ATK Engines HP94-TBI Chevy 383 Custom TBI Cam, 415 HP

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• 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 – 91048364Recommended Components:• Balancer: Internally Balanced• Intake Manifold: Dual Plane• Carburetor: 680 CFM, Vacuum Secondary, Electric Choke• Fuel Pump: 5791002• Distributor: HEI (Iron Gear)• Spark Plugs: Autolite #3923• Spark Plug Wires: 8mm• Water Pump: OE long pumpEngine Info:• Oil: Conventional / Non Synthetic 10W30• Oil Filter: Wix or K&N• Timing: 34-36 Degrees• Spark Plug Gap: .035”• Firing Order: 18436572• Octane: 91+• Stall Converter: 2200-2800• Exhaust: 1 5/8+ HeadersDisclaimer: 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

• Block: Machined GEN III Hemi 5.7L (2004-2008)
• Bore: 3.927 in. (Pistons size vary, final honing may be required)
• Displacement: 345 cubic inch
• Main journal type: Mopar GEN III Hemi
• Engine block material: Cast iron

Specifications

• Engine Displacement: 383 cu. in.
• Cylinder Head Material: Aluminum
• Intake Manifold Included: Yes
• Oil Pan Included: Yes
• Timing Cover Included: Yes
• Harmonic Balancer Included: Yes
• Flexplate Included: No
• Flywheel Included: No
• Material Type: Iron
• MFG. Part #: HP94-TBI
• GTIN Code: 00653517631399
• Sold in Quantity: Each
• Recommended Fuel: 91 Octane
• Brand: ATK Engines

Emissions Notice

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine