FORGED PISTONS
Chevrolet Small Block LS Series
Comp Ht.
Wrist Pin Type
Comp Ratio
Cubic Inch
Piston Ring Package
Part No.
Description
Stroke Rod Length
Chevrolet LS-Series - 3.800" Bore - Flat Top WISK474M965 NA/Boost/Nitrous, 2 Reliefs, -2.2cc, LS1/LS2/LS6 .927" Pin Dia. 4.000" 6.098"/6.125" 1.300" Chevrolet LS Series - 3.898" Bore - Flat Top MAH930217698* 2 Reliefs, -4cc 3.622" 6.098" 1.340" P/F Chevrolet LS Series - 3.905" Bore - Flat Top BTPBLS1112-007-8 2 Reliefs, -2.7cc 3.622" 6.125" 1.305" P/F P/F Chevrolet LS Series - 3.905" Bore - Dish Top BTPBLS1001-007-8 Dished, 2 Reliefs, -4.1cc 3.622" 6.125" 1.300" Chevrolet LS Series - 3.908" Bore - Flat Top MAH930217608* 2 Reliefs, -4cc 3.622" 6.098" 1.340" P/F Chevrolet LS Series - 4.000" Bore - Flat Top MAH930217700* 2 Reliefs, -4cc 3.622" 6.098" 1.340" P/F P/F Chevrolet LS-Series - 4.000" Bore - Dish Top DSS1823BSX-4000 SX / Dished, -15cc, LS2 3.622" 6.125" 1.305" Chevrolet LS Series - 4.005" Bore - Dish Top WISK444X05 Dished, 2 Reliefs, -11cc, LS1/LS2/LS3/LS6/L92 3.622" 6.098" 1.300" Chevrolet LS Series - 4.005" Bore - Flat Top BTPBLS1011-005-8 2 Reliefs, -2.7cc 3.622" 6.125" 1.300" Chevrolet LS Series - 4.030" Bore - Dish Top BTPBLS1118-030-8 Dished, 2 Reliefs, -13cc 3.622" 6.125" 1.300" P/F P/F P/F BTPBLS1004-005-8 Dished, 2 Reliefs, -27.8cc 4.000" 6.125" 1.110" P/F P/F BTPBLS1010-005-8 2 Reliefs, -2.7cc 4.000" 6.125" 1.110" MAH930217605* 2 Reliefs, -4cc, LS1/LS2/LS6 3.622" 6.098" 6.098" 6.125" 1.340" 1.304" 1.110" P/F P/F P/F WISK398X3905 2 Reliefs, -3.2cc,LS1/LS2/LS3/LS6/L92 3.622" BTPBLS1009-007-8 2 Reliefs, -2.7cc 4.000" DSS1830BSX-4000 SX / 2 Reliefs, -5cc, LS2 3.622" 6.100" 1.330"
9.8 @ 66cc 5.3L/327 1/16". 1/16", 3.0mm
10.4 @ 67cc
346
1.5mm, 1.5mm, 3.0mm
10.2 @ 64cc 10.1 @ 64cc 9.9 @ 67cc 11.1 @ 64cc
347 347 347 383
1.5mm, 1.5mm, 3.0mm 1.5mm, 1.5mm, 3.0mm 1.2mm, 1.2mm, 3.0mm 1.5mm, 1.5mm, 3.0mm
9.9 @ 64cc
347
1.5mm, 1.5mm, 3.0mm
10.4 @ 67cc
348
1.5mm, 1.5mm, 3.0mm
10.5 @ 67cc
364 364
1.5mm, 1.5mm, 3.0mm 1.5mm, 1.5mm, 3.0mm
P/F 10.57 @ 64cc
9.48 @ 64cc
364
1.5mm, 1.5mm, 3.0mm
9.6 @ 67cc 9.0 @ 64cc
365 403
1.2mm, 1.2mm, 3.0mm 1.5mm, 1.5mm, 3.0mm
10.2 @ 64cc 11.5 @ 64cc
365 403
1.5mm, 1.5mm, 3.0mm 1.5mm, 1.5mm, 3.0mm
P/F P/F P/F
9.5 @ 64cc 10.3 @ 64cc 10.7 @ 67cc
370 408 408
1.5mm, 1.5mm, 3.0mm 1.5mm, 1.5mm, 3.0mm 1.2mm, 1.2mm, 3.0mm
BTPBLS1007-030-8
Dished, 2 Reliefs, -13.4cc Dished, 2 Reliefs, -8cc LS1/LS2/LS3/LS6/L92
4.000" 4.000"
6.125" 6.125"
1.110" 1.115"
WISK394X3
Chevrolet LS Series - 4.030" Bore - Flat Top DSS1820BSX-4030 SX / 2 Reliefs, -5cc, LS2 3.622" 6.125" 1.305"
P/F 10.57 @ 64cc P/F 10.57 @ 64cc
364 364 370
1.5mm, 1.5mm, 3.0mm 1.5mm, 1.5mm, 3.0mm 1.5mm, 1.5mm, 3.0mm
DSS1830BSX-4030 MAH930217730*
SX / 2 Reliefs, -5cc, LS2 2 Reliefs, -4cc, LS1/LS2/LS6
3.622" 3.622"
6.100" 6.098"
1.330" 1.340"
P/F
10.1 @ 64cc
NA/Boost/Nitrous, 2 Reliefs, -3.2cc, LS1/LS2/LS6/L92 .927" Pin Dia.
WISK398X3*
3.622" 6.098"/6.125" 1.304"
P/F
10.7 @ 65cc 365/370 1.2mm, 1.2mm, 3.0mm
DSS1920BSX-4030 BTPBLS1111-030-8
SX / 2 Reliefs, -5cc, LS2
4.000" 4.000"
6.125" 6.125"
1.115" 1.110"
P/F 11.85 @ 64cc
402 408
1.5mm, 1.5mm, 3.0mm 1.5mm, 1.5mm, 3.0mm
2 Reliefs, -2.7cc
P/F
11.6 @ 64cc
Chevrolet LS Series - 4.065" Bore - Flat Top MAH930223065* 2 Reliefs, -4cc, LS3/L92 3.622" 6.098" 1.340" P/F Chevrolet LS Series - 4.070" Bore - Dish Top DIA11555-R1-8 4.000" 6.125" 1.115" P/F Chevrolet LS Series - 4.070" Bore - Flat Top MAH930223070* 2 Reliefs, -4cc, LS3/L92 3.622" 6.098" 1.340" P/F DSS1920CSX-4065 SX / 2 Reliefs, -5cc, LS2 4.000" 6.125" 1.115" P/F Dished, 2 Reliefs, -22.5cc, LSX/L92 Chevrolet LS-Series - 4.075" Bore - Flat Top MAH930223075* 2 Reliefs, -4cc, LS3/L92 3.622" 6.098" 1.340" P/F Chevrolet LS Series - 4.125" Bore - Dish Top DIA11577-R1-8 Dished, -28cc, LS1 4.000" 6.125" 1.115" P/F Chevrolet LS Series - 4.130" Bore - Flat Top DIA11581-R1-8 2 Reliefs, -3.84cc, LS7 4.000" 6.077" 1.163" P/F WISK398X7* NA/Boost/Nitrous, 2 Reliefs, -3.2cc, LS1/LS2/LS6/L92, .927" Pin Dia. 3.622" 6.098"/6.125" 1.304" P/F
10.1 @ 70cc 12 @ 64cc
376 415
1.5mm, 1.5mm, 3.0mm 1.5mm, 1.5mm, 3.0mm
9.1 @ 70cc
416
1.5mm, 1.5mm, 3.0mm
10.1 @ 70cc
377
1.5mm, 1.5mm, 3.0mm
10.7 @ 65cc 370/377 1.2mm, 1.2mm, 3.0mm
10.2 @ 70cc
378
1.5mm, 1.5mm, 3.0mm
9.1 @ 70cc
428
1.5mm, 1.5mm, 3.0mm
11:1 @ 72cc 12.3 @ 64cc
429 429
1.2mm, 1.2mm, 3.0mm .043", 1.5mm, 3.0mm
MAH930221530*
2 Reliefs, -3cc, LS7
4.000"
6.067"
1.181"
P/F
Chevrolet LS-Series - 4.185" Bore - Dish Top DSS2943DX-4185 GSX / Dished, -29cc, LS7 4.125" 6.125" 1.052"
P/F
9.83 @ 64cc
441
1.5mm, 1.5mm, 3.0mm
* Piston sets include piston rings. P/F - PRESS-FIT / FLOATING
2018 ENGINE BUILDER CATALOG
53
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