FORGED PISTONS
Chevrolet Big Block
Rod Length
Comp. Height
Wrist Pin Type
Comp Ratio
Cubic Inch
PistonRing Package
Part No.
Description
Stroke
4.610" Bore—Dome-Top MAH930239310
Dome, + 47.1cc Dome, + 47.1cc Dome, + 47.0cc Dome, + 47.1cc Dome, + 40.0cc Dome, + 42.0cc Dome, + 45.0cc Dome, + 43.0cc
4.250" 6.385" 1.270" 4.250" 6.535" 1.120" 4.375" 6.535" 1.060" 4.375" 6.385" 1.215" 4.375" 6.535" 1.060" 4.500" 6.800" 1.120" 4.500" 6.385" 1.155" 4.625" 6.800" 1.060"
P/F P/F P/F P/F P/F P/F P/F P/F
15.2 @ 118cc 568 .043", .043", 3.0mm 15.2 @118cc 568 .043", .043", 3.0mm 15.6 @118cc 584 .043", .043", 3.0mm 15.6 @118cc 584 .043", .043", 3.0mm 14.4 @ 118cc 584 .043", .043", 3.0mm 15.2 @ 118cc 634 .043", .043", 3.0mm 15.7 @ 118cc 601 .043", .043", 3.0mm 15.6 @118cc 618 .043", .043", 3.0mm
MAH930239510 MAH930239610 MAH930239410 MAH930239010 MAH930239110 MAH930239210
JEP243328
HYPEREUTECTIC PISTONS
Chevrolet Big Block
Comp. Height
Wrist Pin Type
Comp Ratio
Cubic Inch
Piston Ring Package
Part No.
Description
Stroke
396-402 w/ 4.125" Bore - Dome-Top KBPKB160.STD Dome, +17cc 396-402 w/ 4.155" Bore - Dome-Top KBPKB160.030 Dome, +17cc 396-402 w/ 4.165" Bore - Dome-Top KBPKB160.040 Dome, +17cc 396-402 w/ 4.185" Bore - Dome-Top KBPKB160.060 Dome, +17cc 427-454 w/ 4.250" Bore - Dome-Top KBPKB257.STD Dome, +26cc 427-454 w/ 4.280" Bore - Dome-Top KBPKB176.030 Dome, +17cc
3.760"
1.765"
P/F
8.2 @ 118cc 402 5/64", 5/64", 3/16"
3.760"
1.765"
P/F
8.3 @ 118cc 408 5/64", 5/64", 3/16"
3.760"
1.765"
P/F
8.5 @ 118cc 409 5/64", 5/64", 3/16"
4.125"
1.765"
P/F
8.5 @ 119cc 414 5/64", 5/64", 3/16"
4.000"
1.645"
P/F
9.8 @ 118cc 454 5/64", 5/64", 3/16"
3.760" 4.000" 4.000" 4.000" 3.760"
1.765" 1.645" 1.540" 1.640" 1.765"
P/F P/F P/F P/F P/F
9.1 @ 119cc 430 5/64", 5/64", 3/16" 9.1 @ 119cc 460 5/64", 5/64", 3/16" 8.6 @ 116cc 461 5/64", 5/64", 3/16" 10.3 @ 119cc 430 5/64", 5/64", 3/16" 9.7 @ 119cc 430 5/64", 5/64", 3/16"
KBPKB203.030 SEAH426CP30 SEAH693CP30 KBPKB227.030
Dome, +12cc Dome, +10.5cc Dome, +22cc Dome, +26cc
427-454 w/ 4.280" Bore - Flat-Top SEAH661CP30 2 Reliefs, -5cc
4.000" 4.000"
1.625" 1.645"
PRESS 7.7 @ 118cc 460 5/64", 5/64", 3/16"
KBPKB202.030
1 Relief, -3cc
P/F
8.2 @ 119cc 460 5/64", 5/64", 3/16"
427-454 w/ 4.290" Bore - Flat-Top SEAH661CP40 2 Reliefs, -5cc 427-454 w/ 4.290" Bore - Dome-Top KBPKB203.040 Dome, +12cc 427-454 w/4.310" Bore - Flat-Top SEAH661CP60 2 Reliefs, -5cc
4.000"
1.625"
PRESS 7.7 @ 118cc 463 5/64", 5/64", 3/16"
4.000"
1.645"
P/F
9.1 @ 119cc 463 5/64", 5/64", 3/16"
4.000" 3.760" 4.000" 4.000" 4.000"
1.625" 1.765" 1.646" 1.640" 1.640"
PRESS 7.8 @ 118cc 467 5/64", 5/64", 3/16"
KBPKB176.060 KBPKB257.060 SEAH426CP60 SEAH693CP60
Dome, +17cc Dome, +26cc Dome, +10.5cc Dome, +20cc
P/F P/F P/F P/F
9.0 @ 119cc 434 5/64", 5/64", 3/16" 10.2 @ 119cc 467 5/64", 5/64", 3/16" 8.7 @ 116cc 467 5/64", 5/64", 3/16" 10.4 @ 119cc 467 5/64", 5/64", 3/16"
427-454 w/4.320" Bore - Dome-Top KBPKB203.070 Dome, +12cc
4.000"
1.645"
P/F
9.1 @ 119cc 469 5/64", 5/64", 3/16"
203
2021-22 ENGINE BUILDER CATALOG
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