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...
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Oh forgot...my 7.4L's 410 ft/lbs starts at about 1,400 RPMs and flat till about 3,800 RPN's. So it should be able to hold 65MPH in double OD when used as a car.
I seldom tow in OD in the hills. Sometimes on the flats, at sea level, but not often. MPG is NOT on my have to have list...just nice to have
Shooting for +500 Ft/Lbs on the rebuild and still pass SMOG.
More HP if can find the valve train that will allow higher RPMs
I seldom tow in OD in the hills. Sometimes on the flats, at sea level, but not often. MPG is NOT on my have to have list...just nice to have
Shooting for +500 Ft/Lbs on the rebuild and still pass SMOG.
More HP if can find the valve train that will allow higher RPMs
