The 402 finally called it quits so its tme for a new motor. I have a local builder (builds race motors for a living) that will put a killer 496 together for me (strong bottom end) but I have also been looking at the ZZ502 long block. I want a street motor that I can throw a little NOS at if necessary. I can't get real radical with the cam choice either way due to emissions here in AZ. I want it to run on pump gas as it will mostly be street driven (weekends only). By the time I get done I am seeing about the same dollar amount for each setup. So I guess what I am asking is if you were to make the choice.......... which way would you go, and why. Need help on the pros and cons.
built 496 VS ZZ502
70SSElky
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I went away from the 502 in part because I didn't want the extra expense of having to buy a new oil pan. If that isn't an issue for you, it's tough to beat the GM warranty.
You're looking at roughly the same displacement, valve area, etc, etc. Not much horsepower difference to be had, to my way of thinking.
You're looking at roughly the same displacement, valve area, etc, etc. Not much horsepower difference to be had, to my way of thinking.
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