Product Description

Speed Pro Chevy 454 Hypereutectic Coated Pistons+MOLY Rings Kit 1983-90 +30

Speed Pro Hypereutectic COATED Pistons+Moly Rings for Chevrolet 454 1983-1990


About Speed Pro street series hypereutectic pistons:

Higher compression, longer life.
If you're looking for pistons with an unbeatable combination of performance and value, then Speed-Pro hypereutectic pistons are for you. These pistons are manufactured from FM244 aluminum alloy, which contains 16 percent silicon for greater strength and wear resistance. They're also molded in the latest permanent-mold technology to ensure the precise fit and tight bore clearances that today's top engine builders demand. They're ideal for use in high performance street, bracket racing, and oval track racing and will work perfectly with normal ring end gaps.

Federal Mogul/Speed Pro Piston Part

Power Range Special requirements

Compression information

Ring groove size

Pin diameter

Rod length



H518CP+30 plus a moly ring set (Perfect Circle/MAHLE) P/N H518CP-KIT - We also have other piston sizes available.

Chevrolet 454 - 4.280" bore (at +.030")

Recessed head .080" deep x 2.100" diameter with 2-valve reliefs. DurOshield skirt coated piston. Use in sets only.

1970-76 Car (USA)

1983-90 LD Truck (USA)

idle to 7000+rpm Good for street or race/nitrous to 150 shot

1.625" compression distance

5/64" 5/64" 3/16" ring grooves

.989" pin diam. - pins included

For stock length 6.135" rods

Press-fit ONLY

Stock 4.000" stroke

Sold in sets of eight (8)

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