Not a 383. My 9.0-1 360 will rip the 275/60's from a 10,20, almost 30 mph roll. If you you power shift with full throttle on it will keep spinning all the way thru 2nd and part of 3rd as well. 3.55 with a close ratio 2.47 1st . Yes a 383 should be able to easily brake loose.
Doug
Is that a bone stock 360?
No its not. But it's pretty mild 220@.050", true 9.0-1 runs on 87 octane, 650 carb, dual plane intake, headers. Tall 27" 275/60 tires with only a 8.77 SLR. The last stock 383 I had was a 68 Dart GTS 4 speed. And yes it would spin from a roll with 255/60, 3.23, 2.66 1st 4 speed, completey untouched.
Doug
