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HUMMER Engines & Components
Showing In Stock Items. Show All 21 Items.
ATI Super Damper Serpentine Series Harmonic Balancers
ATI Super Damper Serpentine Series harmonic balancers are patented and feature grooves for serpentine belts machined into the outer damper shell. The dampers come with six outer grooves for standard OEM drive systems—but eight and 10 grooves are available for supercharger or turbo applications. Serpentine dampers are offered in a variety of diameters, and crank hubs may be fitted with a 6-groove serpentine pulley to drive external oil pumps or vehicle accessories. The Serpentine Series Super Dampers fit all ATI GM-front crank hubs and can be adapted to many engine combinations, providing maximum flexibility. They're available in steel or lightweight, hardcoated aluminum. Features and benefits: * Eliminates torsional crankshaft vibrations * Exceeds SFI 18.1 specs * Black zinc chromate finished * Tunable, rebuildable, and extremely efficient at all rpms * Laser-engraved 360 degree timing marks
( 243 )
$545.01
COMP Cams Ultra Gold ARC Series Aluminum Rocker Arms
Designed specifically for high performance street and race engines, COMP Cams Ultra Gold ARC Series aluminum rocker arms are precision CNC-machined to strict tolerances. They incorporate modern technology and design features to create the most advanced aluminum rocker arms available. Proven to withstand extremely aggressive spring pressure, the COMP Cams Ultra Gold ARC Series aluminum rocker arms use their CNC-machined aluminum design for high quality and the ultimate in ratio accuracy.
( 114 )
$688.95
COMP Cams Ultra Pro Magnum Rocker Arms
Utilizing years of valvetrain design experience, the latest FEA stress analysis technology, and an exhaustive testing regiment (dyno and Spintron), COMP Cams engineering team left no detail to chance. Everything from casting techniques to valve spring clearance was scrutinized to ensure that Ultra Pro Magnum rocker arms not only lived up to the lofty standards of their predecessor, but also took stud mount rocker performance, stability, and value to a whole new level. The most noticeable advancement centers around their nearly unbreakable investment cast 8650 chromoly body. The arched, web-like design delivers a nearly 29 percent increase in strength and rigidity, while reducing the moment of inertia and optimizing the dynamic balance. The resulting rockers maximize lift and valvetrain control at high rpm. The increased retainer and valve spring clearances of the new design enable the use of large-diameter valve springs, retainers, and locks, without clearance or fitment issues. The new black oxide exterior finish offers a distinctive appearance, along with long-term corrosion resistance. The COMP Cams Ultra Pro Magnum rocker arms feature an oversized trunnion and precision-sorted needle bearings designed for use with high-load valve springs. These unique rockers also feature hardened roller tips for reduced friction and elimination of the valve stem "side loading" that causes premature valve guide wear.
( 205 )
$541.95
COMP Cams LST Series Solid Roller Camshafts
COMP Cams LST Series solid roller camshafts deliver "Low Shock Technology." These LST cams feature lobe profiles designed to maximize horsepower, while improving stability at higher rpm. They're also easier on the valve springs, enhancing durability and reducing load loss. For maximum horsepower with either stock or aftermarket pistons (choose the model suited to your application), COMP Cams LST Series solid roller camshafts are an excellent option for your build.
Not Yet Reviewed
$541.95
Melling Stock Replacement Cam and Lifter Kits
Restore your engine to its true power potential with Melling's stock replacement cam and lifter kits. They're perfect for either replacement or stock rebuilds. Melling cam and liter kits also include a matched set of lifters so you won't have to worry about mismatched parts during installation.
( 21 )
$684.99
COMP Cams LSR Series Hydraulic Roller Camshafts
COMP Cams LSR Series hydraulic roller camshafts feature modern lobe profiles that take full advantage of high-flowing late model GM LS3 rectangular port cylinder heads. They are tailored for a specific rpm range and usage, from torque to high-rpm horsepower. Give your Chevy LS3 engine a shot in the arm with one of these COMP Cams LSR Series hydraulic roller camshafts.
( 26 )
$541.95
COMP Cams XFI RPM Camshafts
COMP Cams XFI RPM camshafts pull your performance set up all together. Offering the newest and quickest lobe profiles, their selection of XFI RPM cams get you the best combination of torque, horsepower, and even gas mileage (if you want) to tailor your application. Make the right choice in valvetrain technology; you have a goal and so does COMP Cams--reliable high performance!
( 16 )
$541.95
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.
( 43 )
$522.99
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$617.99
Melling Camshaft and Spring Kits
Melling cam and spring kits are designed for the perfect upgrade of your stock camshaft. Melling cam kits will provide a smooth idle, good low-end torque, excellent pulling power and come matched with a set of valve springs to help take the guess work out of picking parts for your engine. Rebuilding or upgrading your engine? Try one of these Melling cam and spring kits for maximum reliability.
Not Yet Reviewed
$660.99
COMP Cams Thumpr Hydraulic Roller Camshafts
COMP Cams has awakened the muscle car sound--and it is nastier than ever! Thumpr Series camshafts is a line of cutting-edge hydraulic roller camshafts for engines originally equipped with flat tappet cams. With them, you can expect a substantial power increase without sacrificing reliability or ease of maintenance! The lobe profile and grind characteristics of Thumpr cams include blending an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap. This maximizes rough-idling tendencies, delivering a seriously aggressive exhaust note without affecting engine power output. Thumpr camshafts are available in a variety of grind profiles, each producing impressive horsepower and torque performance within a different rpm range.
( 17 )
$541.95
COMP Cams FSL Hydraulic Roller Camshafts
COMP Cams FSL hydraulic roller camshafts offer drop-in convenience—with no valve spring changes or computer tuning required—for the LS3 engine family. The FSL cams provide proven 32 rwhp improvement without the risk of non-compliance with emissions regulations. COMP Cams FSL hydraulic roller camshafts work with stock components and a stock tune to produce an increase in peak power. Order the model designed for your vehicle/engine application.
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$541.95
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$649.95
Mahle Original OE Replacement Pistons
Mahle Original replacement pistons have the same great OE features to provide the perfect fit and function in your vehicle. They offer things like compensated ring grooves to ensure proper ring loading and oil control; as well as expansion-controlled designs for small fitting clearances—to reduce engine noise, wear, emissions, and improved oil control. Choose the model designed for your vehicle and engine application.
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$503.99
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$688.99
COMP Cams 1/2 in. Rocker Stud and Trunnion Retrofit Kits
COMP Cams 1/2 in. rocker stud and trunnion retrofit kits provide a stiffer valvetrain to achieve maximum valve motion in SBC or BBC engine applications utilizing COMP Cams Ultra Pro Magnum or Ultra Pro Magnum XD rocker arms. They were originally designed for applications competing in the NHRA Stock Eliminator class, but are a great choice for anyone whose sanctioning body's rules do not allow stud girdles. The kits feature 1/2 in. ARP rocker arm studs, 1/2 in. trunnions, 1/2 in. polylocks, new bearings, and new snap rings. They include everything required to switch over to the new studs and freshen and rebuild your rockers at the same time. The COMP Cams 1/2 in. rocker stud and trunnion retrofit kits can also be used to retrofit COMP Cam Pro Magnum or Hi-Tech stainless steel rocker arms.
Not Yet Reviewed
$542.95
COMP Cams Stage 1 LST Series Hydraulic Roller Camshafts
COMP Cams Stage 1 LST Series hydraulic roller camshafts deliver "Low Shock Technology." These LST cams feature lobe profiles designed to maximize horsepower, while improving stability at higher rpm. They're also easier on the valve springs, enhancing durability and reducing load loss. From street durability to track power, COMP Cams Stage 1 LST Series hydraulic roller camshafts are an awesome choice for your build. The cams are available for a variety of engine, piston, and engine applications.
Not Yet Reviewed
$541.95
Mahle Original OE Replacement Single Piston and Ring Kits
Mahle Original single piston and ring kits have the same great OE features to provide the perfect fit and function in your vehicle. Things like compensated ring grooves to ensure proper ring loading and oil control and expansion-controlled designs for small fitting clearances to reduce engine noise, wear, emissions, and improve oil control. They offer pistons ready for installation with mounted piston rings, with pin and clips included for the convenience of the engine builder. Whether you're repairing or restoring, you can count on the performance of Mahle Original single piston and ring kits.
Not Yet Reviewed
$512.99
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$621.99
Mahle Original Aftermarket Replacement Pistons
Mahle Original aftermarket replacement pistons have great features to provide the perfect fit and function in your vehicle. They offer things like compensated ring grooves to ensure proper ring loading and oil control; as well as expansion-controlled designs for small fitting clearances—to reduce engine noise, wear, emissions, and improved oil control. Some include hard anodized ring lands, and coatings on the skirts and crowns. Choose the model designed for your vehicle and engine application.
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$515.99
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$681.99
