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Stocking Pistons: Big Block Chevrolet

Open Chamber Moderate Compression Ratio
Big Block Chevy Open Chamber Low Dome Ross Racing Pistons
  • ROSS moderate compression ratio Big Block pistons listed in this section feature special hollow dome forgings for maximum strength with minimum weight.
  • Suitable for nitrous systems of 250 HP or less.
  • Pins included are .990 dia., 2.930 length, .150 wall, 149 gram weight, aircraft quality and are retained by double spiro lox or can be press fitted in rods.
  • Compression ratio is based on .050 piston to head clearance (with deck and gasket combined).
  • Ring grooves are 1/16, 1/16, 3/16.
PART #
BORE
STRK
ROD

LNGT
DOME CC
CR

w/118cc

Head
C.H.
WGT
PRICE
83762  4.280  3.760  6.135  51.0 12.0:1 1.768  648  783.95  Buy Now
83063  4.280  4.000  6.135  38.0 11.0:1 1.648  607  783.95  Buy Now
83064  4.280  4.000  6.135  36.0 10.8:1 1.648  615  783.95  Buy Now
86063  4.280  4.000  6.135  38.0 11.1:1 1.648  603  783.95  Buy Now
86762  4.310  3.760  6.135  51.0 12.0:1 1.768  661  783.95  Buy Now
86064  4.310  4.000  6.135  36.0 11.0:1 1.648  625  783.95  Buy Now
99556  4.320  4.000  6.135  36.0 11.0:1 1.648  628  783.95  Buy Now
99557  4.350  4.000  6.135  36.0 11.1:1 1.648  630  783.95  Buy Now
88764  4.375  3.760  6.135  36.0 10.6:1 1.768  685  783.95  Buy Now
88064  4.375  4.000  6.135  36.0 11.2:1 1.648  661  783.95  Buy Now
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