440 build questions

-
If you cannot port iron heads yourself, it makes no sense or 'cents' to run them in any kind of performance application, unless, the rules require them or you just gotta have them old iron heads. If you attempt to port iron heads I would start with 452 or 346 heads as they are easier to get over 290 cfm. If you are one hell of a head porter, you can go with the 906's as they can go well over 330 cfm but are harder for the beginner to get 290-300 than the 452 or 346. We've run the iron heads in competition because I've got the best head porter on the planet working in my shop. 'Cept he's said, "Nope Dad, I don't want to do it anymore!"
Can't blame him for that. I have done 3 sets of 915s in the past, and 1-906 set, and that was enough for me! Time to get one of them newfangled CNC automatic porting machines. What do they run? About $50,000? LOL , Just wondering.
 
-
Back
Top