Product Description: ATK Engines; High Performance Crate Engine; HP631PC; Stage 3 GM Stroker V8 496-Cubic Inch / 600+HP / 650+TQ
Specifications:- HP: 600+
- Torque: 605+
- Engine Type: Chevrolet big block V8
- Displacement: 496 ci Block: OE 4 Bolt Main 1pc Seal Gen V 1991-1995
- Crankshaft: Scat 4340 Forged 4.250" Stroke Internally Balanced 1pc.
- Bore/Stroke: 4.310 x 4.250
- Rods: Scat 4340 Forged H Beam 6.385" ARP 8740 Bolts
- Pistons: Forged
- Rings: Moly
- Camshaft type: HYD roller
- Camshaft lift: Custom
- Camshaft duration @.50: custom
- Cylinder heads: Edelbrock Aluminum
- Chamber size: 118 cc
- Valve size: 2.19 in x 1.88 ex
- Intake runner volume: 315 cc
- Compression ratio: 10.1:1
- Rocker arms: Howards Billet Aluminum Full Roller 1.7 Ratio
- Sheet metal: Chrome valve covers, chrome timing cover and Moroso oil pan
- Recommended fuel: 92 octane
- Ignition timing: 34-36 degrees total advance
- Dyno proven: Yes
- Important: Engine does NOT have mechanical fuel pump provision, must run an electric pump.
- Important: Not for use in pollution controlled vehicles. Computer controlled vehicles may need updated chips or other modifications.
Note
- Special order, must be prepaid. Non-returnable. Non-refundable.
- Price includes $560.00 core charge.
- Shipped anywhere in the Continental United States for $175.00.
- 2 Year / Unlimited Mileage Warranty.
For more information, follow the link: ATK Engines; High Performance Crate Engine; HP631PC; Stage 3 GM Stroker V8 496-Cubic Inch / 600+HP / 650+TQ