Originally Posted by Thelma133
I have read many people made 800 horsepower with a 400 block and it lived. I called Koffel, and he builds these strokers all the time, He said that 800 was the limit.


I'm at 850 on a 440 block. Does this mean I should be worried? LOL! work

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.