SP350 ZZ4 ZZ6 Short Block

P/N 19435619

When building a performance engine or replacing a stock engine, our production-based blocks offer the strength, accuracy, and peace of mind you”d expect from Chevrolet Performance.  With it's forged steel crankshaft and 4-Bolt main block, The Chevrolet Performance Short Block is a proven winner. Used as the foundation for thousands of crate engines including the legendary ZZ6.  Its forged powdered metal connecting rods and hypereutectic pistons ensure high RPM performance.

Compression Ratio is dependent upon the combustion chamber size of your cylinder heads

• 58cc head chamber - compression ratio 10.0:1
• 62cc head chamber - compression ratio 9.8:1
• 64cc head chamber - compression ratio 9.6:1

 

Internal Components:

• Block: Cast iron with 4-bolt main caps, with 1 piece rear main seal
• Crankshaft: Forge 1053 steel, internally balanced
• Connecting Rods: Powdered metal
• Pistons: Hypereutectic aluminum
• Does not included any valvetrain components, timing chain, timing cover, oil pump, oil pan, balancer or flywheel