Parts required to swap from small block to 385 in a Superformance

[Mark IV]

Originally Posted by Ace23

Thank you for your input. It sounds like I was not to far off on my initial list. I thought the hoses were specific but maybe that is something that I can get at the local NAPA. Do you have any input on the existing radiator? My car is #1867 so that helps my hood situation. I see where most use the Torker II but I have been told it is not ideal given my goals

The radiator is the same for all SPFs and will handle 600HP plus with no issues.

We can supply NAPA numbers for the rad hoses although some need to be cut and you use some hard tubes as well.

[blykins]

In your application, the trans would hold up just fine. If you were drag racing and were doing drop clutch launches with slicks.......nope.

Those transmissions are rated safely for 600 lb-ft of *continuous* torque. They will hold more and you can always choose the clutch to be the circuit breaker.

[Ace23]

Originally Posted by blykins

In your application, the trans would hold up just fine. If you were drag racing and were doing drop clutch launches with slicks.......nope.

Those transmissions are rated safely for 600 lb-ft of *continuous* torque. They will hold more and you can always choose the clutch to be the circuit breaker.

Thanks Brent I needed some good news today! I know I had tossed around the gear swap idea while the current motor is in the car. I think I should hold on to those 3:31's as a spare set. What gears do you see guys running on the street in these cars considering a stroked 385?