Specialty

Chevy 383 Performance Plus

• Seasoned blocks with four bolt mains are hand-picked for minimum core shift
• Cylinders are bored with a Rottler bar so they are perpendicular to the main saddle
• Block is square-decked to guarantee a consistent compression ratio and an ideal gasket surface
• Main bore is align honed to assure proper size and concentricity
• Cylinders are diamond honed on a Sunnen CK-21 to guarantee the right crosshatch and clearance
• Cranks are plunge-ground with the right radius for maximum strength
• Heads have induction-hardened seats for the exhaust valves
• A three angle valve job is cut on every seat with a Serdi machine
• Balanced as an assembly for better performance and longer life

We Use The Best Brand-name Parts

• TRW / Speed Pro #2256F forged flat top pistons with 4 valve reliefs
• Clevite 77 Trimetal rod and main bearings
• DuraBond cam bearings
• Hastings moly rings
• Melling heavy duty double roller timing set with crank gear that has 3 keyways for more accurate cam timing
• Brass freeze plugs
• ARP rod bolts