12499101 HT383 Base - Performance Engine

Part Number: 12499101

Retail Price: $5,607.34
Your Price: $4,489.48
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Part Number: 12499101
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 383
Bore x Stroke (in): 4.000 x 3.800
Block (P/N 88962516): Cast-iron with 4-bolt main caps
Crankshaft (P/N 12489436): 4340 forged steel
Connecting Rods (P/N 12497624): Heavy-duty PM steel
Pistons (P/N 12499103): Hypereutectic aluminum
Camshaft Type (P/N 14097395): Hydraulic roller
Camshaft Lift (in): .431 intake / .451 exhaust
Camshaft Duration (@.050 in): 196° intake / 206° exhaust
Cylinder Heads (P/N 12558060): Vortec iron; 64cc chambers
Valve Size (in): 1.940 intake / 1.500 exhaust
Compression Ratio: 9.1:1
Rocker Arms (P/N 10089648): Stamped steel
Rocker Arm Ratio: 1.5:1
Water Pump (P/N 88894341): Cast iron
Recommended Fuel: 87 octane
Ignition Timing: Base 10° BTDC, 32° Total
Maximum Recommended rpm: 5,000
Balanced: External

General Motors Warranty Information

Select the parts below to finish your crate engine and get running in less time!

24216083 4L60-E Tour-Speed Automatic Transmission

19212657 Transmission Controller

19170092 Carburetor, Holley 670-cfm

12497985 Chrome-Finish Aluminum Valve Covers 

12497979 Aluminum Black Valve Cover

93440806 HEI Distributor


INSTALLATION NOTES
• Requires addition of carburetor, ignition and starter (not included)
• Rochester Quadrajet or Holley 770-cfm carburetor recommended
• Comes with 12.75-inch externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission.
• Has right-side oil dipstick
• Designed for pre-1976 street vehicles or any off-road vehicle
• Not intended for marine applications