Thread: My 429

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Welcome to the forum! I have a 429 in my truck and have another question, sorry for hijacking your thread,

Paul, the guy that we bought the truck from said that he had ported and polished the heads. I don't know if he had this professionally done or did it himself, so I have two questions:

1. If I pull the heads, how can I tell what was done on them (they are dove-c)
2. is it true that a good port and polish job on the dove-c heads can give 75hp increase?

thanks much guys.

Red

Ok, thanks for your answers!

I think I'm going to test the compression first. The car has a lot of miles, but I'm not sure if the preowner has rebuild the engine anytime.