CMW Trucks - 1947 - 1972 Chevy Truck Parts


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ZZ572/620 Partial Engine

Want to build your own ZZ572, but don’t know where to start? Try the ZZ572 partial engine – all of the good bottom end components you need to get going! It comes with the forged crankshaft, rods, and pistons installed in the special orange powdercoated 572 block. This partial engine does not include the camshaft, timing chain, camshaft sprocket, oil pan, oil pump, or front cover. Order all the parts to complete the engine from your GM Performance Parts dealer or finish it off with your own custom parts. Don’t forget to order the special “572 CHEVROLET” cast aluminum valve covers.

Possible Applications

  • The ultimate hot rod starting point
    Pump gas drag racing—just add spray
  • Wake up the neighborhood—anytime!
  • Only install if you want to be the biggest dog on the porch

*Applications have not been validated. They are merely suggestions of how you might enjoy your GM Performance Parts crate engine. Some applications may affect engine warranty. See specific warranty information. Some applications may not be emission legal; check state and local ordinances.

Part Number: 12499190
Engine type: Chevy big-block V-8
Displacement (cu in): 572
Bore x stroke (in): 4.560 x 4.375
Block (P/N 25534368): Cast iron with 4-bolt main caps
Crankshaft (P/N 88961554): Forged steel
Connecting rods (P/N 88962926): Forged steel, shot peened
Pistons (P/N 88962925): Forged aluminum
Maximum rpm: 6000

Chevy Performance ZZ572 - 620 Partial Engine Image

Part #: 12499190

zz572 - 620 R dyno image

Installation Notes

  • Clutch linkage boss is cast and machined in block, but must be drilled and tapped. When using cast iron exhaust manifolds, lower head bolts may need to be replaced with bolts with shorter heads, for clearance.
  • Requires additional parts (not included).
  • Gen VI tall-deck block has machined mechanical fuel pump boss
  • Comes with a 14" automatic transmission flexplate. Requires internally balanced flywheel for manual transmission applications.
  • Intended for pre-1977 street vehicles or all off-road vehicles.
  • Not intended for marine applications.
  • You do have a strong transmission and rear axle, don’t you?