Availability
Designed for 396-502 c.i.d. big block Chevy engines, these Edelbrock cylinder heads include heavy-duty exhaust valves that provide the added durability needed for marine applications, and have one-piece, stainless steel intake valves with hardened tips and swirl-polished heads. The high-velocity flow capabilities of Edelbrock Performer RPM cylinder heads provide increased torque across a wide rpm range that's ideal for marine use. They're cast from A356 aluminum and heat-treated to T6 specs. Their oval-port heads have 110cc chambers and their rectangular port heads have 118cc chambers. Both the oval and rectangular port heads are hard-anodized to protect the aluminum in the harsh marine environments.
( 2 )
$1,780.50
Dart Pro 2 Marine aluminum cylinder heads are foundations for optimized airflow and increased power. They are cast from 355 T-61 aerospace alloy with an exclusive chromate surface finish to inhibit salt corrosion for marine use and provide superior strength and integrity for longer life. Top your boat engine with Dart Pro 2 Marine cylinder heads.
Not Yet Reviewed
$2,971.98
Power your boat like a pro with Dart Pro 1 Marine cylinder heads. Their aluminum cylinder heads are offered bare or assembled for out-of-the-box performance. Pro 1 Marine heads are cast from 355-T61 aerospace alloy with an exclusive chromate finish to inhibit corrosion and provide superior strength and integrity. These Dart cylinder heads have highly efficient chambers with race-proven features, including rolled valve angles, an improved spark plug location, extra-long intake valves, raised exhaust ports, and fast-burn chambers. Assembled heads include super-tough Inconel exhaust valves to withstand the extended running times and temperatures typical of marine usage. Top your boat block with a couple of power makers--Dart Pro 1 Marine aluminum cylinder heads.
Not Yet Reviewed
$1,727.65
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$2,650.45
On Sale
Quicksilver cylinder heads are ideal replacement components for many GM-style 4-cylinder and V8 engines in marine, circle track racing, RV, truck, and hard-to-find industrial applications. With exclusive Black-X valves, they are designed to be the most robust, durable, and toughest service cylinder heads available. Select the cylinders heads designed to fit your engine. Features and benefits: * Thicker castings * Improved combustion chamber for better burn characteristics * Premium springs and hardened seats on the intake and exhaust ports * Quicksilver exclusive Black-X valves -- Composite valves -- Stainless steel treated with a cobalt-chromium alloy and black plasma nitriding -- Contribute to a 42 percent reduction in valve wear compared to traditional stainless steel valves with hardened seats -- Longer engine life, especially in the presence of modern ethanol-blended fuels * Backed with a 1-year limited warranty
Not Yet Reviewed
$1,316.99
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$2,538.99
$1,185.29
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$2,285.09
Inspired by Dart's championship winning Pro Stock designs, Dart Pro 1 aluminum cylinder heads cover a wide range of applications from street cars and trucks to all-out racing. Heads designed for street performance and mild bracket racing offer excellent mid-range torque and power, and are excellent for heavier vehicles. Competition heads are ideal for maximum effort naturally aspirated, big boost forced induction, or nitrous applications. Dart Marine Pro 1 cylinder heads feature an exclusive chromate surface finish to inhibit corrosion and extend the life of the head. They are also fitted with Inconel exhaust valves to withstand the extended running time and temperatures typical of marine usage. Dart's as-cast ports flow more than many ported designs at a much more affordable price. But they also offer fully CNC-machined heads with every intake port, exhaust runner, valve bowl, and combustion chamber shaped by their 5-axis, computer controlled machining centers to produce compound curves and complex shapes that no human could duplicate with a hand grinder. Available bare or fully assembled, long-wearing bronze valve guides, screw-in studs, multi-angle intake seats with hardened, radiused exhaust seats are standard on most heads. Assemblies typically include stainless steel valves, premium springs, locks, retainers, guide plates, and seals. Many Pro 1 heads include race-proven features such as improved spark plug location, extra-long intake valves, raised exhaust ports, and fast burn chambers. They are offered an extensive variety of valve angles, intake port volumes and shapes, exhaust port locations, valve sizes, and chamber volumes.
( 10 )
$872.89
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$4,257.19
Dart's Pro1 Mercury Racing cylinder heads are perfect if you need a little more power, and are true bolt-on replacements patterned on professional competition heads. The intake ports are precision-cast from C355-T61 aerospace aluminum, come available with 310cc, 325cc, or 345cc intake runners, and have the correct exhaust bolt pattern for factory manifolds. The yellow chromate surface treatment inhibits salt and corrosion for marine usage. They are available bare or assembled. Choose the right configuration for your motor and any special parts and considerations. Assembled heads also include Inconel exhaust valves to withstand extended running time and temperatures.
Not Yet Reviewed
$1,914.99
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$2,815.75
Edelbrock Performer RPM aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. These heads offer improved power throughout the RPM range for greater throttle response and top-end horsepower. Countless options are available; order the model recommended for your vehicle and engine application.
( 163 )
$1,558.50
Trick Flow® PowerOval® 280 cylinder heads for big block Chevy are an ideal upgrade from factory cast iron heads for street/strip and marine applications. They feature an oval intake port design that produces excellent low and midrange torque and horsepower, plus Fast As Cast® runners for near-CNC-ported performance for about the same money as standard cast heads. Efficient heart-shaped, CNC-profiled combustion chambers have CNC bowl blended valve seat transitions to promote high velocity and huge airflow volume, plus 24 degree valve angles with 4 degree side cants to further increase airflow. Other features include .300 in. raised exhaust ports, and extra-thick decks and walls for porting. Trick Flow® PowerOval® 280 cylinder heads are available fully assembled or as bare castings. Sold individually.
( 4 )
$999.99
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$1,599.99
Perfect for high performance street/strip, racing, and marine big block Chevy engines, Trick Flow® PowerPort® 320 cylinder heads deliver exceptional mid- to high-rpm performance. The Fast As Cast® rectangular runners flow almost as much air as fully CNC-ported heads right out of the box. That means you'll get CNC-ported performance for about the same price as regular cast heads. The fully CNC-profiled, heart-shaped combustion chambers have CNC bowl blended valve seat transitions to promote high velocity and huge airflow volume, plus 24 degree valve angles with 4 degree side cants to further increase airflow. Other features include premium, high-strength aluminum castings, extra-thick decks and walls for porting, and adjustable guideplates. Trick Flow® PowerPort® 320 cylinder heads are available fully assembled or as bare castings. Sold individually.
( 1 )
$999.99
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$1,599.99
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 )
$3,158.40
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$4,050.90
FLOTEK 360cc big block Chevy cylinder heads are manufactured from cast aluminum and designed to meet the demands of BBC enthusiasts while retaining high quality at a reasonable price. They're ideal for all high performance street/strip, racing, and marine applications. Features include rectangular intake runners for strong mid-to-high-rpm performance. They can be used with stock pistons and raised valve covers (exhaust port location is raised 0.500 in.). FLOTEK 360cc cylinder heads for big block Chevys deliver exceptional power potential and competition-level durability. Models are available assembled or bare for a variety of engine applications. NOTE: This item is not sold as a pair; this is a single cylinder head.
( 3 )
$799.00
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$1,349.00
Don't let their size fool you—AFR Magnum 305cc "as-cast" heads with a CNC bowl blend will provide you with flow numbers that most medium-sized heads, and some larger, can only dream about. This line was designed to optimize low and mid-lift airflow, while still generating impressive peak figures. Their application should be focused on smaller cu. in. Chevy big blocks (396-502) with a primary operating range of 2,500-6,800 rpm (this range is an average and will vary with engine displacement, as well as component selection). AFR 305cc Magnum BBC heads should also be given strong consideration in larger street-driven or marine applications up to 555 c.i.d., where low-rpm power and drivability are factors. These cylinder heads would be a great choice if you're looking for big torque and strong low-rpm performance and still have good rpm capabilities. The heads come standard with AFR's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.250 in. intake valves and 1.880 in. exhaust valves. Standard combustion chamber volume is 119cc. These heads are available with an optional 114cc combustion chamber as well.
( 1 )
$3,158.40
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$4,050.90
Are you looking for big torque and horsepower numbers? AFR's 335cc 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 (AFR CNC 335 heads flow 410 cfm!). 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). The 335cc 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 for the fully CNC-ported 335cc is 121cc. They are available with an optional 114cc combustion chamber as well.
( 3 )
$4,344.90
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$4,938.15
FLOTEK 375cc big block Chevy cylinder heads are designed with the racer in mind. They're fully CNC ported and feature 127cc combustion chambers. The heads are cast from a permanent steel mold and finished with a beautiful polycrystalline diamond-cut finish. Their thick deck design and high-capacity water jackets make them a reliable choice for racing applications. These models accept stock pistons and feature raised valve cover rails (exhaust port location raised 0.360 in.). FLOTEK 375cc BBC cylinder heads are just wicked for the marine or strip enthusiast! Order assembled or bare. NOTE: This item is not sold as a pair; this is a single cylinder head.
Not Yet Reviewed
$1,159.00
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$1,869.00
Edelbrock Victor Jr. CNC cylinder heads are a CNC-ported version of Edelbrock's Performer RPM heads. These cylinder heads feature a high velocity port design that's ideal for Super Gas, Super Comp, Hi-Po Marine, all-out street and Pro Brackets. Victor Jr. CNC cylinder heads have smaller than stock 11/32 in. valve stems to promote excellent flow and lighter valve weight.
Not Yet Reviewed
$2,176.50
Don't let their small size fool you—AFR Magnum fully CNC-ported 315cc aluminum cylinder heads will provide you with flow numbers that most medium sized heads, and some larger, can only dream about. This line was designed to optimize low and mid-lift airflow, while still generating impressive peak figures. Their application should be focused on smaller cu. in. Chevy big blocks (396-502) with a primary operating range of 2,500-6,800 rpm (this range is an average and will vary with engine displacement as well as component selection). AFR 315cc Magnum BBC heads should also be given strong consideration in larger street-driven or marine applications up to 555 c.i.d., where low-rpm power and drivability are factors. Extremely versatile with their incredibly strong low and mid-lift airflow figures, as well as peak numbers approaching the 400 cfm mark, the 315cc heads would be a great choice if you're looking for big torque and strong low-rpm performance and still have good rpm capabilities. They come standard with AFR's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.250 in. intake valves and 1.880 in. exhaust valves. Standard combustion chamber volume with AFR's fully CNC-ported 315cc version comes with a 121cc chamber. These AFR heads are available with an optional 114cc combustion chamber as well.
( 1 )
$4,344.90
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$4,938.15
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.
( 41 )
$498.99
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$593.99
Fel-Pro headbolt kits contain a complete set of the highest quality headbolts and hardened washers available. They're cold-formed to ensure molecular integrity, then heat-treated prior to thread rolling and machining. Reduced-diameter bolt heads eliminate the need for valvetrain removal and facilitate cylinder head re-torquing. The bolts are available in a variety of head styles for fitment on specific vehicle and cylinder head applications.
( 217 )
$32.99
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$49.99
Mahle Original fasteners deliver the clamping force necessary to seal the combustion chambers, as well as the oil and coolant passages--even at extreme temperatures and pressures. On your next cylinder head reassembly, use bolts designed to exact specifications for the best sealing solution--Mahle Original head bolt kits.
( 35 )
$64.99
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$80.99
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