Product Summary

HP: 515
TQ: 585
Block: Seasoned OE block 1987-1992
Bore/Stroke: 4.400 x 4.150
Crankshaft: Scat nodular iron internal balance.

Installation Tips !

This product has a core charge built into the selling price. You can receive a refund of this core charge by returning a suitable old core to ATK Engines. A packet of core return paperwork will be mailed to you to assist with this process.

Details

Engine Specifications:

• HP: 515
• TQ: 585
• Block: Seasoned OE block 1987-1992
• Bore/Stroke: 4.400 x 4.150
• Displacement: 502
• Crankshaft: Scat nodular iron internal balance
• Rods: Scat 4340 forged I beam with ARP 8740 bolts
• Pistons: Hypereutectic 9.5.1 compression
• Rings: Moly
• Camshaft: Hyd. flat tappet
• Cam Specs: 225/235 @50 .536in/.541ex 112LSA
• Timing Chain: Double roller
• Cylinder Heads: Edelbrock performer RPM aluminum 75cc/292cc 2.190/1.760
• Rocker Arms: Stainless steel 1.73 ratio
• Oil Pan: Front sump
• Oil Pump: Melling high volume
• Balancer: PowerBond internal balance #PB1210-N
• Flexplate/Flywheel: Pioneer internal balance #FRA-207
• Intake Manifold: Edelbrock performer RPM dual plane #7166
• Distributor: Pro billet RTR (Iron Gear)
• Water Pump: OE Cast iron
• Carburetor: Quick Fuel 780CFM vacuum secondary’s electric choke #HR-780
• Fuel Pump: Holley mechanical 110GPH #12-460-11
• Spark Plugs: Autolite #3923
• Spark Plug Wires: 8mm

Engine Info:

• Oil: Conventional / Non Synthetic 10W30 with Comp Cam zinc additive #159 for first 3000 miles
• Oil Filter: Wix or K&N per application
• Timing: 34-36 Degrees
• Spark Plug Gap: .035”
• Firing Order: 15426378
• Octane: 91+
• Stall Converter: 2200-2500
• Exhaust: 1 ¾-2” 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.