FORGED PISTONS
Rod Length
Comp Height
Wrist Pin Type
Comp Ratio
Cubic Inch
Piston Ring Package
Part No.
Description
Stroke
4.005" Bore - Flat-Top MAH930127805 4.020" Bore - Flat-Top MAH930127820 4.030" Bore - Flat-Top SEAL2165F30
GM 604 Crate Engine, -2cc
3.480"
5.700" 1.559" P/F 10.5 @ 64cc 350 2.0mm, 1.5mm, 4.0mm
2 Reliefs, -6.8cc
3.500"
6.000" 1.250" P/F
9.8 @ 64cc 355 1.5mm, 1.5mm, 3.0mm
4 Relief, -5.4cc 2 Reliefs, -4.9cc 2 Reliefs, -5cc 4 Reliefs, -5cc 2 Reliefs, -5cc 2 Reliefs, -5cc 2 Reliefs, -5cc 2 Reliefs, -5cc 2 Reliefs, -5cc 2 Reliefs, -5.4cc 2 Relief, -3.4cc 2 Reliefs, -5cc 2 Reliefs, -5cc 4 Reliefs, -6.4cc
3.250" 3.250"
5.700" 1.671" PRESS 8.8 @ 67cc 332
5/64", 5/64", 3/16" 1/16", 1/16", 3/16"
ICNIC792.030
5.700" 1.678" P/F
9.8 @ 64cc 331
MAH930200030 † MAH930203630 † DSS8700-4030
3.480"/3.500" 5.700" 1.550" P/F 3.480"/3.500" 5.700" 1.550" P/F
9.3 @ 67cc 355 1.5mm, 1.5mm, 3.0mm 9.3 @ 67cc 355 1.5mm, 1.5mm, 3.0mm
3.480" 3.480" 3.480" 3.480" 3.480" 3.480" 3.480"
5.700" 1.560" P/F 10.37 @ 64ccc 355 5.700" 1.560" P/F 10.3 @ 64cc 355 6.000" 1.260" P/F 10.3 @ 64cc 355 6.000" 1.260" P/F 10.3 @ 64cc 355
5/64", 5/64", 3/16" 1/16", 1/16", 3/16" 1/16", 1/16", 3/16" 1/16", 1/16", 3/16"
SRP138081 SRP138085
WPTPTS505A3 † SRP271057 † WPTPTS503A3 SEAL2490NF30 MAH930200330 † SRP271056 † ICNIC9913.030 MAH930127830 WISK0002X3 WISK0003X3 DSS8705-4030
5.700" 1.560" P/F 5.700" 1.560" P/F 5.700" 1.565" P/F
9.5 @ 67cc 355 1.2mm, 1.5mm, 3.0mm
9.5 @ 67cc 355 9.7 @ 67cc 355
1/16", 1/16", 3/16" 1/16", 1/16", 3/16"
3.480"/3.500" 6.000" 1.250" P/F
9.3 @ 67cc 355 1.5mm, 1.5mm, 3.0mm 9.5 @ 67cc 355 1.2mm, 1.5mm, 3.0mm
3.480" 3.480" 3.480" 3.480" 3.480" 3.480" 3.500" 3.500" 3.500"
6.000" 1.260" P/F
5.700" 1.565" P/F 10.2 @ 64cc 355
5/64", 5/64", 3/16
GM 604 Crate Engine, -2cc
5.700" 1.559" P/F 10.5 @ 64cc 355 2.0mm, 1.5mm, 4.0mm 6.000" 1.250" P/F 10.1 @ 66cc 355 1.2mm, 1.2mm, 3.0mm 5.700" 1.550" P/F 10.1 @ 66cc 355 1.2mm, 1.2mm, 3.0mm
2 Reliefs, -5.7cc 2 Reliefs, -5.7cc E / 2 Reliefs, -5cc
6.000" 1.260" P/F 10.37 @ 64cc 355 6.000" 1.250" P/F 10.0 @ 67cc 357 6.000" 1.250" P/F 10.4 @ 64cc 357 6.000" 1.250" P/F 10.6 @ 64cc 358
5/64", 5/64", 3/16" 1/16", 1/16", 3/16" .043", .043", 3.0mm .043", .043", 3.0mm
JEP181916 JEP258028
2 Reliefs, -2cc
F.S.R. Tour Series, 2 Reliefs, -5cc Asymetrical Valve Pockets, -4cc
MAH930200330 †
2 Reliefs, -4cc, 2BBL, WISSOTA Legal, Gas Ported
MAH930202630 †
3.500"
6.000" 1.250" P/F 10.6 @ 64cc 357 1.0mm, 1.0mm, 2.0mm
MAH930200130 † BTPBC1025-030-8 †
2 Reliefs, -5cc 2 Reliefs, -6.8cc 2 Reliefs, -5cc 2 Reliefs, -5cc 2 Reliefs, -7cc 2 Reliefs, -4cc 2 Reliefs, -5cc 2 Reliefs, -7cc 2 Reliefs, -5cc E / 2 Reliefs, -5cc E / 2 Reliefs, -5cc
3.750" 3.750" 3.750" 3.750" 3.750" 3.750" 3.750" 3.750" 3.750" 3.750" 3.750"
5.700" 1.425" P/F 10.2 @ 67cc 383 1.5mm, 1.5mm, 3.0mm 6.000" 1.125" P/F 10.5 @ 64cc 383 1.5mm, 1.5mm, 3.0mm
SRP138089 SRP271055 †
5.700" 1.425" P/F 10.0 @ 67cc 383
1/16", 1/16", 3/16"
5.700" 1.425" P/F 10.2 @ 67cc 383 1.2mm, 1.5mm, 3.0mm
WPTPTS504A3 MAH930200630 † SRP268830 † WPTPTS506A3
5.700" 1.425" P/F 10.2 @ 67cc 383
1/16", 1/16", 3/16"
6.000" 1.125" P/F 10.2 @ 67cc 383 1.5mm, 1.5mm, 3.0mm 6.000" 1.125" P/F 10.2 @ 67cc 383 1.5mm, 1.5mm, 3.0mm
6.000" 1.125" P/F 10.2 @ 67cc 383 6.125" 1.125" P/F 10.6 @ 67cc 383
1/16", 1/16", 3/16" 1/16", 1/16", 3/16" 5/64", 5/64", 3/16" 5/64", 5/64", 3/16"
SRP138093
DSS8710-4030 DSS8715-4030
5.700" 1.425" P/F 6.000" 1.125" P/F
11 @ 64cc 11 @ 64cc
383 383
4.035" Bore - Flat-Top JEP258029 4.040" Bore - Flat-Top SEAL2165F40
F.S.R. Tour Series, 2 Reliefs, -5cc
3.500"
6.000" 1.250" P/F 10.4 @ 64cc 358
.043", .043", 3.0mm
2 Reliefs, -5.4cc 2 Reliefs, -5cc 2 Reliefs, -5cc 4 Reliefs, -5.4cc 2 Reliefs, -5cc 4 Reliefs, -6.4cc E / 2 Reliefs, -5cc
3.250" 3.250" 3.480" 3.480" 3.480" 3.480" 3.480" 3.480" 3.480"
5.700" 1.671" PRESS 8.8 @ 67cc 333
5/64", 5/64"", 3/16" 1/16", 1/16", 3/16" 1/16", 1/16", 3/16" 5/64", 5/64", 3/16" 1/16", 1/16", 3/16" 5/64", 5/64", 3/16" 5/64", 5/64", 3/16"
ICNIC792.040 SRP138082 SEAL2256F40
5.700" 1.678" P/F 5.700" 1.560" P/F 5.700" 1.563" P/F 6.000" 1.260" P/F
9.8 @ 64cc 333 9.3 @ 67cc 357 9.5 @ 67cc 357 9.3 @ 67cc 357
SRP138086
ICNIC9913.040 DSS8700-4040 MAH930200040 †
5.700" 1.565" P/F 10.2 @ 64cc 357 5.700" 1.560" P/F 10.37 @ 64cc 357
2 Reliefs, -5cc
5.700" 1.550" P/F 10.2 @ 67cc 357 1.5mm, 1.5mm, 3.0mm 6.000" 1.260" P/F 10.3 @ 64cc 357 1.2mm, 1.5mm, 3.0mm
SRP279480 †
Pro Series, 2 Reliefs, -5cc
MAH930203640 †
4 Reliefs, -5.5cc 2 Reliefs, -5cc 2 Reliefs, -5cc
3.480"/3.500" 5.700" 1.550" P/F 10.5 @ 64cc 357 1.0mm, 1.0mm, 2.0mm
SRP279480 †
3.480" 3.500"
6.000" 1.260" P/F 10.3 @ 64cc 422 1.2mm, 1.5mm, 3.0mm 6.000" 1.250" P/F 10.2 @ 64cc 359 1.5mm, 1.5mm, 3.0mm
MAH930200340 †
† Piston sets include piston rings. P/F - PRESS-FIT / FLOATING
41
2021-22 ENGINE BUILDER CATALOG
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