Thread: 402 big block HELP !!

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Originally Posted by pat mccarthy

i can not see why i do them all the time . aluminum heads could be you have to watch the port CC runner size as most heads are base off a 454 or hi rpm smaller engine .put to big of a head on the 396/402 you will have a pig

Just for my own knowledge Pat, would you be thinkin' around 290 cc's?

less for the street 402 is no more then a big size 400 sbc so you would not need a very big port. the 270 race rite heads at lower lifts flow good numbers and them may be to big for a mild 402