SPEED PRO Hypereutectic Flat Top Pistons/8+MOLY Rings FLOATING Chevy BB 454 030

This item is for eight (8) .030 over bore Speed Pro (Sealed Power) hypereutectic flat top pistons and a moly piston ring set (Hastings/MAHLE) for Chevrolet 454ci (7.4L) big block V-8 engines. P/N (8) H625CP-030 + 2M683-030.

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 aluminum alloy that 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. Hypereutectic pistons are ideal for use in high performance street, bracket, and oval track racing—and will work perfectly with normal ring end gaps.

PISTON SPECIFICATIONS

• Bore: 4.280 in. (at .030 bore)
• Stroke: 4.000 in. (stock)
• Connecting Rod Length: 6.135 in. (stock); rods NOT included
• Piston Top Style: Flat top with 2-valve reliefs
• Piston Head Volume: +2.00cc
• Compression Height: 1.640 in.
• Piston Material: Hypereutectic aluminum
• Wrist Pin Diameter: .989 in.; pins included
• Wrist Pin Style: Press-fit or floating; pin clips not included
• Ring Land Sizes: 5/64-5/64-3/16 (oil ring); rings included
• Notes: DurOshield coated skirts
• Usage: Street and mild strip; up to 75HP nitrous
• RPM Range: Idle - 6,000
• Compression Ratio (approximate): 8.9:1 w/100.9cc; 8.4:1 w/109.4cc; 7.9:1 w/119cc