Performance Engine Parts & Components at JM Auto Racing

There's no doubt that bolt-on mods like cold air intakes and cat-back exhausts add horsepower, but these are only incremental improvements. When you want a substantial boost in power, you have to roll up your sleeves and get inside your engine. High-lift camshafts, high-flow cylinder heads, turbochargers, and superchargers will all provide significant increases. Browse our selection of these and other performance engine parts and start smoking the tires.

As you can see, we offer everything you need to not only make more power, but to improve durability as well, with stronger than stock connecting rods, crankshafts, and pistons. You can do the work yourself with our selection of engine rebuild kits, gasket sets, bearings, piston rings, and timing sets, or give your car or truck a heart transplant with a complete high-performance engine. These precision-built mills deliver dyno-proven horsepower gains.

High-performance camshafts will open valves farther and make them stay open longer to fill the cylinders with more of the air/fuel mixture. High-flow cylinder heads have bigger ports that are smoothly contoured for better flow, with bigger valves that allow more flow into the combustion chamber, and they come with stronger valve springs that prevent valve float at high RPM. Turbochargers and superchargers force more air into the engine, where it can be mixed with fuel for a serious horsepower increase, the kind that can't be realized with any other type of engine modification.

Upping the pony count puts a lot more stress on engine components, so we also have the products that help your engine bear the load. Our performance oil pumps will ensure bearings and other components get the pressure and volume of oil they need. Oil filter relocation kits will allow you to run a larger filter or multiple filters to trap contaminants and keep that oil clean, and oil coolers will help rid your engine of excessive heat. Performance valvetrain components can withstand the stress from high-lift cams and stiff valve springs, while performance timing chains and gears keep all those parts in sync.

After you spend all that time and dough on your ferocious powerplant, we're betting you'll want to show it off, so we have the motor mounts to support it, and the goodies to dress it up. A chrome timing cover, dipstick tube, and dipstick handle will add the prerequisite bling, while a chrome and finned oil pan will provide underside shine and a bit of cooling help as well. But it's the very top of your mill that will catch the eye first, so go first class with custom valve covers. We have the traditional chrome, but also black wrinkle finish with logos, and painted with machined fins.

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