Forged PISTONS for 377 / 400

 
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Small Block Chevy 377 / 400

SBC 377 / 400- 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. 8110-4155 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 377 3.480" 6.000" 1.260" .927 1/16-1/16-3/16" -5cc Flat Top 58cc-11.62, 64cc-10.80, 70cc-10.10 4032 8110 K8110
SX 377 3.480" 6.000" 1.260" .927 1/16-1/16-3/16" -13cc Dish Top 58cc-10.56, 64cc-9.89, 70cc-9.31 4032 8113 K8113
SX 377 3.480" 6.000" 1.260" .927 1/16-1/16-3/16" -21cc Dish Top 58cc-9.68, 64cc-9.13, 70cc-8.64 4032 8115 K8115
SX 400 3.750" 5.700" 1.425" .927 1/16-1/16-3/16" -5cc Flat Top 58cc-12.45, 64cc-11.56, 70cc-10.81 4032 8120 K8120
SX 400 3.750" 5.700" 1.425" .927 1/16-1/16-3/16" -16cc Dish Top 58cc-10.92, 64cc-10.25, 70cc-9.67 4032 8123 K8123
SX 400 3.750" 5.700" 1.425" .927 1/16-1/16-3/16" -21cc Dish Top 58cc-10.36, 64cc-9.76, 70cc-9.23 4032 8125 K8125
SX 400 3.750" 5.700" 1.425" .927 1/16-1/16-3/16" -28cc Dish Top 58cc-9.67, 64cc-9.15, 70cc-8.69 4032 8126 K8126
SX 400 3.750" 5.700" 1.425" .927 1/16-1/16-3/16" +4cc Dome Top 58cc-14.09, 64cc-12.94, 70cc-11.99 4032 8127 K8127
SX 400 3.750" 6.000" 1.125" .927 1/16-1/16-3/16" -5cc Flat Top 58cc-12.45, 64cc-11.56, 70cc-10.81 4032 8130 K8130
SX 400 3.750" 6.000" 1.125" .927 1/16-1/16-3/16" -16cc Dish Top 58cc-10.92, 64cc-10.25, 70cc-9.67 4032 8133 K8133
SX 400 3.750" 6.000" 1.125" .927 1/16-1/16-3/16" -21cc Dish Top 58cc-10.36, 64cc-9.76, 70cc-9.23 4032 8135 K8135
SX 400 3.750" 6.000" 1.125" .927 1/16-1/16-3/16" -28cc Dish Top 58cc-9.67, 64cc-9.15, 70cc-8.69 4032 8136 K8136
SX 400 3.750" 6.000" 1.125" .927 1/16-1/16-3/16" +4cc Dome Top 58cc-14.09, 64cc-12.94, 70cc-11.99 4032 8137 K8137
1-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -5cc Flat Top 58cc-11.62, 64cc-10.80, 70cc-10.10 4032 1-2100 K1-2100
2-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -5cc Flat Top 58cc-11.62, 64cc-10.80, 70cc-10.10 2618 2-2100 K2-2100
3-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -5cc Flat Top 58cc-11.62, 64cc-10.80, 70cc-10.10 2618 3-2100 K3-2100
1-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -13cc Dish Top 58cc-10.56, 64cc-9.89, 70cc-9.31 4032 1-2103 K1-2103
2-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -13cc Dish Top 58cc-10.56, 64cc-9.89, 70cc-9.31 2618 2-2103 K2-2103
3-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -13cc Dish Top 58cc-10.56, 64cc-9.89, 70cc-9.31 2618 3-2103 K3-2103
1-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -21cc Dish Top 58cc-9.68, 64cc-9.13, 70cc-8.64 4032 1-2105 K1-2105
2-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -21cc Dish Top 58cc-9.68, 64cc-9.13, 70cc-8.64 2618 2-2105 K2-2105
3-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -21cc Dish Top 58cc-9.68, 64cc-9.13, 70cc-8.64 2618 3-2105 K3-2105
1-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM +4cc Dome Top 58cc-13.14, 64cc-12.08, 70cc-11.19 4032 1-2112 K1-2112
2-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM +4cc Dome Top 58cc-13.14, 64cc-12.08, 70cc-11.19 2618 2-2112 K2-2112
3-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM +4cc Dome Top 58cc-13.14, 64cc-12.08, 70cc-11.19 2618 3-2112 K3-2112
1-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -16cc Dish Top 58cc-10.21, 64cc-9.59, 70cc-9.04 4032 1-2253 K1-2253
2-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -16cc Dish Top 58cc-10.21, 64cc-9.59, 70cc-9.04 4032 2-2253 K2-2253
3-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -16cc Dish Top 58cc-10.21, 64cc-9.59, 70cc-9.04 4032 3-2253 K3-2253
1-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.04, 64cc-8.56, 70cc-8.14 4032 1-2257 K1-2257
2-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.04, 64cc-8.56, 70cc-8.14 2618 2-2257 K2-2257
3-FX 377 3.480" 6.000" 1.260" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.04, 64cc-8.56, 70cc-8.14 2618 3-2257 K3-2257
1-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.45, 64cc-11.56, 70cc-10.81 4032 1-2300 K1-2300
2-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.45, 64cc-11.56, 70cc-10.81 2618 2-2300 K2-2300
3-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.45, 64cc-11.56, 70cc-10.81 2618 3-2300 K3-2300
1-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -16cc Dish Top 58cc-10.92, 64cc-10.25, 70cc-9.67 4032 1-2303 K1-2303
2-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -16cc Dish Top 58cc-10.92, 64cc-10.25, 70cc-9.67 2618 2-2303 K2-2303
3-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -16cc Dish Top 58cc-10.92, 64cc-10.25, 70cc-9.67 2618 3-2303 K3-2303
1-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.36, 64cc-9.76, 70cc-9.23 4032 1-2305 K1-2305
2-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.36, 64cc-9.76, 70cc-9.23 2618 2-2305 K2-2305
3-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.36, 64cc-9.76, 70cc-9.23 2618 3-2305 K3-2305
1-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.67, 64cc-9.15, 70cc-8.69 4032 1-2307 K1-2307
2-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.67, 64cc-9.15, 70cc-8.69 2618 2-2307 K2-2307
3-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.67, 64cc-9.15, 70cc-8.69 2618 3-2307 K3-2307
1-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.09, 64cc-12.94, 70cc-11.99 4032 1-2312 K1-2312
2-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.09, 64cc-12.94, 70cc-11.99 2618 2-2312 K2-2312
3-FX 400 3.750" 5.700" 1.425" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.09, 64cc-12.94, 70cc-11.99 2618 3-2312 K3-2312
1-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.45, 64cc-11.56, 70cc-10.81 4032 1-2400 K1-2400
2-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.45, 64cc-11.56, 70cc-10.81 2618 2-2400 K2-2400
3-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -5cc Flat Top 58cc-12.45, 64cc-11.56, 70cc-10.81 2618 3-2400 K3-2400
1-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -16cc Dish Top 58cc-10.92, 64cc-10.25, 70cc-9.67 4032 1-2403 K1-2403
2-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -16cc Dish Top 58cc-10.92, 64cc-10.25, 70cc-9.67 2618 2-2403 K2-2403
3-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -16cc Dish Top 58cc-10.92, 64cc-10.25, 70cc-9.67 2618 3-2403 K3-2403
1-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.36, 64cc-9.76, 70cc-9.23 4032 1-2405 K1-2405
2-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.36, 64cc-9.76, 70cc-9.23 2618 2-2405 K2-2405
3-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -21cc Dish Top 58cc-10.36, 64cc-9.76, 70cc-9.23 2618 3-2405 K3-2405
1-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.67, 64cc-9.15, 70cc-8.69 4032 1-2407 K1-2407
2-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.67, 64cc-9.15, 70cc-8.69 2618 2-2407 K2-2407
3-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM -28cc Dish Top 58cc-9.67, 64cc-9.15, 70cc-8.69 2618 3-2407 K3-2407
1-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.09, 64cc-12.94, 70cc-11.99 4032 1-2412 K1-2412
2-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.09, 64cc-12.94, 70cc-11.99 2618 2-2412 K2-2412
3-FX 400 3.750" 6.000" 1.125" .927 1.2/1.2/3MM +4cc Dome Top 58cc-14.09, 64cc-12.94, 70cc-11.99 2618 3-2412 K3-2412