Forged PISTONS for 420 / 434 Stroker

 
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Small Block Chevy 420 / 434 Stroker

SBC 420 / 434 - 4.125 STD Bore

Available Bore Sizes: 4.125,4.155,4.165,4.185

Add the Bore size to the end of the part # IE. 8140-4155 for a 4.155 bore size

Series CID Stroke Rod Length Pin Height Pin Size Ring Sizes Piston Top Compression Ratio Alloy Pistons Piston and Ring Kits
SX 420 3.875" 5.700" 1.362" .927 1/16-1/16-3/16" -5cc Flat Top 58cc-12.83, 64cc-11.91, 70cc-11.13 4032 8140 K8140
SX 420 3.875" 5.700" 1.362" .927 1/16-1/16-3/16" -16cc Dish Top 58cc-11.25, 64cc-10.56, 70cc-9.96 4032 8143 K8143
SX 420 3.875" 5.700" 1.362" .927 1/16-1/16-3/16" -21cc Dish Top 58cc-10.67, 64cc-10.05, 70cc-9.51 4032 8145 K8145
SX 420 3.875" 5.700" 1.362" .927 1/16-1/16-3/16" -28cc Dish Top 58cc-9.96, 64cc-9.42, 70cc-8.95 4032 8146 K8146
SX 420 3.875" 5.700" 1.362" .927 1/16-1/16-3/16" +4cc Dome Top 58cc-14.52, 64cc-13.34, 70cc-12.35 4032 8147 K8147
SX 420 3.875" 6.000" 1.062" .927 1/16-1/16-3/16" -5cc Flat Top 58cc-12.83, 64cc-11.91, 70cc-11.13 4032 8150 K8150
SX 420 3.875" 6.000" 1.062" .927 1/16-1/16-3/16" -16cc Dish Top 58cc-11.25, 64cc-10.56, 70cc-9.96 4032 8153 K8153
SX 420 3.875" 6.000" 1.062" .927 1/16-1/16-3/16" -21cc Dish Top 58cc-10.67, 64cc-10.05, 70cc-9.51 4032 8155 K8155
SX 420 3.875" 6.000" 1.062" .927 1/16-1/16-3/16" -28cc Dish Top 58cc-9.96, 64cc-9.42, 70cc-8.95 4032 8156 K8156
SX 420 3.875" 6.000" 1.062" .927 1/16-1/16-3/16" +4cc Dome Top 58cc-14.52, 64cc-13.34, 70cc-12.35 4032 8157 K8157
SX 434 4.000" 6.000" 1.000" .927 1/16-1/16-3/16" -5cc Flat Top 58cc-13.21, 64cc-12.27, 70cc-11.46 4032 8180 K8180
SX 434 4.000" 6.000" 1.000" .927 1/16-1/16-3/16" -16cc Dish Top 58cc-11.59, 64cc-10.87, 70cc-10.24 4032 8183 K8183
SX 434 4.000" 6.000" 1.000" .927 1/16-1/16-3/16" -21cc Dish Top 58cc-10.98, 64cc-10.34, 70cc-9.78 4032 8185 K8185
1-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.83, 64cc-11.91, 70cc-11.13 4032 1-2450 K1-2450
2-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.83, 64cc-11.91, 70cc-11.13 2618 2-2450 K2-2450
3-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.83, 64cc-11.91, 70cc-11.13 2618 3-2450 K3-2450
1-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM -16cc Dish Top 58cc-11.25, 64cc-10.56, 70cc-9.96 4032 1-2453 K1-2453
2-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM -16cc Dish Top 58cc-11.25, 64cc-10.56, 70cc-9.96 2618 2-2453 K2-2453
3-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM -16cc Dish Top 58cc-11.25, 64cc-10.56, 70cc-9.96 2618 3-2453 K3-2453
1-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.67, 64cc-10.05, 70cc-9.51 4032 1-2455 K1-2455
2-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.67, 64cc-10.05, 70cc-9.51 2618 2-2455 K2-2455
3-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.67, 64cc-10.05, 70cc-9.51 2618 3-2455 K3-2455
1-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.96, 64cc-9.42, 70cc-8.95 4032 1-2456 K1-2456
2-FX 420 3.875" 6.000" 1.062" .927 1/16-1/16-3/16" -28cc Dish Top 58cc-9.96, 64cc-9.42, 70cc-8.95 2618 2-2456 K2-2456
3-FX 420 3.875" 6.000" 1.062" .927 1/16-1/16-3/16" -28cc Dish Top 58cc-9.96, 64cc-9.42, 70cc-8.95 2618 3-2456 K3-2456
1-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.52, 64cc-13.34, 70cc-12.35 4032 1-2457 K1-2457
2-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.52, 64cc-13.34, 70cc-12.35 2618 2-2457 K2-2457
3-FX 420 3.875" 5.700" 1.362" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.52, 64cc-13.34, 70cc-12.35 2618 3-2457 K3-2457
1-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.83, 64cc-11.91, 70cc-11.13 4032 1-2460 K1-2460
2-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.83, 64cc-11.91, 70cc-11.13 2618 2-2460 K2-2460
3-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.83, 64cc-11.91, 70cc-11.13 2618 3-2460 K3-2460
1-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -16cc Dish Top 58cc-11.25, 64cc-10.56, 70cc-9.96 4032 1-2463 K1-2463
2-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -16cc Dish Top 58cc-11.25, 64cc-10.56, 70cc-9.96 2618 2-2463 K2-2463
3-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -16cc Dish Top 58cc-11.25, 64cc-10.56, 70cc-9.96 2618 3-2463 K3-2463
1-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.67, 64cc-10.05, 70cc-9.51 4032 1-2465 K1-2465
2-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.67, 64cc-10.05, 70cc-9.51 2618 2-2465 K2-2465
3-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.67, 64cc-10.05, 70cc-9.51 2618 3-2465 K3-2465
1-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.96, 64cc-9.42, 70cc-8.95 4032 1-2466 K1-2466
2-FX 420 3.875" 6.000" 1.062" .927 1/16-1/16-3/16" -28cc Dish Top 58cc-9.96, 64cc-9.42, 70cc-8.95 2618 2-2466 K2-2466
3-FX 420 3.875" 6.000" 1.062" .927 1/16-1/16-3/16" -28cc Dish Top 58cc-9.96, 64cc-9.42, 70cc-8.95 2618 3-2466 K3-2466
1-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.52, 64cc-13.34, 70cc-12.35 4032 1-2467 K1-2467
2-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.52, 64cc-13.34, 70cc-12.35 2618 2-2467 K2-2467
3-FX 420 3.875" 6.000" 1.062" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.52, 64cc-13.34, 70cc-12.35 2618 3-2467 K3-2467
1-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -5cc Flat Top 58cc-13.21, 64cc-12.27, 70cc-11.46 4032 1-2700 K1-2700
2-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -5cc Flat Top 58cc-13.21, 64cc-12.27, 70cc-11.46 2618 2-2700 K2-2700
3-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -5cc Flat Top 58cc-13.21, 64cc-12.27, 70cc-11.46 2618 3-2700 K3-2700
1-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -16cc Dish Top 58cc-11.59, 64cc-10.87, 70cc-10.24 4032 1-2703 K1-2703
2-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -16cc Dish Top 58cc-11.59, 64cc-10.87, 70cc-10.24 2618 2-2703 K2-2703
3-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -16cc Dish Top 58cc-11.59, 64cc-10.87, 70cc-10.24 2618 3-2703 K3-2703
1-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.98, 64cc-10.34, 70cc-9.78 4032 1-2705 K1-2705
2-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.98, 64cc-10.34, 70cc-9.78 2618 2-2705 K2-2705
3-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.98, 64cc-10.34, 70cc-9.78 2618 3-2705 K3-2705
1-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -28cc Dish Top 58cc-10.24, 64cc-9.69, 70cc-9.21 4032 1-2707 K1-2707
2-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -28cc Dish Top 58cc-10.24, 64cc-9.69, 70cc-9.21 2618 2-2707 K2-2707
3-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM -28cc Dish Top 58cc-10.24, 64cc-9.69, 70cc-9.21 2618 3-2707 K3-2707
1-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.96, 64cc-13.74, 70cc-12.72 4032 1-2712 K1-2712
2-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.96, 64cc-13.74, 70cc-12.72 2618 2-2712 K2-2712
3-FX 434 4.000" 6.000" 1.000" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.96, 64cc-13.74, 70cc-12.72 2618 3-2712 K3-2712
 
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