ATK Engines HP94 Small Block Chevy 383 Stroker Base Engine, 415HP
The HP94 is a 383 cubic-inch Small Block Chevy stroker base engine rated at 415 HP and 460 lb-ft of torque. It is built around an OE-style roller block and uses a hydraulic roller camshaft with aluminum performance components.
Key Specifications
- 383 cubic inches
- 415 HP / 460 lb-ft torque
- OE roller block, four-bolt main, one-piece rear main seal, 1996–2000 style
- 4.040 x 3.750-inch bore/stroke
- Hydraulic roller camshaft
- Aluminum cylinder heads
- Billet aluminum 1.6:1 roller rockers
Recommended Components
The source listing recommends an ATK dual-plane intake, Quick Fuel 680 CFM carburetor, HEI distributor, OE long water pump, Holley mechanical fuel pump, Autolite plugs and 8mm wires. It recommends conventional 10W30 oil, 91+ octane fuel and 34–36 degrees timing.
Verify the exact configuration, accessories and application-specific clearances before ordering.
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