Main >> Pistons >> Ross >> Automotive Stocking Pistons >> High Comp Ratio

Comp Ratio base on: .050 piston to head clear. (deck & gasket) Block Height: 302=8.206, 351=9.480 Forced Induction: Yes - up to 250 HP Nitrous: Yes - up to 250 HP Pins: as indicated Ring Grooves: 1/16, 1/16, 3/16 Ford Windsor 302, 351 High Compression Includes: Pistons, Pins, Spiro Lox ROSS Ford Windsor Pistons in this section are suitable for nitrous systems below 250 horsepower. Ring grooves are 1/16, 1/16, 3/16. Compression ratio based on .050 total piston to head clearance (deck and gasket). Dome style "F" fits stock Windsor and Motorsports J302 (AR) heads. Dome style "A" fits TFS high port "Street Heat" heads. Pins retained by double spiro lox or can be press fitted in rods. 302 BLOCK HEIGHT = 8.200 351 BLOCK HEIGHT = 9.480

BLK Bore Stroke Rod Length Dome CC Pin Dia C.H.  Weight Notes Part # Price/Set 302  4.030  3.400  5.400  11.000  0.927  1.085  447  1,2 99607 $629 351  4.030  3.500  5.956  12.000  0.912  1.757  570  3 80551 $572 Notes: (when applicable) Price includes Oil Ring Support Rails Will work with TFS High Port "Street Heat" Heads Will work with stock Windsor and Motorsports J302 (AR) Heads

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