This Smeding 427" Aluminum LS7 Short Block is designed to replace an OEM dry sump LS Short Block. This engine was meticulously assembled with the highest attention to detail and precision. Bearing clearance & ring gaps were measured, verified and set for this application's demands. This short block has a horsepower rating of 1,700hp. We can also assist with selecting the correct camshaft for your build and goals! Call 210-446-0960 for more information.

1700hp Rated:
Block: Dart SHP PRO Aluminum, 1/2" Head Threads, 1/2" Main Studs, 4.125" Bore
Crankshaft: Smeding LS7 4340 8 Counterweight, Internal Balance, 4.000" Stroke, 58x
Rods: Smeding 300m Billet Steel I-Beam w/ ARP2000 Bolts, 6.125" Length
Pistons: JE Ultra 2618 Forged Aluminum, Coated Skirts & 0.200" Pins - 5cc Flat Top
Rings: Stainless Steel Top, Napier 2nd, Low Tension Oil - .028"/.030"