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Are you building your own personal street/strip weapon? These AFR 195cc SBF Competition cylinder heads are designed for you. To make big horsepower, you need heads that can flow large amounts of air--that's where AFR, the masters of airflow come in. These heads feature a 195cc intake port, 70cc exhaust ports, and your choice of 58 or 72cc combustion chambers to complement your engine. To get the fuel and air in and out efficiently, AFR uses lightweight 8mm 2.050 intake valves and 1.600 exhaust valves. The thick deck makes these heads ideal for nitrous or blower applications with the optional nitrous/blower exhaust port. These heads are most at home on performance engines operating primarily between 2,000 and 7,000 rpm. Dominate the street and strip with the help of AFR and these 195cc SBF Competition cylinder heads.
( 1 )
$2,947.35
OEM Duramax cast aluminum cylinder heads fall short over time; the different heat expansion crates between cast iron engine block and cast aluminum cylinder head cause head gasket scrubbing, and eventually blown head gaskets. Aluminum cylinder heads are also prone to warping, melting, and/or cracking in high performance applications where excessive heat is introduced. Pacific Performance Engineering LB7 cast iron cylinder heads are the ultimate upgrade to your Duramax engine and eliminate any head gasket or cracking concerns. Cast from high-quality alloyed grey iron, PPE LB7 cylinder heads offer elevated fatigue strength and heat and creep resistance, which prolongs the cylinder head's lifespan significantly. They also share the same heat expansion rate as the stock cast iron cylinder block, so no more blown head gaskets. These cylinder heads also feature cast-in fuel injector cups and solve the OEM injector cup leaking issue. Each head comes complete with brand new springs, spring retainers, spring locators, valves, valve seals, valve keepers, valve seats, valve guides, rocker arm dowels, and freeze plugs. Whether you have a damaged aluminum cylinder head or a desire for better reliability and longevity on your Duramax engine, the Pacific Performance Engineering LB7 cast iron cylinder head is undoubtedly the best choice. Component features and benefits: * Premium 21-4N, Stellite-reinforced exhaust valves, and chrome-silicon alloy intake valves * All valves are fully nitridated with increased abrasion resistance * High-strength, CNC-machined chromoly steel spring retainers and spring locators * Upgraded tapered valve springs provide faster response and eliminate valve float at high rpms * Powdered metal valve seats offer superior wear and heat resistance * Significantly reduced diesel engine clatter compared to the factory aluminum cylinder heads * Increased thermal efficiency compared to aluminum heads * 3-Year Unlimited Mileage Warranty
Not Yet Reviewed
$1,349.99
OEM Duramax cast aluminum cylinder heads fall short over time; the different heat expansion crates between cast iron engine block and cast aluminum cylinder head cause head gasket scrubbing, and eventually blown head gaskets. Aluminum cylinder heads are also prone to warping, melting, and/or cracking in high performance applications where excessive heat is introduced. Pacific Performance Engineering LLY/LBZ/LMM cast iron cylinder heads are the ultimate upgrade to your Duramax engine and eliminate any head gasket or cracking concerns. Cast from high-quality alloyed grey iron, PPE LLY/LBZ/LMM cylinder heads offer elevated fatigue strength and heat and creep resistance, which prolongs the cylinder head's lifespan significantly. They also share the same heat expansion rate as the stock cast iron cylinder block, so no more blown head gaskets. These cylinder heads also feature cast-in fuel injector cups and solve the OEM injector cup leaking issue. Each head comes complete with brand new springs, spring retainers, spring locators, valves, valve seals, valve keepers, valve seats, valve guides, rocker arm dowels, and freeze plugs. Whether you have a damaged aluminum cylinder head or a desire for better reliability and longevity on your Duramax engine, the Pacific Performance Engineering LLY/LBZ/LMM cast iron cylinder head is undoubtedly the best choice. Component features and benefits: * Premium 21-4N, Stellite-reinforced exhaust valves, and chrome-silicon alloy intake valves * All valves are fully nitridated with increased abrasion resistance * High-strength, CNC-machined chromoly steel spring retainers and spring locators * Upgraded tapered valve springs provide faster response and eliminate valve float at high rpms * Powdered metal valve seats offer superior wear and heat resistance * Significantly reduced diesel engine clatter compared to the factory aluminum cylinder heads * Increased thermal efficiency compared to aluminum heads * 3-Year Unlimited Mileage Warranty
Not Yet Reviewed
$1,349.99
On Sale
Brodix offers IK 215 Series cylinder heads for small block Chevy 350 and 400 engine applications—focusing on the only two things that matter: performance and price! They include a revolutionary ultra casting, versatile intake ports designed for optimum versatility, and combustion chambers that allow the use of several types of fuel. Standard features are A-356 virgin aluminum alloy, phosphorous bronze valve guides, valve seats for use with unleaded fuel, ends milled and drilled for accessories, and a straight spark plug angle. These are the most affordable high-quality aluminum cylinder heads on the market. The hassle-free top-end combo kits include: * Complete cylinder heads * Intake manifold (4150 Series) * Valve covers * Headbolts and washers * Intake bolts and washers * Valve cover studs and nuts * Head gaskets * Intake gaskets * Exhaust gaskets * Carburetor gaskets * Valve cover gaskets * Spark plugs * Brodix hat IK Series 23-degree cylinder head details: * Standard valve cover pattern * 64 cc / 70 cc combustion chambers * Straight spark plugs * Ends milled and drilled for accessories * Ductile iron valve seats for use with unleaded fuel * CNC-ported combustion chambers available as large as 75 cc
Not Yet Reviewed
$3,255.99
$3,093.19
These Dart Iron Eagle S/S cylinder heads are the perfect way to squeeze a little bit more performance out of your street engine. They are designed to offer many of the features of other high-end cylinder heads at a more affordable price. Dart produces these heads from premium, high-density cast iron with extra-thick decks for durability and power potential. These heads feature precision-cast 165cc intake ports and heart-shaped combustion chambers that are designed to produce great airflow without expensive or time-consuming porting. The hardened exhaust valve seats are fully compatible with unleaded fuels, and the multi-angle intake and radiused exhaust seats further improve flow, maximizing power. Dart utilizes screw-in rocker studs that won't pull out, even under heavy use, and the machined valve cover rails eliminate possible oil leaks. All you have to do is choose which combination of combustion chamber volume and valve size will best complement your engine, and whether you want fully assembled, bolt-on heads or bare, ready-to-build castings. Dart Iron Eagle S/S cylinder heads produce great throttle response and gains in low-to-midrange torque, just where you need it, for your street hot rod, musclecar, or pickup.
( 7 )
$976.58
On Sale
VEGE Remanufactured cylinder heads are a popular choice for performance and value. With its advanced and efficient production process, backed by more than eight decades of experience, VEGE is able to supply remanufactured cylinder heads with a level of quality that equals that of new OEM products—at extremely competitive prices. The rebuilt cylinder heads are carefully inspected, cleaned, and then fully machined and assembled with top-of-the-line components. Unless otherwise noted, the assemblies include a cast iron or aluminum cylinder head, intake and exhaust valves, valve springs, retainers, locks, stem seals, rocker arm studs, and more. Many heads include rocker arms. Nearly a thousand models are available, for fitment on countless applications.
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$472.99
$422.99
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$996.99
Chevrolet Performance Gen V LT1 head cam kits will increase your already-strong LT1. With CNC-ported heads and a camshaft designed specifically for direct injection, these kits offer the first "Hot Cam" for the Gen V LT1. Your kit may include: * Camshaft * Valve lifter guide * Valve lifters * CNC cylinder head assembly Note: Recalibration is required for accurate engine operation.
Not Yet Reviewed
$3,702.92
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