Cummins Engine Swap Kits

CMW Trucks - 1947 - 1972 Chevy Truck Parts


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GM 383 Partial Engine

For those who want to build their own custom stroker Chevy small-block crate engine, this partial engine comes with the specially modified block, 3.80" forged steel stroker crankshaft, heavy-duty connecting rods, hypereutectic pistons, bearings, oil pan, oil pump, front cover, balancer, and 12.75" flexplate. This partial engine does not include a camshaft, lifters, timing chain, or cam sprocket. The oil pan is assembled loosely on the block so it can be disassembled without destroying the pan gasket. All parts needed to complete the Chevy crate engine are available from your GM Performance Parts dealer.

NOTE: Intended for pre-1977 street vehicles and all off-road vehicles. Not intended for marine use.

Possible Applications

  • Your hot rod truck
  • Your hot rod station wagon
  • Your heavy project car
  • Anything that requires big-block torque in a small-block package

*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: 12499106
Engine type: Chevy small-block V-8
Displacement (cu in): 383
Bore x stroke (in): 4.00 x 3.80
Block (P/N 88962516): Cast iron with 4-bolt main caps
Crankshaft (P/N 12489436): Forged steel
Connecting rods (P/N 12497624): Heavy-duty PM steel
Pistons (P/N 12499103): Hypereutectic aluminum

Chevy Performance 383 Partial Engine Image

Part #:12499106

383 dyno image

Installation Notes

  • NOTE: Distributor with melonized steel gear MUST be used with long blocks and partial engines with steel camshafts, or engine damage will occur. We recommend HEI distributor P/N 93448806.
  • Intended for pre-1977 street vehicles and all off-road vehicles.