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660" Lift Dual Valve Spring Kits include everything you need to install dual springs onto a high performance LS with no machine work required
chrome or polished stainless
eliminates the need for calibration while driving
transmission and power steering applications and has been pressure tested to over 200psi
Made out of high quality cast aluminium
Chrome Moly V8 Ring Set SPE251K 030 Tyre Gauges 660" Lift Dual Valve SpringChrome Moly V8 Ring Set4. 030 Bore +. 030, 5 64"X 5 64" X 3 16", Std Tension SPE251K 030 E251K 030 Speed Pro piston rings dominate the racing industry with technically advance design, dedicated research and superior quality. We don't rely on advertised gimmicks and "trick of the week" deigns. Our rings deliver optimal cylinder sealing under true operating conditions, and provide maximum oil control. Speed Pro pistons rings deliver superior performance