AC 427 Engines & Components

Proform GM Licensed Slant Edge Valve Covers

Give your engine an aggressive, custom look with a pair of GM licensed slant edge valve covers by Proform. The diagonal cut of the top section ensures no mess, and the bottom lip will give a tight seal. Each of these valve covers is designed to clear roller rockers and stud girdles. They're available in a variety of styles and finishes for applications from the 1950s and up.

4.74 out of 5 stars ( 231 )

$408.99

Fel-Pro Harmonic Balancer Repair Sleeves

Fel-Pro harmonic balancer repair sleeves are designed to prevent the leaks associated with your timing cover seal. These handy service accessories are made of steel and will help seal the gaps caused by worn-out harmonic balancer shafts. The sleeves are available for thousands of vehicle and engine family applications.

4.89 out of 5 stars ( 35 )

$12.99

K&N Select Oil Filters

K&N Select Oil Filters have been specially designed for professional installers and service providers. Their high-flow design can help to improve engine performance by reducing oil filter restriction. The filters have a fluted canister shape so they can be removed with a traditional oil filter wrench commonly available to commercial installers. These Select Oil Filters provide outstanding filtration and engine protection throughout their service life. They are engineered to handle all grades of synthetic, conventional, and blended motor oils. The pleated media provides high capacity, making them suitable for extended oil change intervals (when used in accordance with the vehicle and motor oil manufacturers' recommendation). K&N Select Oil Filters are available for canister and cartridge type oil filter applications. They're offered in a variety of heights, outside diameters, and thread sizes. Some models include a filter bypass relief valve and/or anti-drainback valve.

4.0 out of 5 stars ( 1 )

$11.99

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.

4.65 out of 5 stars ( 23 )

$846.28

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$846.99

ICON Premium Forged Pistons

ICON premium forged pistons are made from high-strength, heat-treated aluminum alloy. They feature a diamond-machined skirt, head, mini-grooves, pin bore, gas accumulator, ring grooves, and pressure-drilled pin hole oiling. The pistons have a V-rib design for light weight, strength, and maximum piston cooling. Compare weight, performance, design, and cost—and you will win with ICON!

4.79 out of 5 stars ( 43 )

$736.93