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Stocking Pistons: Big Block Chevrolet

Closed Chamber High Compression Ratio
Big Block Chevy Closed Chamber Dome Pistons
  • Ross high compression ratio Big Block pistons listed in this section feature special hollow dome forgings for maximum strength with minimum weight.
  • Designed for intake valves up to 2.300 dia. and exhaust valves up to 2.050 dia.
  • Suitable for nitrous systems of 150 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).
  • Ring grooves are 1/16, 1/16, 3/16.
PART #
ENG
BORE
STRK
ROD

LNGTH
DOME

CC
CR w/112cc head
C.H.
WGT
PRICE
83764  427  4.280  3.760  6.135  36.0  11.1:1 1.768  637  783.95  Buy Now
86764  427  4.310  3.760  6.135  36.0  11.2:1 1.768  657  783.95  Buy Now
88764  427  4.375  3.760  6.135  36.0  11.5:1 1.768  685  783.95  Buy Now
82011  454  4.280  4.000  6.385  36.0  11.7:1 1.398  563  783.95  Buy Now
83064  454  4.280  4.000  6.135  36.0  11.7:1 1.648  615  783.95  Buy Now
82012  454  4.310  4.000  6.385  36.0  11.9:1 1.398  574  783.95  Buy Now
86064  454  4.310  4.000  6.135  36.0  11.9:1 1.648  625  783.95  Buy Now
99556  454  4.320  4.000  6.135  36.0  11.9:1 1.648  628  783.95  Buy Now
99557  454  4.350  4.000  6.135  36.0  12.0:1 1.648  630  783.95  Buy Now
88064  454  4.375  4.000  6.135  36.0  12.2:1 1.648  661  783.95  Buy Now
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