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Pro-Filer big block Chevy Sniper X cylinder heads are fully CNC-machined for optimum performance. They're designed to be used with standard big block Chevy parts, including stud mounted rockers and pistons or the most wicked parts in the industry. They flow over 460 cfm on a 375cc runner and over 325 cfm on the exhaust. Features include a 5 angle valve job with .350 in. longer intake and .100 longer exhaust valves, 119cc heart-shaped combustion chambers, and 24 degree OEM X275 class accepted valve angles. Wake up your 502 c.i.d. or larger motor with the incredible performance of Pro-Filer big block Chevy Sniper X cylinder heads. Additional features: * Spark plug locations are machined for a gasketed 3/4 in. reach plug NGK R5671A-7 or colder * Requires a 1 in. longer head bolt or stud next to exhaust ports *Available with either 355cc or 375cc intake runners and steel or copper alloy valve seats
Not Yet Reviewed
$2,064.75
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$3,020.39
These Summit Racing™ top end Pro Packs are guaranteed to give your engine a shot in the arm. We have taken out the guesswork and matched up all of these components for maximum bolt-on power, right out of the box. Get one of these Summit Racing™ top end Pro Packs and put your motor on track for some serious horsepower. Features include: * Pair of cylinder heads that will outflow your stock heads * Head bolts * Intake manifold * Intake gaskets * Intake bolts
( 1 )
$3,355.65
Edelbrock Pro-Port raw cylinder heads are un-ported versions of the Edelbrock race-winning Victor Series CNC heads for the professional cylinder head porter and engine builder. Pro-Port raw cylinder heads are cast with extra-thick walls to allow for custom CNC porting. They are the only heads designed specifically to accommodate almost any CNC port shape, size or location. Some Edelbrock Pro-Port raw heads feature their special Hot Isostatic Pressing or HIP Process.
Not Yet Reviewed
$2,220.50
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$2,340.50
Are you looking for big torque and horsepower numbers? AFR's 325cc Magnum big block Chevy line of medium-volume intake runners will provide you with exactly that. The phrase "having your cake and eating it too" would certainly be appropriate with their moderately sized intake runners producing tremendous flow figures across the entire lift range. These high-flow/high-velocity ports provide extreme versatility and fill the needs of many applications. From a max-effort high-compression 454 to a 605 c.i.d. low-rpm marine application, these aluminum cylinder heads would be a great choice. AFR Magnum heads would also be ideal in larger cubic inch Pro Street applications with their broad torque range, as well as their significant rpm and horsepower capabilities. These cylinder heads will work best with a primary operating range of 3,000-7,000 rpm (this range is an average and will vary with engine displacement as well as component selection). These 325cc heads come standard with AFR's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves. The standard combustion chamber volume is 119cc on these AFR's 325 "as-cast" pieces. The heads are available with an optional 114cc combustion chamber as well.
( 1 )
$3,754.80
If huge horsepower is what you're searching for, then AFR 345cc Magnum BBC cylinder heads will certainly deliver. They're recommended for radical street/strip, Pro Street, or racing applications on engines up to 572 cu. in. operating below 7,000 rpm—and are capable of flowing 400 cfm at 0.700 in. of lift. These A356 aluminum heads are designed for maximum horsepower and rpm capability, with an average primary operating range of 3,500-8,000 rpm; they also provide impressive torque figures. AFR recommends the use of .120 in. wall pushrods and full-roller rocker arms for strength. It's vital that you check clearance of all moving parts due to the vast array of rocker arms, lifters, cams, springs, etc. Don't forget to check pushrod-to-head clearance, as well as any potential interference from your rocker arms and spring assemblies prior to final engine assembly. AFR 345cc Magnum BBC cylinder heads come standard with AFR's trademark 3/4 in. thick cylinder head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves.
( 4 )
$4,050.90
Developed and designed in conjunction with 8-time Pro Street World Champion Pat Musi, these Edelbrock Musi/Victor 24 degree CNC-machined cylinder heads are sure to perform at the highest level. They are manufactured from high-quality aluminum and feature CNC-machined combustion chambers, intake runners, and exhaust port runners. They are available in a bare casting or an assembled version. The assembled version includes stainless steel 2.30 in. intake and 1.90 in. exhaust valves, Manley valve springs for a solid roller camshaft, 10 degree titanium retainers and locks, guideplates for 3/8 in. diameter pushrods, and 7/16 in. rocker arm studs. Get maximum horsepower right out of the box with these Edelbrock cylinder heads.
Not Yet Reviewed
$2,122.50
Brodix Cylinder Heads Big Duke PB 1800 cylinder heads are designed to work with big cubic inch pro-stock style engines. They are made from A-356 virgin aluminum, include ductile iron valve seats, and have accessory bolt holes drilled. The Big Dukes are capable of flowing over 500 cfm, perfect for high-winding, high-horsepower big block engines. These heads will require the use of the following special parts for installation: * Intake manifold * Headers * Shaft mount rocker arm system * Head stud kit * Custom-fabricated valve covers * Custom-made piston set
Not Yet Reviewed
$3,020.99
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