18 cylinder heads. CALL SHA NON AT 507 445 3235 WITH ANY QUESTIONS.

18 cylinder heads 2L Diesel AT 4WD. Warranty Ross SBC 18 Degree Pistons. 00 "Close (esc)" Quick shop. Top Rated Seller Top Rated Seller cajunzc4 (5,156) 99. Why buy a set of heads with the wrong parts when we can build you a custom ported set of heads complete, ready to bolt on with the right parts. These parts house the valves and spark plugs, ensuring optimal airflow and efficient engine performance. These 243 Cylinder heads are High-Performance replacement to GM 243 heads. CA$5,900. 550 diameter spring is being used we offer a 1. Max valve size is 2. October 18, 2017. 00. We offer discounted prices, personalized customer service, technical help if you need it and swift shipping on the entire Ross Racing Pistons product line. 0mm ring package Premium 8620 . 400 intake valves and 1. CNC machined from the renowned strength of a Brodix casting blank, the port design is optimised for flow and velocity. 00 CC Port, 47. OE# 1329976, 2237263, 3250386, 1769917, 2239250, 2778240, 3123564, 3980236. SKU. 830 exhaust valves. Shop. Dart Heads’ extensive selection of high-performance cylinder heads is meticulously engineered to maximize airflow in and out of your Big Block Chevy, Small Block Chevy, Small Block Ford, or GM LS engine. Details. Completely compatible with all existing 20-degree Brodix components Cylinder heads for all makes and models are available online at Allied Motor Parts. 85 ex GST: $699. 150 in. Handling Scratches, SINGLE HEAD! GM Performance 10134363 Bowtie High Port 18* Aluminum Cylinder Head, Unfinished | eBay AFR 457cc Magnum BBC 18 Degree Cylinder Heads. 927 5115 Series steel straight wall), oil ring support rails ( with all sets except part Dart 18° Oval 330cc CNC BBC Aluminum Cylinder Head Part# 16876040 - 16877146 Material: 355-T61 alum alloy Comb Chambers: 98cc Intake Valve Dia: 2. 7%. $1,695 00 $1,695. AFR Cylinder Head, 24°BBC 300cc Oval Port Fully CNC ported, 112cc chambers, Competition Package, assembled w/ 1. Free Shipping within Australia for Orders over $50 All you need to apply is to have a debit or credit card, to be over 18 years of age, and to be a resident of country offering Afterpay 13-18 degree wedge sb2. This head is so advanced compared Dart Race Series 18 Degree Cylinder Heads for Small Block Chevy. BES / BBF C&C PRO The reason most 18* cylinder heads give up some low end torque compared to conventional 23* heads is due to the fact that 18* heads are intended for racing use and almost always feature larger intake port size (volume and cross-section) than 23* heads intended for street/hiperformance use. 3 V6 Aluminum Cylinder Head NASCAR 12480009 PAIR Chevrolet Bowtie 18 Degree 4. The BR X series features a 20-degree rolled valve angle and flows an efficient 495 cfm that is suitable for both street and strip applications. In fact, the heads deliver higher airflow numbers than fully prepped 23 degree Trick Flow® Ultra 18® cylinder heads are available fully assembled or as bare castings and sold individually. This head has special valve centerlines and dowel location Matt goes over this head and shows in detail why the MBE Cylinder Heads are better then the competition . Features 275cc intake runner, with 2. In stock. We Are Offering 6 DS 18 DAIHATSU CYLINDER HEAD With All Type Of Technical Inspection, Also We Can Offer All Major Spare Parts For DAIHATSU 6 DS 18 Like Cylinder Head • Connecting Rod • Cylinder Liner •Bed Plate • Piston • Caterpillar Engine C-18 Cylinder Head. Large valves, better shaped/ deeper chamber, raised/ larger ports, proper short turn radius, added 3. The Brodix Small Block Chevy -18X Series Aluminum Cylinder Heads offer the best of both worlds, 18-degree horsepower without using expensive shaft rockers or offset lifters. They're great for high performance needs. 2L FWD High Output 114kw. $18. We sell brand new Caterpillar C-18 cylinder heads. MSRP: $ 3,447. If you want ported 18's, that is another $2000. head, but uses a raised port location like a standard 18 deg. with the valves rolled CYLINDER HEADS . 67 Only blockheads drive with outdated cylinder heads! Buy your perfect car engine cylinder head replacement from Proflow's online store. You can get smaller port 18* heads, but they Cast | 18 Degree; Cast | Nitrous Specials; Billet Symmetrical-Port; Small Block Ford. 3 V6 Aluminum Cylinder Head The Most Powerful Conventional Cylinder Head! Brodix BR X Series Cast Cylinder Heads offer powerful horsepower right out-of-the-box. These heads have an 18 degree valve angle that will work well on your dirt late model or high performance drag racing New BRODIX BP BR X 18™ FAQ Friday: What spark plugs should you use in your new BRODIX® cylinder heads? BRODIX Cylinder Heads. 182 Products Found All you need to apply is to have a debit or credit card, to be over 18 years of age, and to be a resident of country Key Features at a Glance for the Stage II Ford 6. No Interest if paid in full in 6 mo on $149+ with PayPal Credit * Condition: Cylinder Heads & Parts for K20, Car & Truck Cylinder Heads, Cylinder Heads & Parts for Trick Flow Ultra 18® 250 cylinder heads with 18 degree runners make serious horsepower—power ideal for drag and high-rpm circle track racing. Bodix 18's are cheaper, but are a far more inferior head and more close to a 23 degree head then a real 18 degree head. 550 offset which is typically used for 3/8 diameter pushrods with a on center lifter with minor clearancing. Stage II Ford Powerstroke 6. 040 head gasket @ 9. or Best Offer +C $205. Buy our remanufactured cylinder head and get back on the road quickly. Order today to enjoy all the performance benefits a PN: TEA-18SBC275-custom Gen1 SBC Bracket/Drag/Circle Track Racing Head Our base offerring in an 18 Degree style head. 0mm ring package Premium 8620 Cylinder Head, Race Series 18 Degree, Aluminum, Bare, 67cc Chamber, 237cc Intake Runner,Chevy,327/ 350/ 400,Ea Improve performance over standard 23 degree cylinder heads. 020"Exh Valve Dia. 00 SKU: FE-3027. New BRODIX® HD™ Designed to work with most aftermarket 18° cylinder heads Top ring down dimension: . Top Rated Dart 12. don’t be fooled by just peak flow numbers. AFR 457cc Magnum BBC 18 degree cylinder heads were built specifically for high horsepower race applications. Top. Right out Cylinder Heads. 580in. 3 V6 Aluminum Cylinder Head NASCAR 12480009. The intake port is raised . Raised ports along with valve locations that have been rotated in the combustion chamber allow for very large 2. 000 Deck Premium ring package . Looking at a 434 small block chev and wanting around the 750 Aluminum Cylinder Heads GM SBC 10134363 18 Deg IHRA NHRA WISSOTA IMCA UMP CARS. The professionals at BRODIX have contoured each intake port, exhaust port, and combustion chamber to flow its Dart Heads’ extensive selection of high-performance cylinder heads is meticulously engineered to maximize airflow in and out of your Big Block Chevy, Small Block Chevy, Small Block Ford, or GM LS engine. Has shown excellent results on large cube small blocks and works well with Nitrous oxide. Exhaust valve choices are Brand New Cylinder Heads – No remanufactured parts, 18mm Dowel Pin Compatibility – Designed to fit Ford 6. 500 with the valves rolled to 18 degree resulting in unparelled under the curve flow numbers. 30 shipping. 500 intake and 1. With the Nxtgen 13° BP13 CNC Using advanced manufacturing methods, developed by over 50 years of operation, HM GEM has been able to provide Australia with exchange cylinder heads to supply a large array of vehicles. Call to Order. 9K views · August 23. These heads were based on oem design that was altered for racing. Cylinder Head – Complete; Cylinder Head – Insert only; Exhaust. Cylinder heads are crucial components in Briggs & Stratton engines, playing a vital role in the combustion process. Sale! Race Series Chevrolet Small Block Head – 268. 64 Your Price: $ 4,643. 650 long rocker set to accommodate this. New BRODIX® HD™ Aluminum Cylinder Heads GM SBC 10134363 18 Deg IHRA NHRA WISSOTA IMCA UMP CARS. 50 for additional information. $1,495. 2 cylinder head kits _gm sb2. Engine Rebuilding Services. Our cylinder head lineup includes options designed for high-performance street cars and all-out race cars. Valve Spring Kit. 18° Magnum. We are a distributor of wide range of performance Trick Flow & Brodix Cylinder Heads with delivery in Australia & NZ. BES / TFS SBC 18° Heads: Price: This is a great head for both drag racing and circle track. 250 Head Bolts/studs: Bolts – ARP# 135-3603 Studs – ARP# 235-4103 Manifold: Dart Part Type: Cylinder Heads Product Line: Trick Flow® Ultra 18® 250 Cylinder Heads for Small Block Chevrolet Cylinder Head Style: Bare Cylinder Head Material: Aluminum Intake Valve Diameter (in): 2. $ 508. 5/15/16/18 Deg Aluminum Race Series Small Block Chevy Cylinder Heads-Add to cart MSRP: $ 4,745. John proved this point on the dyno by losing 20HP/20 lb-ft of TQ. Skip to main content. 18 ex GST; Login; My Account; ERM Portal; Resellers; Contact; Installation Instructions Cylinder Heads for sale in RaceMAX Direct. 043 x . 500 in. The design provides unparalleled stiffness and valve control for improved The revolutionary PB 1803 cylinder heads from BRODIX feature oval intake ports, CNC combustion chambers, and use all standard components for the 18° Pro Stock head excluding The BRODIX 18 C cylinder head has an 18° valve angle that works well on dirt late model or serious drag racing applications. 61. 050 piston to head clearance (deck and gasket combined); FORCED INDUCTION No; NITROUS Yes up to 250hp shot; Ring Grooves 1/16 1/16 3/16; WHAT’S INCLUDED 8 forged pistons, 8 Wrist Pins ( . The store will not work correctly in the case when cookies are disabled. 205"-. Brand New Cylinder Head For Caterpillar C18 Engine. 18″ Aluminum Racing Cylinder Head 24592580 Chevrolet Cylinder Head Semi-Finished. 0 Cylinder Head: Brand New Cylinder Heads – No remanufactured parts, 18mm Dowel Pin Compatibility – Designed to fit Ford 6. Available 42 cc chamber sizes. These heads have an 18 degree valve angle that will work well on your dirt late model or high performance drag racing application. Cylinder Head Specifics; At just 21 years old and with a 6-year history of porting cylinder heads, Carl Foltz’s focus was to develop Pro Find many great new & used options and get the best deals for Kohler Cv18s Command 18hp Engine Cylinder Heads Cv-18 at the best online prices at eBay! Free shipping for many products! AFR 457cc Magnum BBC 18 Degree Cylinder Heads. Enough wall thickness for CNC machining. Cylinder Head - Ford Transit 2. The reason most 18* cylinder heads give up some low end torque compared to conventional 23* heads is due to the fact that 18* heads are intended for racing use and almost always feature larger intake port size (volume and cross-section) than 23* heads intended for street/hiperformance use. The intake ports are raised . This head offers a dramatic horsepower increase over the Our base offerring in an 18 Degree style head. 18 degree valve angle. Get the Best Performance with Edelbrock Pro Port Raw Victor 18° Cylinder Head for Small Block Chevy 775069 parts at JEGS. 330" Ratios figured for . Canada Wide Shipping. The PB 1800 and PB 1801 were the original designs in this legendary series. Use part number 2055 Brodix Cylinder Heads 18 Degree Cylinder Heads. Cylinder Heads & Components Feuling-ARP Hi-Performance Cylinder Stud Kit. A standard 18 degree head uses a 5 degree intake face angle. 800 exhaust valves. any Questions Call Matt (704) 856-0200 Flathead cylinder head; Overhead-valve cylinder head; Overhead camshaft cylinder head; Now we will study one by one. 00 SKU: AV-VSK8000TGHP. The question was, what were the Nascar 18 degree 18° Magnum. 6. Dart Race Series 18 degree cylinder heads (for small block Chevy) delivers features that put you ahead of the competition! Dart refined the rolled valve angle design to give you more versatility, more performance, more reliability and higher quality. This head has special valve centerlines and dowel location And maybe best of all, MBE’s 18 degree Max Pulling cylinder head looks exactly like a conventional style head when it is on an engine - so nobody will know about your secret Find Brodix Cylinder Heads 18 C Series Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! If you're serious about quality and workmanship, top your small block Chevy with 18 C Series cylinder heads from Brodix. The Chevrolet Performance Aluminum Racing Cylinder Heads are part of an extensive family of high Having the right cylinder head combinations is crucial on many levels - Making the most of your engine's potential power, Ensuring the torque is where it needs to be, Allowing significant increase in flow throughout your cylinders heads Engine Pro Racing Cylinder Heads 69CC 255CC Intake Runner 11 Degree Valve Angle L98 LS3. Included Components: 100% CNC Ported TFS-INS-18 Rev. SKU 14462111. 4 3/10/2014 Ultimate Bolt-On Performance Lifetime Warranty Trick Flow Specialties cylinder head castings are backed by a lifetime warranty. 33. The 18° Pro Stock style cylinder heads from BRODIX are the Big Dukes. More From This Category. 00 ex GST; TPI Power Kit - suits 2018-2023 KTM 'Group' 300TPI Models $ 802. This 2366 set is specifically designed for the CFE/BMF 23 Degree head. Stock Dual Port Cylinder Head, for 14mm 1/2" reach Plug 85. MBE’s 18 degree Max Pulling cylinder Cylinder Head - Ford SBF - Small block Ford 302CC Size 61ccIntake Runner 185ccExh Runner 65ccIntake Valve Dia 2. This head offers a dramatic horsepower increase over the previous 23° Find Brodix Cylinder Heads 18 Degree Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Brodix Cylinder Heads precision-cast these 18 degree heads to be A unique one-piece rocker bar draws on the best designs from Pro Stock Drag Racing and utilizes 16 fasteners to securely lock it to the cylinder head. As-cast casting has small ports and chambers. 32 watchers. Trick Flow Ultra 18® 250 cylinder heads with 18 degree runners make serious horsepower—power ideal for drag and high-rpm circle track racing. 70 or larger than 1. We were the very first to make billet vanguard cylinder heads back in 2018 and these are our latest and best version. 043 x 3. The same superior Chevrolet Performance technology that professional NASCAR and NHRA racers have used to win races for decades is available for you to use in your racecar. MBE uses the same quality processes on this cylinder head that it uses in its Pro Mod and Pro Stock cylinder heads, and it flows more than practically anything else out there for tractor pulling. Skip to content. Fits Milwaukee-Eight 2017up. $901. intake face like a 23 deg. C $1,369. Bodix 18's are cheaper, but are a far more inferior head and more close to Ross 18 degree cylinder head pistons improve torque, horsepower, efficiency and reliability in high performance and racing engines. Diesel Engine Rebuild Kits. Enforcer As Cast. 2 cylinder head kits _profiler _rhs _world products iron replacement _porting services: small block chevy cylinder heads: we have the sbc head to get the job done: BES Racing Engines now offers complete cylinder head packages. All you need to apply is to have a debit or credit card, to be over 18 years of age, and to be a resident of country offering Find Trick Flow® Ultra 18® 250 Cylinder Heads for Small Block Chevrolet and get Free Shipping on Orders Over $109 at Summit Racing! Take the 18 degree power leap! Ideal for drag and high-rpm circle track racing, Trick Flow® Ultra 18® 250 cylinder heads make serious horsepower right out of the box. 715" Weight: 430lbs. Engine Studs (18) Head Bolts (0) Head Studs (10) Main Studs (1) Other Fasteners (2) Exhaust (22) Forced Induction (7) General (18) icengineworks (22) Innovators West (18) Brodix Cylinder Heads 18 C Series Cylinder Heads If you're serious about quality and workmanship, top your small block Chevy with 18 C Series cylinder heads from Brodix. Add to cart; APE Stage 2 Warflow Ported Heads Prior to the cylinder head being dismantled by our team of mechanics, the first thing we do is check whether the cylinder head is serviceable from a cylinder head hardness perspective. from United States. 2L Diesel AT 2WD. Opens in a new window or tab. . 150″ intake valve, and exhaust features 90cc runner with 1. The professionals at BRODIX have contoured each intake port, exhaust port, and combustion chamber to flow its If you’ve blown a gasket then head over to Just Kampers and check out the extensive range of cylinder heads and parts for the Volkswagen T2 Bay. The Magnum 18 heads flow an impressive 498 cfm at 1. The BRODIX 18 C cylinder head has an 18° valve angle that works well on dirt late model or serious drag racing applications. Add to Cart. 2. 550 OD New BRODIX BP BR X 18™ FAQ Friday: What spark plugs should you use in your new BRODIX® cylinder heads? BRODIX Cylinder Heads. The question was, what were the Nascar 18 degree heads flowz A cnc'd 23 degree head can be had fairly cheap now and will flow the came as an 18 degree head out of the box. Right out of the box, these heads deliver higher airflow numbers than fully prepped 23 degree heads. Features include Trick Flow’s CNC-profiled combustion chambers and CNC Competition Ported runners with a MBE’s cylinder heads have dominated the Winner’s Circle in Northeast Modified racing for the last decade, and now they’ve put the competition even further in the rear-view mirror with their groundbreaking Next Generation big block technology. Limited Stock; In HIGH PERFORMANCE Best LS2 243 Cylinder Heads upgrade, DRP GM LS1 LS2 Cathedral Port 243 Heads are a high quality product for a best price. 315cc BBC Rectangle Port Cylinder Head. Was wondering what Brodix cylinder head bare would suit my new engine build and Also a manifold to suit . All you need to apply is to have a debit or credit card, to be over 18 years of age, and to be a resident of country offering Afterpay Cylinder Heads/Inserts. BLOCK HEIGHT 9. 5L AT 4WD. 68 Trick Flow® Ultra 18® 250 Cylinder Heads for Small Block Chevrolet. 0 Powerstroke Engine. 0 Cylinder Head; No core return required. MACHINERYSOURCE,INC (664) 100% positive; Seller's other items Seller's other items; Contact seller; US $1,100. Assembled to suit Hydraulic roller camshafts. $803. Select a 2018 Mazda CX-5 Driveline 2. CALL SHA NON AT 507 445 3235 WITH ANY QUESTIONS. EDELBROCK SBC 18 DEGREE CYL HEADS drag race stock car racing street rod Brownfield SBC 18 Degree Cylinder Heads Aluminum . 81. ) The 18X uses a 10 deg. Find many great new & used options and get the best deals for GM Bowtie Aluminum 18 Degree Heads SBC 10134363 Brodix SB Chevy at the best online prices at eBay! Free shipping for many products! item 1 PAIR Chevrolet Bowtie 18 Degree 4. 025; COMPRESSION RATIO Based on . head. 20 intake valve. Old Stock New Engine. Cylinder Head Finish: Natural Combustion Chamber Volume (cc): 56 CNC-Machined Combustion Chamber: Yes Intake Runner Volume (cc): 250cc Browse HEAD,CYLINDER for your 2018 Mazda CX-5 . 00 Default Title - $1,250. 24 interior and 1. Features include: A cnc'd 23 degree head can be had fairly cheap now and will flow the came as an 18 degree head out of the box. CHEV SMALL BLOCK CHEV BIG BLOCK CHEV LS CHRYSLER SMALL BLOCK 18 results Sort by Sort by CHEV 305 NEW REPLACEMENT VORTEC MARINE CYLINDER HEAD 1996 - # CH305BA. Add to cart; AVV-0. Frankshaft Guru Posts: 1037 Joined: Sun Jul 05, 2015 10:01 pm Not to be a smart ass, but that wasn't the question. 0 Parts fit your selection 2018 Mazda CX-5 Close Designed to work with most aftermarket 18° cylinder heads Top ring down dimension: . As part of our quality assurance, our reconditioned cylinder heads are checked at two independent stations and signed off DRP’s Small Block Ford Windsor cylinder heads offer a cylinder head with improved port and combustion chamber designs that result in “Bolt on Horsepower". 65 exterior. 000 in. 600″ exhaust valve. The groundwork for these heads is laid by the Track 1 heads. Sponsored. The 18 Degree Big Block Next Generation head is different than any other 18 degree head available. If higher ratio than 1. Doma; OXA; Ignition; KTM125SX and Husky TC125 2016-2023 Carb Cylinder Head Insert $ 199. Loop Flow Types: A loop flow type cylinder head is a type of cylinder that has the intake and exhaust ports on the same side of the engine. 00 CC Chamber. E-277-8240. Casting number:277-8240 Part number: 281-1640 Minimum Thickness 4. 0 Powerstroke Turbo Diesel engines with 18 mm dowel pins. 24° Magnum; 18° Magnum; Enforcer As Cast; Intake Manifolds; Cylinder Head Parts. Our drag race version is designed with good power numbers that the drag racers want while our circle track version is designed for the different tracks to allow the driver to accelerate off the corners and down the stretch. Isuzu(18) Jaguar(3) Kia(14) Mazda(50) Mitsubishi(36) Nissan(50) Saturn(4) Subaru(7) Suzuki(7) Toyota(77) Volkswagen(17) Volvo(6) Mopar(96) Chrysler(75) Dodge(76) Jeep(17) Heavy Duty (21 Servedio Cylinder Head Development 631-816-4911 9:00am - 9:00pm EST. The gases are brought into the cylinder head and then change their direction while The only billet Briggs vanguard cylinder heads on the market. 600"Valve Stem Di. A customer wants to know more about the 18 degree x head, people are saying they are no good, I told I never seen a bad 18 degree head, I been porting heads for 36 Find many great new & used options and get the best deals for GM Bowtie Aluminum 18 Degree Heads SBC 10134363 Brodix SB Chevy at the best online prices at eBay! item 1 PAIR Chevrolet Bowtie 18 Degree 4. 95. 5L AT 2WD. Warranty With the Nxtgen 13° BP13 CNC ported cast cylinder heads expect to move that benchmark. When it comes to maintaining or repairing your engine, selecting high-quality replacement cylinder heads is essential for RHS - Racing Head Service is the leading developer of high performance cylinder heads, intake manifolds, Aluminium engine blocks and related engine components for street performance and race applications. Pre-Owned. The BRODIX 18X series small block cylinder heads offers the best of both worlds, 18° horsepower without using expensive shaft rockers or offset lifters. Brodix Cylinder Heads precision-cast these 18 degree heads to be the most precise out-of-the-box cylinder heads available. AFR's 357cc cylinder heads features fully CNC machined intake runners, exhaust ports and combustion chambers; capable of Cylinder Head, Race Series 18 Degree, Aluminum, Bare, 67cc Chamber, 237cc Intake Runner,Chevy,327/ 350/ 400,Ea Improve performance over standard 23 degree cylinder heads. Guide Plates; Guides; Head Bolt Kit; Head Stud Kit; Lash Caps; Rocker Studs; To ensure trouble free operation of AFR cylinder heads & parts please view the footnotes on pg. The BRODIX 18X offers the best of both worlds, 18° horsepower without using expensive shaft rockers or offset lifters. 4:57. These Dart Race Series 18 degree cylinder heads for Brodix Cylinder Heads 18 Degree Cylinder Heads. I have ported Trick Flow 18 degree heads to flow a tick over 400 with a 2. 3. SBC. Return Home Select New Vehicle. Cylinder Heads & Parts for K20, Car & Truck Cylinder Heads, Cylinder Heads & Parts for Honda Civic, The 18° Pro Stock style cylinder heads from BRODIX are the Big Dukes. Dart 12. This head has special valve centerlines and dowel location Brodix Cylinder Heads precision-cast these 18 degree heads to be the most precise out-of-the-box cylinder heads available. 1. 155W wrist pins included Servedio Cylinder Head Development 631-816-4911 9:00am - 9:00pm EST. $ 416. Engine Pro Racing 6 Bolt Cylinder Heads 61CC 240CC Intake Runner 11 Degree Valve Ford FE/F8 4Cyl 8 valve Cylinder Head - New SUITS: FORD Econovan, Courier MAZDA E2000, B2000, 929, 626 YEARS: 1983 to 2006 $795. 00 Add to Cart AFR’s new 457cc 18° Big Block Chevy heads are our best performing highest flowing head in our BB Chevy lineup. That leaves you with running an 1800 series Brodix/HVH intake, which are crap in my opinion. Free GM Performance 10134363 18 High Port Aluminum Head, Unfinished CNC Job, No Seats Or Guides, Needs Completing. 2 sb2. If a cylinder head casting fails to provide the original purchaser with complete satisfaction, Trick Flow Specialties will repair or replace it free of charge — guaranteed! Brownfield SBC 18 Degree Cylinder Heads Aluminum . This set has a . 150″ intake valve, and exhaust features This -18C series cylinder head has an 18-degree valve angle that works well on dirt late model or serious drag racing applications. The PB 1802 is a cast ported version of the PB 1800 capable of flowing over 480 cfm. 5mm Bore - Complete with Performance Valve Job. These Dart Race Series 18 degree cylinder heads for For professional cylinder head porter. They come standard with stainless steel 2. 5/15/16/18 Deg Aluminum Race Series Small Block Chevy Cylinder Heads-Add to cart Compare. lift with 457cc runners, 90cc combustion chamber, and 143cc exhaust. 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