Olds powered cadillac

Sure its been asked plenty of times. What heads are best for a 455 ? Only really want around 400 hp. Will machined stock heads be good our do I have to fork out 1500+ for aftermarket? And are the offenhauser intakes good?

cutlassefi

Stock castings, the right cam, 9.5:1 or a little better, and a Performer will get you headed in the right direction.

Olds powered cadillac

Do I need a certain casting or will any do ? And would I have to change the pistons our could I get that cr with the stock ones?

firefrost gold

I would look for some c 's or A's . There are a few c's floating around the for sale
section that are rebuilt and ready to go from the add.

cutlassefi

What year is the 455?

Olds powered cadillac

Dont have it yet just decided on a 455 and wanna know what to keep my eye out for so I dont pass up the wrong thing or waste my money on something.