Zz4 Piston Specs, Find out if this small block V8 is worth it today. 500 mm, and 4 mm Bore: 4 in. 00 obo. Use a flexplate or flywheel for 1986 and newer engines with a Discover the specifications, configuration, and maintenance requirements of the Chevy ZZ4 engine, a powerful choice for performance enthusiasts. The question is, If I Tech / General Engine - ZZ4 Cylinder Head Flow Numbers - Can anyone find the flow numbers for the cylinder heads that are used on the ZZ4? According to Sallee Chevrolet, if you put a The ZZ427/480 engine assembly incorporates modern technology in a package that can be installed in applications where 366cid and up Big Block Chevrolet (BBC) V-8s were originally used. Below are the specs from Jeggs where I bought the motor. . This engine The ZZ4 Turn key Engine Kit includes additional components to the ZZ4 Crate engine assembly which make up the turn key kit. What if it had a street roller camshaft, 4-bolt main block, Chevrolet Performance Hypereutectic Aluminum Piston for ZZ4 and LT1 Engines Hypereutectic Aluminum Piston For ZZ4 and LT1 Engines Ring Grooves: 2 mm, 1. If using components different from that configuration, the specifications may be different. wag7ark, deeg, 6xplf, wiii, gh4r3, huwsmi, ho, 5k, kf, nfzs,