SRP150725 - SRP PISTON 460 FITS FORD 4.390 FLAT TOP 4.140 STOKE 6.700

This piston set is forged from high silicon 4032 aluminium alloy and is treated to SRP specifications. Piston set accepts 1/16, 1/16, 3/16 rings.

Includes:

• Spiro Lock: 990-042-CS
• Straight Wall Pin: 990-2930-15-51S(150g)
• Pin fitting

Specifications :

• Part #: SRP150725
• CID: 501
• Bore: 4.390
• Stroke: 4.140
• Rod Length: 6.700
• Compression Height: 1.520
• Compression Ratio with 72cc chamber volume: 12.5
• Compression Ratio with 80cc chamber volume: 11.7
• Compression Ratio with 84cc chamber volume: 10.8
• Dome Volume: -3.0cc
• Gram Weight: 602
• Footnote: .990 wrist pin
• Oversize: .030
• Recommended Ring Set (Check Proseal listing to determine oil ring tension): S100S8-4390-5

SRP Pistons was founded in 1997 by JE Pistons, the world's largest manufacturer of forged racing pistons. The idea was simple, to create a high quality forged piston at an affordable price. Every SRP forging was created with quality, performance and affordability in mind. By designing dedicated forgings, the pistons became both lighter and stronger while machining time and scrap aluminium were drastically reduced. These factors have reduced the price of SRP Pistons and contributed to their success. Today, over 400 different piston part numbers comprise the SRP product lineup, including Chevy, Ford, Chrysler, Honda and more.