OLDS 4.0 V8 01-03 ENGINE

Engine Specifications: • HP: 435 • TQ: 475 • 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: Forged 10:1 compression • Rings: Moly • Camshaft: Hyd. roller • Cam Specs: 220/224 @50 .528in/.536ex 110LSA • Timing Chain: Double roller • Cylinder Heads: ATK HP aluminum 72cc/195cc 2.02/1.60 • 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 (with Scat kit) Recommended Components: • Balancer: Internally balanced – Dayco #PB1046-N • Intake Manifold: Edelbrock performer RPM dual plane #7101 • Distributor: HEI (Iron Gear) • Water Pump: OE long pump • Carburetor: Quick Fuel 670CFM vacuum secondaries electric choke #BR-67256 • Fuel Pump: Mechanical 80-110GPH • Spark Plugs: Autolite #3923 • Spark Plug Wires: 8mm Engine 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 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 other aftermarket parts. ATK reserves the right to substitute parts used in engines if necessary.