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.
Compression information
Ring groove size
Pin diameter
Rod length
Stroke
Deck clearance
Skirt clearance
H617CP moly ring set (Hastings/Perfect Circle/MAHLE) P/N H617CP-KIT - We have pistons in all sizes.
350 Chevy 1968-2000 .275" (11.8cc) DOME
1.560 compression distance
Compressions:
w/58cc heads 13.02:1
w/64cc heads 17.93:1
w/72cc heads 10.76:1
w/76cc heads 10.26:1
5/64" 5/64" 3/16" ring grooves
for stock length 6.135" rods
Press-fit or floating
Stock 4.000" stroke
.025" deck clr
.0010" skirt clr
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