Engines & Components
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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...
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 daily driver.
Half Scale Dragsters has what you need to service your junior dragster, including these oil drain kits. These oil drain kits make changing oil in your Jr. Dragster engine a breeze. The nozzle has an innovative rotating design, which allows you to quickly and neatly change the oil, and without making a complete mess.
Not Yet Reviewed
$29.99
Give your Jr. Dragster "pilot" a head start with Half Scale Dragsters Polar Max clutch belts. They feature a denser rubber compound, a low-profile, bottom-cog design, and a top cog designed to provide longer belt life, increased contact area, and less resistance to rotating. If you want to build a durable, more reliable clutch system for your junior dragster, do it with quality Polar Max clutch components from Half Scale Dragster!
Not Yet Reviewed
$50.99
Whether for bracket-style or heads-up-style racing—or for getting junior into their first dragster—Half Scale has the right components, like these Polar Outlaw clutch belts. They feature a denser rubber compound construction with a low-profile bottom-cog and a top-cog designed for longer belt life, increased contact area, and less resistance to rotating. Build a better dragster and help your favorite Jr. racer turn their dreams into a reality with Half Scale Polar Outlaw clutch belts!
Not Yet Reviewed
$49.99
Half Scale Dragsters oil plugs have a 5/8 in. thread size, which is a great fit for a Jr. Dragster engine. They come in two configurations--regular for the standard oil plug, and a vented style--so you can screw a fitting in for a breather tank.
Not Yet Reviewed
$21.99
Half Scale Dragsters crank spacers help restore proper clutch alignment with the right fit, form, and function for your racer. They feature high-quality materials and design requirements that ensure an easy installation and dependable operation. Gain the advantage by maintaining optimum performance with proper maintenance and quality parts like Half Scale Dragsters crank spacers.
Not Yet Reviewed
$19.99
A sheared crankshaft key can cause a lot of damage if it goes unnoticed. Half Scale Dragsters crankshaft keys are tailor-made to keep your crank solidly connected. Prevent your flywheel or timing gear from free-wheeling and damaging your engine with quality steel replacement keys from Half Scale Dragsters.
( 1 )
$4.99
Half Scale Dragsters valve springs deliver the fit and performance needed. Every component of your engine needs to be of the best quality to produce power efficiently, and your valve springs, even though small, are vital in that winning equation. Pair your valves with Half Scale Dragsters valve springs for a successful solution.
Not Yet Reviewed
$11.99
Half Scale Dragsters pushrods keep your engine running. These assembled replacements are just like the original rods in your Briggs. Make your rebuild a success with the right parts from Half Scale Dragsters.
Not Yet Reviewed
$17.99
Half Scale Dragsters LO206 sealed short block engines are hand-built in Milwaukee, WI using tooling and dies specifically for racing to give you unparalleled repeatability. Designed for a quick rebuild or a base to start your build from, the short blocks are factory-sealed to meet sanctioning standards. Features: * Dual ball-bearing * Racing reinforced cylinder squeeze-cast * T-7 treated racing rod ground cam with compression release high-silicon valve springs * Carbon steel racing crankshaft with induction-hardened crankpin * Ground, barrel-faced piston * Goetze performance piston ring set * Chrome-aced top ring
Not Yet Reviewed
$489.99
Summit Bucks
ACDelco GM engine oil dipsticks provide a convenient way to accurately measure your oil capacity scale. These genuine OE GM parts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Stay with the parts brand your GM vehicle came with and get the quality you know and trust, choose GM OE engine components by ACDelco.
( 2 )
$27.99
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$66.99
These COMP Cams Hi-Tech 210 degree pushrods were specifically designed for high-lift applications where pushrod and seat interference are problems at maximum lift. They're heat-treated to a minimum hardness of 60 on the Rockwell C scale, for the ultimate in strength. COMP Cams even gives them a black oxide finish and imprints the length and part number on them. In addition, they feature a 210 degree radius, rather than the standard 180 degree radius, so they'll work great with rocker arms that feature cup-type adjusters and applications requiring more load-bearing surface from the pushrod. If you are building a high-horsepower, high-rpm, high-lift camshaft engine, then you need to use these COMP Cams Hi-Tech 210 degree pushrods for maximum reliability.
( 7 )
$18.95
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$286.95
March Performance Ultra Series mid-mount serpentine kits are compact pulley and bracket sets that offer your ride a clean, one-belt look. There are numerous optional features with each kit, including A/C and power steering adaptability. Like all their kits, March Performance Ultra Series mid-mount serpentine sets are developed with superior styling in mind—styling that shows through where it's important: your vehicle's engine bay. Order the kit recommended for your specific vehicle and engine size. Why the pros choose March: * All brackets and pulleys have clear powdercoatings that eliminate polishing in those hard-to-reach places * Brackets are made of 6061-T6 aircraft-grade aluminum, 100 percent thicker than similar products, and far superior than cast brackets * Precision CNC-machined systems provide perfect fits and run true, leaving no need for adjustable brackets * No need to drill holes in your heads * High water flow ratios * Reduced belt slippage * Eliminates belt-tossing * All high-wear surfaces are hardened to 65 Rockwell C scale (harder than steel; two times harder than forged aluminum)
Not Yet Reviewed
$793.99
In the valvetrain, lighter weight means more revs. More revs mean more power. Crower's Super 7-degree titanium valve spring retainers will lighten your valvetrain and let you make that extra power you need. These retainers are made from Ti-17 titanium, which rates 6 to 7 points harder on the RC scale than the traditional 6AL4V titanium found in all competing brands.
Not Yet Reviewed
$30.99
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$417.99
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