Sportsman Racing Products Piston and Ring Professional Series Forged 4 271065

Sportsman Racing Products Piston and Ring Professional Series Forged 4

SRP ProfessionalSeries Pistons

SRP Professional pistonsinclude features used inprofessional racing such aslightweight forged siderelief (FSR) forgings, highquality wrist pins, and CNCmachined ring grooves andskirts. In addition, everypackage includes JE Pro SealPremium Piston Rings. Theincluded ring set features a1.2 premium steel top ring,1.5 Napier (hooked face)second ring and 3.0mmstandardtension oil ring. Everypiston is designed andmanufactured in the USA atthe advanced JE/SRP pistonmanufacturing center.

Includes:

• Wire Lock: 927-073-MW
• Straight Wall Pin:927-2250-15-51C (106g)

Specifications:

• Part #: SRP271065
• CID: 406, 377
• Bore: 4.155
• Stroke:3.750 (406), 3.480 (377)
• Rod Length: 6.000 (406),6.125 (377)
• Compression Height: 1.125
• Compression Ratio with58cc chamber volume: 11.7(377), 12.5 (406)
• Compression Ratio with 64ccchamber volume: 10.8 (377),11.6 (406)
• Compression Ratio with 70ccchamber volume: 10.1 (377),10.9 (406)
• DomeVolume: -5.0cc
• GramWeight: 405
• Footnote:.927 Pin Diameter
• Oversize: .030
• Recommended Ring Set (CheckProseal listing to determineoil ring tension):JG31F8-4155-2

SRPPistons was founded in 1997by JE Pistons, the world'slargest manufacturer offorged racing pistons. Theidea was simple, to create ahigh quality forged piston atan affordable price. EverySRP forging was created withquality, performance andaffordability in mind. Bydesigning dedicated forgings,the pistons became bothlighter and stronger whilemachining time and scrapaluminium were drasticallyreduced. These factors havereduced the price of SRPPistons and contributed totheir success. Today, over400 different piston partnumbers comprise the SRPproduct line-up, includingChevy, Ford, Chrysler, Hondaand more.