Engines & Engine Parts

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...

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Trick Flow® Adjustable Pushrod Length Checker Replacement Cup-Style Ends

Trick Flow® adjustable pushrod length checker cup-style ends can be used to replace lost or damaged ends—or to convert a Trick Flow® ball end-style pushrod length checker to a measuring tool for engines that use cup-style pushrods. The ends are available to fit 5/16 in. and 3/8 in. diameter pushrods.

4.43 out of 5 stars ( 7 )

$7.99

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$10.99

PRW Pushrod Length Checkers

PRW pushrod length checkers are easy and economical tools to use to lay out and determine proper pushrod length for proper valvetrain geometry. Having the correct length pushrods in your engine is a critical factor in proper rocker arm geometry, so as to obtain the desired results from the cam and ensure damage is not done to the rest of the valvetrain. PRW's pushrod length checkers are precision crafted from quality material for years of accurate measurements. To confirm the correct length pushrods quickly, easily, and accurately, use these pushrod length checker tools from PRW.

1.0 out of 5 stars ( 1 )

$32.63

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$60.85

PRW Rocker Arm Adjuster Screws

PRW rocker arm adjuster screws are designed to thread into your rocker arm. They are made of hardened steel and feature a black oxide finish for maximum durability. The screws can be adjusted to the pushrod by using the internal Allen head and the 12-point locknut.

3.71 out of 5 stars ( 7 )

$7.06

Trick Flow® Hydraulic Lifters and Lash Adjusters

No camshaft swap is complete without a new set of lifters. Treat your engine to the "good stuff" with new Trick Flow® hydraulic lifters or lash adjusters. Featuring durable hardened steel construction, these lifters and adjusters are a must when installing new cams—and are perfect replacements for worn or ticking lifters in used engines. The retro-fit roller lifters with vertical-style link bars are designed for a roller cam conversion in engines originally equipped with a hydraulic flat tappet cam. Overhead valve engines may require different length pushrods. The sets are available in a variety of fitment options for applications from 1955 and up.

4.21 out of 5 stars ( 48 )

$16.99

PRW Power Plus Nitro-Carb Steel Rocker Arms

PRW Power Plus Nitro-Carb steel stud mount rocker arms help flex associated with OEM or aftermarket stamped rocker arms at high rpm. Gas nitride is a process is used to increase surface hardness significantly. When combined with high-grade steel rocker bodies, the result is improved durability, better lubrication and less wear on rocker arms and pushrods. The added benefit is a dramatic increase in the stability of the rocker arm when used with higher valve spring pressures. These Nitro-Carb rocker arms are an excellent choice for circle track racers looking for the extra performance "edge" when used in conjunction with other component parts. The rocker arms are designed with a long slot for 3/4 race and mild performance camshafts. OEM design elements with standard rocker arm pad meet most circle-track sanctioning body rules and regulations. Order the rocker arms for your application needs. Benefits/Characteristics: * Nitro-Carb rocker arms specifically designed for higher spring pressures and hardened pushrods * Racing or performance replacement rockers for engine rebuilds with stock or PowerPlus+ Cams * Reduced noise and slop the flex associated with worn or lesser quality stock rocker arms * Adjusting nuts and pivot balls are included where required for installation * Long slot for 3/4 race and mild performance camshaft compatibility

Not Yet Reviewed

$99.38

PRW Pro Series Stainless Steel Rocker Arms

PRW Pro Series stainless steel rocker arms are manufactured from lightweight, premium quality 17-4ph stainless steel—a superior alloy high in nickel and chromium. This rigid, premium material provides outstanding fatigue resistance, and high-yield strength to help resist deflection. These rocker arms feature full-cage, friction-reducing needle bearings, and extra-large trunnions to spread out the load and reduce wear. Each rocker body is hand-polished, assembled, and carefully inspected to deliver the finest quality available to the racing and performance industry. Reduce your valvetrain mass with durable, lightweight PRW Pro Series stainless steel rocker arms. Order the set recommended for your specific vehicle and engine size. Features, items, and specs: * Wide assortment of ratios to suit almost any cam profile * Each set of 16 comes complete with PRW RockerLocs * Stud-mount design provides plenty of clearance for large diameter springs * CNC-machined pushrod cups * Heat-treated steel nose rollers and shafts resist severity of racing and minimize scrubbing

4.0 out of 5 stars ( 5 )

$319.74

PRW Platinum Series Shaft-Mount Rocker Arms

PRW Platinum Series shaft-mount rocker arm systems fulfill the needs of successful racers and performance engine builders at every level. The Performance Quotient PQx rocker arms are made from quality alloy extrusions. These systems include CNC-machined billet steel pedestals, and ground, steel alloy rocker shafts—along with PRW SCM-4135 alloy steel fasteners, studs, and bolts. PRW Platinum Series shaft-mount rocker complete kits include all the components and hardware required for a professional installation. Order the system recommended for your specific vehicle and engine size. Features, items, and specs: * Several systems to suit many cam profiles * 8 pairs of shaft-mount rockers with adjustable cup-style valve lash adjusters * SAE 42100 full complement precision needle and cage roller bearings * Rated up to 750 lbs. open spring pressure * Internal oiling system for long-lasting performance

4.3 out of 5 stars ( 10 )

$779.24

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