gear ratios
The truck is a 1988 R30 Silverado dually four door weighing in at over 6600 lbs. The horsepower will be 375 hp, 400 lbs. torque with a Turbo 400 3 speed. Towing a 30 ft Airstream at 7800 lbs. Would li...
Forum Discussion
The engine will be a modified 7.4 or 454 with old style cylinder heads called 781.This was the worst 7.4 Chevrolet built coming in at 240 hp. About 2500 dollars in machine work gives me a much better engine
