock 350 I am porting a set of 062 Vortec heads for an otherwise stock (including fuel injection) 97’ 350 in a 4 wheel drive pick-up. Mar 16, 2010 · New L31 062 Vortec heads with seats machined for double springs and clearanced for . If there take offs the valve cover and rockers will be included. 475 max lift. Effectively duplicating a GM 350/330hp HO crate engine. I know some of the $100 to $250 dollar parts eat a guy up fast. 030" overbore recently for a 46 Chevy pickup. So saying the cam is "to big" is a misconception. Stock As cast flow is modest. Let's discuss how you can run more lift without machine work. 030" clearance between valve guide and the valve spring retainer. I have an Elderbrock performer which I plan on selling and getting the same one but Vortec version. 500" valve lift area to make power with relatively low-lift truck camshafts. 02" valve w/high lift yes. 500 lift cam . 65@125mph 406 with home ported Dart 215 heads. Apr 1, 2006 · Here's all the stock iron head intake flow data I have so far. 520" allowed with this head design. I'll buy the comp cams cutter, and arbor, and just cut the guides down, buy a regular style spring. 481" Vortec limit. 480-inch. The valve guides have not been machined down. Allsaid and done the bigger the overbore eg+. 560 , but you need to check seal to retainer clearance !), good for flat tappet cams or mild hyd rollers. 6 heads gained flow. AGAIN. 050" safety margin, and using the minimum clearance for each head, max safe valve lift on the two heads would be . 1094 Fel-Pro Head Gasket, 0. "The limitation is the clearance between the bottom of the retainer and the top of the valve-guide seal. 94" valve to A oem 305 head, (1. •Vortec heads require a Vortec style 8-bolt intake. 6 intake exhaust and a performer RPM intake and now not sure which way to go. The stock self-aligning rockers have a ratio of 1. 4- 207 . 062 Vortec Heads Comp Cams May 9, 2005 · The LT1 prospered from 1992 to 1996 in various vehicles, but its days were numbered. Vortec 062's 406 w/hyd. cam and stock rocker arms. 5 RR. A complete set of iron Vortecs (GMPP PN 12558060) will cost you just $477. 5 76cc heads, except at . The complete L31 engines part# 12530282 and 12530283 are both Vortec engines found in trucks. 480 inch the engine should easily make 425 hp or more. Crane full roller rockers , and Comp . Max. 470 inch. 475" the cam I went with has a max lift of . 00 Condition: Excellent Location (City, State, Country): pedro, Ohio Jun 20, 2019 · What I'm wondering is if putting roller rockers with a 1. 020 further in the hole giving you around . there is more to them than just airflow numbers- the chambers are decades ahead of the old school camel back heads. Jan 5, 2005 · I am going to get this vortec and intake setup from Skoggin-Dickey - it includes rocker arms, gaskets and new bolts. I pulled the cam, and tried to run the casting numbers off of it with no luck. 550 lift Crower cam 234/244 @ . Max engine speed is 5,500 rpm. 460-inch lift. 040" over Vortec heads cut guides and springs good to . 375 restrictor plate. I had heard conflicting reports of how much lift a stock Vortec head would take, and was ignorant of how to check it myself. A buddy of mine said the cam I ordered isn't enough lift, but A I don't need a crazy amount of power, and B the vortec heads don't flow any better over . 84" intake valve size, and the small 58cc chamber to help boost your compression even more on the small bore engine than the 64cc of the 350 L31 vortecs would. Apr 15, 2011 · The Mexico-cast vortec heads are reported -10cfm stock. 02" valve strikes the cylinder wall. 480 & still maintain a . 030” retainer-to-seal. Even with a 0. I have a set of brand new LS3 beehive springs and retainers sitting around. I am only running the 305 heads for break in until I can afford to have my Vortec 062 heads worked at the shop. I'm wondering how much lift I could run with these springs on the vortecs at 1. 460" which coincidently is the max lift on stock Vortec's. my buddie is in the office of a salvage yard, and the circle burners (stock car boys, mostly dirt, some asphalt) buy a lot of stuff from him. Your charts are near identical (ported) and spot on (stock) to what I got doing mine (The good 062 castings. 015” thick compressed. Sadly, they have their web-site so jacked up right now that all I can find is a link to the bare head. Valve Lift: 0. cam and stock rocker arms will be made from as if you have a cam that max lift Jan 13, 2025 · But the advantage to running the Vortec heads is that a 355ci small block with a mild cam of around 215 to 218 degrees at 0. 475 inch of valve lift, but this is a very tight number. Jan 18, 2016 · But 2. 307 were rated at 250 hp with 76 cc chamber heads in stock form from GM, with that being said and all the articles and info out there on 062 Vortec heads stating that they give stock engines Oct 13, 2020 · Engine must be under 10:1 compression, max . 420-inch lift cam. You have to fully port the vortec heads to get a real gain. 062 Vortec heads (little bit of port work) with Straub Mar 19, 2015 · . Or I could run Jun 14, 2019 · 10. The #062 has a 3-angle grind on a standard induction-hardened seat, as does the non-HD #906 head. 94 valves and cut the bosses. I have had the valve guides machined for clearance but my concern is at what lift do these factory vortec non-long slot rockers bind up and break the studs. Jul 21, 2017 · If you must keep that cam, no way would I even consider standard GM Vortec heads (casting nos. 050" so your safe at . 440-inch lift. GM Performance Parts literature claims that the stock head is limited to no more than 0. 080 clearance on my springs now at full lift. 420” which allows 0. Sep 20, 2015 · The Vortec head valve stem bosses have to be cut to allow lift over . 550” Vortecs. If you have a dome, you'll need to grind the "vane" in the combustion chamber for clearance. exactly 100 miles Asking Price: $500. Intake / 222 deg. And any gm head except bowtie. " Dec 9, 2005 · As many know, Chevy Vortec heads make great power out-of-the box but can’t take more than about . That is significantly higher than stock (which most Mar 24, 2017 · Because these heads are meant to work with a 1. I'd just leave it in there, however I am swapping to a set of vortec l31 062 heads which I cannot have more than a certain amount of lift (. 430" valve lift and still maintain . 520. 435” Intake / . If you are refering to adding a larger 1. It is highly recommended to check for clearance on anything over . Making the port aperature on the cylinder head wide enough and making the heighth on the intake taller will work well as long as Mar 16, 2020 · Max lift for pressed in studs. Issue is, the large cam usually has high lift and those heads may not handle the high lift. 47 inch of lift at the valve. Nov 9, 2009 · In addition, the 2002-2004 LS6 springs are also a behive spring deisgn and will work on the GEN 1-E Vortec head. ? Dec 4, 2021 · aj, I didnt want to answer until I got to the shop this morning. Sep 1, 2002 · Why'd we choose the Vortec heads? Cost is the reason. Oct 4, 2020 · Vortec heads are limited to how much lift you can run. 6-210 stall with alot of How to check and install LS beehive valve springs on Vortec heads + check for max lift!Ls6 springs work great for mild roller cams!An easy at home way to che The factory Vortec heads have a light single-wire valvespring and a damper that puts between 70 and 80 pounds of load on the seat, according to the factory Vortec heads. Flat top pistons 350 max . 060" worth of clearence on a soft part, I have had no issues splitting seal running up on them or close to them. 5's and get more power. 430" valve lift the 2. 460 to 0. 050 duration and lift of around 0. 24 PMI chrome moly retainersPMI beehive Feb 26, 2017 · They advertise a max lift of . At +/- . 02" valve. 530 lift. Dec 16, 2024 · Not all center bolt heads are true vortec heads. I've provided the description for their 22096 kit - they also have a 22046 and 22076 with progressively higher specs but those would exceed the max lift on my Vortec heads which were reworked to allow up to . Chevrolet Performance cast iron Vortec cylinder heads will fit 1958 and later small block Chevy engines, and offer a 20 to 40 hp increase over earlier cast iron small block heads. Max Lift . Exhaust Lobe Separation: 112. Only the valve size is changed on them. 420" lift at the valve. The 12530283 is the heavy duty version with 4 bolt main and different head configuration but both use the same cam. Jan 15, 2008 · The lift w/ the 1. 470/. 10 sec. 72-1. If you are boring it out to . I thought I might leave the cam in since it is no doubt mild and will be below the . 500-inch range, the Vortec heads require modifications to the valveguide to allow more lift and new springs. 2:1 compression but it wiped a lobe. 6:1 ratio would create too much lift. 550 lift springs . 480 is max,provided seals are correctly installed,BUT,this MUST be verified with each set. They should handle up to . Oct 15, 2021 · Generally . 906 and 062). 480" inch of valve lift unless you cut down the valve guides on the heads, and open the hole in the push rod guide slots to bring you to the maximum valve lift of 0. 522" on one valve and I got . 545" max Allowing for . Hippie is correct, there will be a port mis-match, but the mismatch is the proper type where the intake aperature on the manifold is shorter than then one on the cylinder head. 530. MAY FIT OTHER SBC HEADS, . So- if you go to GM and order a service replacement Vortec head- if you get the current production- I believe it will be a 906, w/o inserts. I want to run a Comp Cams Magnum 270H cam with them. These are actual tested numbers not magazine or vendor numbers. You'll need two sets of rotator-eliminator shims. Joe Vortec Head Kit May 29, 2007 · Some are not GM specs, but aftermarket engines describing themselves as a “vortec” engine because they are using “vortec” heads. Mar 20, 2010 · I've also heard the hardened insert seats were discontinued and all "service replacement" heads are based on the 906 casting w/o inserts. 550 lift cam can be used. Jan 19, 2015 · C3 Tech/Performance - Max lift? - I have a Chevy 350 motor bored . I'm going for a Crane 268 cam and high lift heads. The beauty of Vortecs is high flow at low-mid lift and Oct 7, 2008 · most stock vortec heads are restricted to either a . I'd love to see the two compared, so as to see at what point in lift, the 2. 050-inch clearance, this leaves only enough room for a 0. Package drops in Vortecs (062/906 catings) and works on GEN 1 SBC Sep 23, 2009 · I will keep everybody updated. I chose the former. If the heads aren't ported, I'm thinking something like . and instructions . Max rpm 7500* (with hydraulic roller) Dyno Proven. 30 over (355) w/factory crank 64cc double hump cast heads cut for 2. 510 lift 9. Not even W/Products seems to have numbers on their 1. Only the 96-2001 heads with the casting number 906 or 062 are true vortec heads. 051” thick compressed. Obviously you need some tools to do this as set of snap gauges and a micrometer should suffice. :mad3 milling o62 vortec heads for screw in studs guide plates and double springs at home with a drill press Feb 28, 2015 · Point taken. 450"-0. I don't feel the need to give . 698-1. 52:1. total 0. Due to manufacturing tolerances,total retainer to seal clearance on Vortecs is in the range of . 7 Vortec. 050" your good for. You will get pretty high compression with 64 cc heads and a 400 CID block, but you can help reduce dynamic compression with a large cam. On the ends will be a half hump or a saw tooth pattern and the casting are easy to fine. 488/. 94" valve max, without the hassle. Therefore, I need to use a different spring or have the heads machined. Jan 3, 2024 · A 2. Oct 10, 2012 · The vortec heads come from the 1999(ish) years, and I just Googled 1999 Chevy Camaro compression ratio, and it says 10:1. Apr 28, 2011 · Then with some mild mods to the head such as machining the top of the guides for lift clearance beyond . 5:1 rocker. 608" lift so take off . Nov 13, 2022 · I have a Performer RPM intake, shorty SS 2 1/2" headers, a 600 and a 650 Edelbrock carbs, a new set of 062 iron heads and a good bottom end 97 5. Nov 8, 2005 · im wondering what i kind of gains and compression i could get out of running a set of 350 vortec heads on my sbc400. 020 and 0. Jun 25, 2017 · As mentioned your Vortec heads are restricted to 0. 1 day ago · Summit Racing™ Vortec Cylinder Heads SUM-151124 SUM-151124. 470 to . 450 and you'll need a different intake manifold. These are 062 Vortec heads that I In this video Robert shows you how he and Joe rebuilt a set of 906 Small Block Chevy Vortec Cylinder Heads!Remember to LIKE and SUBSCRIBE!Follow us on social Apr 28, 2015 · Looking for a recommendation for a good set of valve springs that won't require any machining to Vortec heads. It's not a factory cam. Mar 5, 1999 · What makes Vortec heads any different from other GM steel heads? Pretty much everything. While 906 and 062 Vortec Heads share some similarities, there are also some notable differences. 470. The L-29 heads use valve rotators on both intake and exhaust. May 5, 2020 · These are 062 Vortec heads that I use on my 1990 Third Gen Camaro. I'm taking them to the shop to get magnfluxed, decreased, and vacumn tested. Jun 25, 2017 · Vortec heads come w/self aligning rocker arms. The most lift you can have before the valve spring retainer hits the top of the valve seal is . I used a 2. Porting Vortec heads is tricky, it's easy to screw-up low-lift flow trying to gain peak flow. 550 lift with no problems. the current heads are 882 heads Jul 13, 2014 · The vortec heads I bought from summit at the time of purchase said they had a max lift of . Nov 5, 2016 · Try to CC the heads. I'm 21 now and got a pair of vortec heads (062) out of a 97 1500 at the yard. 460 to . Comp Cams 986-16 dual springs Comp Cams 743-16 retainers For a cam, right now I'm looking at the Lunati Voodoo 60103 hyd tappet cam or the Comp cams EX274H cam. I saw the Summit Vortec heads (part# SUM-151124) show a max lift of . Sep 6, 2009 · The L-29 Vortec heads drop right onto a flat-top-piston engine. Here is a quick comparison chart highlighting the significant specifications of 906 and … 906 Vs. Chevrolet Performance Vortec Cylinder Heads. Bored and stroked to 383. I'm using Vortec heads (062 casting) on a small block chevy 383 stroker mild street. 450-inch lift. 470 but I'm going to be putting on beehive springs to replace the stock springs. 1 compression I plan on upgrading and getting the heads machined for larger springs but my question is without measuring what Jan 15, 2009 · I have some 062 casting vortec heads to install on it. 050" or . 460” exhaust Cam Duration @ . ccxsqk xwkw zhiuqt ribegi enx hzism uyvxdi ghpseb qchy hbnwvkg lickm ytaqtm zrzump oeeqvf giqom