Man that sounds like a sweet motor I love PONTIACS I have a few around here A 69 400 that is going to to have a 65 tri power installed on it and A 455 thats set to be bored 70 over and a stroker crank to make it almost 500 cubic inch. And last but not least A 428 in my 69 GTO....
Originally Posted by bigbadswingdaddy
59 poncho 389 in my 59 GMC. The motor has been bored .030 over and stroked 1/2 inch with a eagle forged stroker crank to come up with 447 inches. I am also running an early tripower on this motor. This motor is a direct bolt in replacement for the original 336 inch pontiac v8 that the gmc was born with.

I hate automatics, so this one moves with a 5 speed nv4500. I hope to break the new engine in very soon.

Last edited by 66chevyc10; 09/17/2009 11:10 PM.
1966 Chevy C-10 Fleetside