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1998 GMC Engines & Components
Showing In Stock Items. Show All 22 Items.
PROMAXX Performance GM 6.5 Diesel Cylinder Heads
PROMAXX Performance designed and developed these cylinder heads from the GM 6.5 diesel casting. They are cast iron direct bolt-on replacements for your 6.5L diesel engine. The assembled heads have straight intake bolt holes in the cylinder head, and will typically use a one-piece intake manifold. Order the model recommended for your Chevy or GMC truck.
( 8 )
$538.00
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 )
$532.99
Fluidampr Harmonic Dampers
Using only three parts (a laser-welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two), SFI-approved Fluidampr harmonic dampers can control all crankshaft vibration--not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.
( 145 )
$574.82
Melling M-Select Class 1 Camshafts
Melling M-Select Class 1 camshafts are part of their full line of high performance camshafts graded from Class 1 to Class 4. Class 1 camshafts have durations of 200 to 215 degrees at .050 in. lift. They feature good idle quality with strong low-rpm torque and midrange performance. These cams will work well with stock or slightly modified engines with either manual or automatic transmissions. M-Select Class 1 camshafts may have lower vacuum than OE camshafts.
( 36 )
$647.99
COMP Cams Xtreme Energy Camshafts
COMP Cams Xtreme Energy camshafts employ the latest cam technology to provide maximum performance. Whether your use is off-roading, towing, or street performance, there's an Xtreme Energy cam available for you. By using an aggressive lobe profile, these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers—while delivering increased engine vacuum. Hundreds of models are available for fitment on vehicles from 1955 to the present. Select the cam designed for your application.
( 343 )
$549.95
On Sale
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 )
$549.95
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.
( 7 )
$505.99
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$679.99
PRW Elite Series Stainless Steel Full Roller Rocker Arms
Take your engine's performance to new heights with PRW Elite Series stainless steel full roller rocker arms, are engineered for maximum strength, speed, and precision. They are built for serious racers and performance enthusiasts who demand superior control and durability. Precision engineered with Direct Oil Feed Technology, a tight-fit nose roller axle, and E-Coated stainless steel rocker bodies, this series delivers smoother motion, increased RPM potential, and unmatched long-term reliability under extreme conditions. Features: * Rated up to 1000 lbs. open spring pressure * Direct Oil Feed Technology for enhanced lubrication and performance * 25% narrower roller reduces valve-end mass for higher RPM response * Precision-machined nose roller axle for smooth, friction-free motion * 12-Point polylocks included for secure, hassle-free installation
( 1 )
$503.16
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 )
$612.99
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$645.99
Melling Select Billet Aluminum Oil Pumps
If you are serious about building the ultimate wet sump system, then these Melling one-piece billet aluminum oil pumps with their integral screen pickup are the only way to go. These pumps not only eliminate the potential disaster of the oil pump pickup falling off, but they also offer smoother oil flow with less internal drag, resulting in an actual increase of 5 to 6 hp. Melling Select billet aluminum oil pumps will fit in your existing Moroso, Milodon, and Stef's wet sump pans, there is no need to buy a new pan or to modify your old one. Melling Select billet aluminum oil pumps offer the absolute latest in cutting-edge technology. Additional features include: * Billet aluminum housing and cover with anodized hardcoat * Standard or high volume billet spur gears * Multiple pressure settings * Chromoly driveshaft extended into the pump cover for support * Integral pickup screen assembly with stainless steel wire mesh * Robust CNC-manufactured design * Chromoly intermediate shaft, optional pressure relief springs, and instructions
( 2 )
$599.99
Hamburger's Performance Street Performance LS Swap Oil Pans
Hamburger's street performance LS swap oil pans are designed especially for installing an LS engine in classic American cars and trucks. The oil pans have a welded steel construction, along with integrated fittings built into the pan for easy hook-up to a remote oil filter system. They feature increased oil capacity for improved bearing life and engine durability, along with the added benefit of lower oil temperatures. Pans are offered in black or chrome finishes and comes with gasket, bolts, drainplug and special pick-up tube.
Not Yet Reviewed
$544.99
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$564.99
COMP Cams Xtreme Marine Camshafts
COMP Cams Xtreme Marine camshafts take advantage of the newest developments in camshaft engineering. Their aggressive lobe design produces better throttle response and top-end horsepower than other cams with the same duration at .050 in., while delivering increased engine vacuum. These cams are available for everything from pleasure boats to race applications, so you can always enjoy Xtreme performance on the water. From hydraulic and mechanical, to flat and roller tappet, COMP Cams offers camshafts for your watercraft dating as far back as the 1950s.
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$549.95
Silv-O-Lite Cast Pistons
Silv-O-Lite quality cast pistons are manufactured from cast aluminum and then machined to produce a unique diamond finish, all to exacting skirt tolerances. These OE-type pistons are heat-treated and machined for strength and durability, tighter piston-to-cylinder wall clearances, and longer piston life.
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$513.47
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$513.80
ICON Premium Forged Piston and Ring Kits
You don't need a king's ransom to rule the track, thanks to ICON premium forged piston and ring kits. They deliver high-performance racing pistons crafted from high-strength, primary aluminum alloys and matching performance piston rings. The pistons feature fully machined heads and valve ports, advanced accumulator and mini groove technology, drilled pin holes, triple-wound spiral lock rings, and their proprietary diamond-finished skirts. ICON premium forged pistons can handle the pressure and abuse from the horsepower numbers that your engine produces. If you're ready to give up your kingdom to build more horsepower with a great set of pistons--think again! The ICON premium forged pistons and ring kit best suited for your application will help you reign victorious without spending a lot of cash.
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$643.72
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$667.59
