Engine Specifications: HP: 415 TQ: 460 Block: OE roller block 4 bolt main 1pc seal 1996-2000 Bore/Stroke: 4.040” x 3.750” Displacement: 383CI Crankshaft: Scat Nodular Iron external balance rear of crank/internal balance front of the crank Rods: Scat I Beam 5.7” Rods with ARP 8740 Bolts Pistons: Hypereutectic 9.7:1 Compression Rings: Moly Camshaft: Hyd. Roller Cam Specs: 220/224 @50 .528in/.536ex 110LSA Timing Chain: Double Roller Cylinder Heads: ATK High Performance aluminum with 2.020 in. /1.600 ex. valves Rocker Arms: Billet aluminum roller rockers 1.6 ratio Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some corvettes and 62-67 chevy II’s) Oil Pump: Melling STD Volume Flexplate/Flywheel: Externally Balanced – Pioneer #FRA-159 (with Scat kit) Balancer: Internally Balanced – PowerBond #PB1046-N Intake Manifold: ATK dual plane intake Distributor: HEI (Iron Gear) Water Pump: OE long pump EFI System: Fitech Go EFI 4 600HP (throttle body, wire harness and hand held unit included) Fuel Pump: Not Provided – must run electric pump or mechanical fuel pump with Fitech Fuel Command Center Spark Plugs: Autolite #3923 Spark Plug Wires: 8mm Engine Info: Oil: Conventional / Non Synthetic 10W30 Oil Filter: Wix or K and N Timing: 34-36 Degrees Spark Plug Gap: .035” Firing Order: 18436572 Octane: 91+ Stall Converter: 2200-2800 Exhaust: 1 5/8+ Headers Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. ATK reserves the right to substitute parts used in engines if necessary.
Highlights
- Chevy 383 stroker with FiTech EFI making 415 HP
- Electronic fuel injection offers better drivability and tuning
- Forged internals and aluminum heads for durability
- Complete engine includes intake, carb, and ignition
- Dyno-proven and ready for street or strip use
