Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Availability
GMC Engines & Components
Showing In Stock Items. Show All 45 Items.
Edelbrock E-Street Cylinder Heads
Are you looking for a set of entry-level street performance heads for your modern street rod, muscle car, or truck? Edelbrock E-Street cylinder heads are just the ticket. These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. Their modern combustion chamber design helps to improve the combustion process and their larger-than-stock intake and exhaust ports help to move more air through your engine. These features improve an engine's efficiency, resulting in more horsepower and torque and improved mileage potential. All Edelbrock E-Street cylinder heads are assembled with manganese bronze valve guides, powder metal interlocking valve seats, and stainless steel one-piece valves with hardened valve tips. Edelbrock E-Street cylinder heads are ideal for entry level street performance engines.
( 119 )
$1,291.95
—
$1,343.50
Edelbrock Performer RPM 454-O High-Compression Cylinder Heads
Edelbrock Performer RPM 454-O high-compression cylinder heads offer smaller ports for bigger performance. Designed for big block Chevy's with oval ports, these cylinder heads feature unique oval intake ports that flow similar to rectangular ports but the smaller size provides excellent seat-of-the-pants performance plus crisp throttle response! And, the 100cc chamber volume is ideal for your high-compression application. Both the intake and exhaust ports of these Performer RPM heads have been profiled for improved air flow and they have smaller-than-stock valve stems for less weight and excellent flow. More flow, more power, and more performance for your big block application comes with a set of Edelbrock Performer RPM 454-O high-compression cylinder heads.
( 14 )
$1,214.50
—
$1,251.50
Edelbrock Performer RPM Cylinder Heads
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.
( 171 )
$1,040.50
—
$1,295.50
Edelbrock Performer Cylinder Heads
All Edelbrock 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. They offer improved power throughout the rpm range for greater throttle response and top-end horsepower. The intake and exhaust runners are CNC-machine profiled for superior flow and performance.
( 41 )
$1,059.50
—
$1,251.50
COMP Cams Thumpr LS Master Camshaft Packages
COMP Cams Thumpr LS Master camshaft packages come as a complete valvetrain parts package that is matched for specific LS applications and desired performance. COMP Cams engineers have spent countless hours testing and creating valve train component combinations that are perfectly matched for maximum horsepower and dependability, as well as creating that wildly popular Thumpr sound in GM LS applications. These packages can add anywhere from 60 to 110 hp (depending on the application). COMP Cams Thumpr LS Master camshaft packages include: * Thumpr LS camshaft * Lifters * Timing gear set * Pushrods * Valve springs * Retainers * Valve locks * Spring seats * Valve seats
( 8 )
$1,288.95
Fleece Performance Freedom Series DuraMax Cylinder Heads
Fleece Performance introduces the Freedom Series cylinder heads for 6.6L Duramax engines, found in many Chevy and GMC trucks from 2001 and up. Each cylinder head is manufactured in-house at the state-of-the-art Freedom Racing Engine Shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Available with new or remanufactured casting.
Not Yet Reviewed
$1,199.00
Pacific Performance Engineering LB7 Cast Iron Cylinder Heads
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
Edelbrock Rollin' Thunder Hydraulic Roller Cam, Lifter, and Pushrod Kits
Make some noise with one of these Edelbrock Rollin' Thunder hydraulic roller cam, lifter, and pushrod kits. They feature a hydraulic roller camshaft and improved hydraulic roller lifters that have more aggressive profiles than conventional cams without excessive valve overlap. They do this by testing and tuning them together on engine dynamometers for maximum performance. There's no guesswork about part compatibility with the Edelbrock Rollin' Thunder hydraulic roller cam and lifter kits, and you can be sure that all of the combinations will perform. Recommended for high performance street and strip use, the Edelbrock Rollin' Thunder hydraulic roller cam and lifter kits work best from 1,500 to 6,500 rpm and they maintain good vacuum at idle.
( 7 )
$1,034.95
Edelbrock E-Tec Cylinder Heads
Engineered for maximum performance, the new E-Tec Series aluminum cylinder heads fit all small Chevys with Vortec-style intake manifolds. They incorporate Edelbrock's new high-quench 64cc combustion chamber design, which promotes a more uniform atomization of the air/fuel mixture for increased power. Available with 170cc or 200cc intake runners, these cylinder heads are assembled with one-piece stainless steel valves, 1.46 in. valve springs, retainers, and locks. The E-Tec models accept either centerbolt or standard valve covers, and work with most exhaust manifolds and headers. Match your vehicle specs to the correct Edelbrock head for precise fitment.
( 13 )
$1,124.50
Pacific Performance Engineering LLY/LBZ/LMM Cast Iron Cylinder Heads
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
Special Offer
Moroso Street/Strip Oil Pans
Designed for street performance machines that see occasional strip use, these Moroso oil pans are modified with deep or kicked-out sumps for increased capacity and oil control under hard acceleration. With a simple bolt-on installation into most production chassis, these Moroso street/strip oil pans are perfect for the weekend warrior.
( 419 )
$1,054.86
COMP Cams Sportsman Solid Roller Lifters
COMP Cams Sportsman solid roller lifters feature premium-quality, high-value components designed for sportsman and professional racing, along with high-end street machines. They're available in both needle-bearing and bushing configurations. Each design features two pressurized EDM oil feeds, as well as an edge-orifice feed to the wheel. This delivers a more reliable oil feed than most competing options. COMP Cams Sportsman solid roller lifters are also designed with a shallower oil band than competitors' versions for increased strength and rigidity, while internal machining helps to reduce weight. The body utilizes a skirted wheel that strengthens the lifter ears, and the skirt also provides more contact area with the lifter bore for further lifter stabilization. In addition, staked axles eliminate clips and provide robust axle retention. This feature increases the stiffness of the lifter ears and helps to prevent the ears from spreading. The COMP Cams Sportsman solid roller lifters are built from 8620 premium steel for increased strength and wear resistance and they feature a captured, stainless steel link bar design. The lifters also utilize a tapered and slotted link bar tower for reduced weight and improved aesthetics. Choose the size and options tailored for your engine application.
( 9 )
$1,267.95
COMP Cams Magnum Solid Roller Cam and Lifter Kits
COMP Cams Magnum solid roller cam and lifter kits are designed for everyone from the serious street performance enthusiast to the all-out competition drag racer. Whether you're driving a street rod, show car with power accessories, a super gas, or a super competition car on alcohol, one of these kits will fit your engine's needs .
( 3 )
$1,152.95
COMP Cams Magnum Retrofit Cam and Lifter Kits
COMP Cams Magnum retrofit cam and lifter kits are designed for everyone from the serious street performance enthusiast to the all-out competition drag racer. Whether you're driving a street rod, a show car with power accessories, a super gas, or super competition car on alcohol, COMP Cams kits will fit your engine's needs.
( 10 )
$1,166.95
Innovators West Drive Pulley Conversion Kits
Innovators West drive pulley conversion kits upgrade your vehicle to an 8-rib or 10-rib drive with standard balancer—or you can switch to a 10 percent overdrive balancer. Yes, that's correct. Each Innovators West conversion kit delivers not only the pulleys, but also an SFI 18.1 stickered and stamped harmonic balancer. Your Innovators West drive pulley conversion kits may include: * Crankshaft balancer—SFI 18.1 standard or 10 percent overdrive * Power steering pulley (not included with EPS conversions) * Alternator pulley * Smooth idler pulley * Ribbed idler pulleys (included only with EPS conversions) * Ribbed tensioner pulley * Water pump pulley (10-rib conversions only)
( 4 )
$1,148.85
Manley Platinum Series Pistons
Manley Platinum Series pistons are designed to provide trouble-free installation, excellent reliability, and maximum horsepower for your application. Available in 2618 and 4032 forgings, they provide the optimum balance between strength and weight, with no grain-interrupting internal milling. The Platinum Series pistons' 2618 alloy offers maximum high-temperature strength and fatigue resistance, while the 4032 alloy is ideal for moderate-horsepower street applications. Order the style and size pistons designed for your vehicle and engine.
( 6 )
$1,080.83
Spectra Premium Oil Pans
Spectra Premium offers top-quality oil pans for a variety of applications. These oil pans are constructed to meet or exceed original equipment specifications. They feature an anti-corrosive coating to ensure long life and durability, and are 100 percent performance and fit-tested. You can count on Spectra Premium for reliable, 100 percent new quality products. Find the oil pan to match your make/model, drivetrain, and engine type.
( 18 )
$1,378.99
Enginetech Piston Sets
Enginetech specializes in providing high performance engine pistons for engine rebuilding in domestic, import, and high performance applications. Enginetech piston sets have superior size and weight grading within each set, and most are decked 0.010 in. to 0.020 in. to compensate for oversized bores and head/deck milling. Pistons are manufactured with state of the art materials to match OE requirements for cast aluminum, hypereutectic, and forged applications. Treatments such as skirt coatings, anodized heads, and Ni-resist inserts are used as required. Select the Enginetech piston set needed for your build.
Not Yet Reviewed
$1,120.99
—
$1,279.99
COMP Cams Xtreme Fuel Injection Retrofit Cam and Lifter Kits
These COMP Cams Xtreme retrofit fuel injection cam and lifter kits are designed to take advantage of the newest developments in camshaft design and to provide maximum performance in late model applications. They are ground on a 113 degree lobe separation using faster-opening and more efficient ramp profiles. COMP Cams Xtreme fuel injection cam and lifter kits include a matched set of COMP Cams High Energy lifters to maximize efficiency. Are you working with fuel injection? Get the most power out of your engine with one of these COMP Cams Xtreme fuel injection cam and lifter kits.
( 1 )
$1,215.95
COMP Cams Blower and Turbo Cam and Lifter Kits
COMP Cams blower and turbo cam and lifter kits are available in a variety of mild-to-aggressive styles. These kits work with your blower or turbo to help give your engine the most power possible!
( 1 )
$1,206.95
VEGE Remanufactured Cylinder Heads
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.
( 45 )
$1,071.99
—
$1,101.99
Enginetech Remanufactured Crank Kits
Enginetech offers remanufactured crank kits for a variety of Chevrolet, GMC, Saturn, Isuzu, Chrysler, Dodge, Jeep, Mitsubishi, Ford, Ram, Subaru, and Toyota engines from 1982 and up. These engine components include a crankshaft, along with the matching set of main and rod bearings needed to properly install and support it within the engine during a rebuild. Crankshafts convert the pistons' reciprocating motion into rotational motion, which powers the vehicle. These remanufactured models are available in forged steel, nodular iron, or cast iron—in a range of stroke and other options.
Not Yet Reviewed
$1,099.99
JE Pistons Brodix -12 15 Degree Dome Top Pistons
JE Pistons Brodix -12 15-degree dome top pistons are designed to work with most of the new 15-degree chamber designs. The race-proven hollow dome forging is the newest design for Sprint Car applications. These pistons have deep valve reliefs to accommodate oversized valves and long-duration, tight lobe separation cams. They accept 1/16, 1/16, 3/16 rings. Available in sets or individually. Select the one(s) needed.
Not Yet Reviewed
$1,099.99
