Red Line Oil 15304 - GM Performance Parts 502 HT Towing Engine

The key to towing performance is torque, and the 502 HT has it way down low where it's needed most.

With 512 ft/lbs of torque at an incredibly low 2800 RPM and 338 horsepower at 4500 RPM, the 502 HT crate engine will help your vehicle climb hills, accelerate onto highways, and pass with confidence. The engine, which requires an electric fuel pump because the Gen VI block has no mechanical pump boss, includes oil pan, valvetrain, valve covers, timing set, balancer, and externally-balanced 14" automatic transmission flexplate. For manual transmissions, use externally-balanced flywheel (#809-14096987) and 11" clutch assembly.

Applications

Pre-1977 street vehicles

Off-road vehicles

NOT intended for marine or fuel injected applications

Recommended Fuel: 92 octane

Technical Specifications

Horsepower 338 @ 4500 RPM

Torque 512 ft/lbs @ 2850 RPM

Compression Ratio 8.75:1

Block Gen VI Cast Iron

Crankshaft Forged 1053 Steel

Cylinder Heads Cast Iron Small Oval Port Gen V

Valve Size 2.065" Intake/1.720" Exhaust

Camshaft Type Hydraulic Roller

Camshaft Lift .480" Intake/.483" Exhaust

Camshaft Duration @ .050" 204° Intake/209° Exhaust

Necessary Additions

Carburetor

Intake manifold

Water pump

Starter

Distributor

Ignition system

Complete list of GM Performance Parts 502 HT Towing Engine

Red Line Oil #816-15304

Red Line Oil 15304 Details

5W30 Provides the quickest starts and fastest oil pressure rise. Will reduce turbo lag and provides more power and best economy in an engine in good condition. Replacement for OE factory-fill oils in passenger cars and most light trucks, including most new GM cars and trucks. Thicker oil film at operating temperature than a petroleum 10W-40. Best choice for engines operated in extreme cold weather.