Category: 383 Chevy 450 horsepower – 450 Lb-ft torque

A one piece rear main seal, 4 bolt main 880 roller block. AFR aluminum cylinder heads, SCAT bottom end with 10/1 compression. Hydraulic roller camshaft, full roller rocker arms, MSD ignition system, Edelbrock Air-gap and a Brawler double pumper carburetor makes a solid street engine.

The block

Started with an 880 1 piece rear seal, 4 bolt main roller block.

The return oils were opened up and radius to ensure oil flowed smoothly through the engine and back to the oil pan quickly

Valley oil holes opened up
Valley timing chain oil holes
Cylinder head oil return hole after
Cylinder head oil return hole before

The bottom of the cylinders were radius cut to clear the longer 3.75″ crankshaft stroke

Con-rod bolt clearance of .060′
bottom of cylinders the radius cut