Offshoreonly.com - 502 & 496 heads . will they fit on the same block

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Hot Boat

05-21-2003 11:05 PM

502 & 496 heads . will they fit on the same block

I was told that you can us either same exhaust for a 502 and a 496 . So i was wondering if 502 or 454 heads will fit on a 496????

ido1320

05-22-2003 02:06 PM

NO WAY. The heads are totally different. Only the exhaust pattern is the same.

seahawk

05-22-2003 03:49 PM

is'nt 496 a stroked 454

ido1320

05-22-2003 08:02 PM

No, the 496 is a completely new generation of GM big block. THe heads are bigger and HEAVIER. Although I believe u can use the standard L-29 bearings and I believe the rods are the same length, I believe the similarities stop there. It is, in my opinion, superior to the Gen-6 stuff, not to say the Gen-6 stuff isn't good stuff.

Ric232

05-22-2003 08:53 PM

Quote:

Originally posted by seahawk
is'nt 496 a stroked 454

That's how the original 496's came about (the "Rat" motors). As mentioned, the new 496's are an entirely new generation of engine.

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