Scat SB Chevy 4340 Forged Crank - 3.875 Stroke H759C09M These valley covers are machined

These valley covers are machined smooth on the underside

1980-1990 GMC C7000

We also have a smaller diameter Viton seal available for triple spring applications

Cross Pin GM 7

0:1 AFR (Requires Wiring) 0-5V Output Lambda values from

Scat SB Chevy 4340 Forged Crank - 3.875 Stroke H759C09M These valley covers are machinedProduct Description: Crankshaft Excalibur 3. 875 in Stroke Internal Balance Forged Steel 2 Piece Seal Small Block Chevy Sold Individually Scat started out as a shop specializing in high performance VW air cooled engines and later branched out into offering crankshafts for larger V8 engines. Today, they maintain three separate divisions: Scat Crankshafts, Procar (custom seats and accessories), and Scat Volkswagen Performance. For over 45 years Scat