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-   -   Different peanut port head question! (https://www.offshoreonly.com/forums/general-q/214530-different-peanut-port-head-question.html)

larby 08-07-2009 05:19 PM

Different peanut port head question!
 
Hi All,

I've had a good search and can't find the info i'm after...

Can i run a gen 6 502 with gen 5 peanut port heads from a 330hp 454?

Any ideas on what power i'd see, and if it's even worth doing? The reason i ask is because i currently have the 454 in the boat, but i'm due to race next weekend. I was going to be running the 502 with rectangular heads, but i've just found i've got a problem with one. Now my options are to either just stick with the 330hp 454, or put those heads on my 502 and run that instead. I can't decide if it'll be worth it. Porting etc is out of the question.

Cheers, James

Itsallgood995 08-07-2009 05:57 PM

Contact this guy for you peanut power needs


http://cgi.ebay.com/ebaymotors/454-5...=p4506.c0.m245

hoozeyurdaddy 08-09-2009 09:13 AM

those heads barely make power in a 454, there is no volume to thoughs heads, don't waste your time and money for gaskets.

Ghostrider 08-09-2009 04:16 PM

Yes they'll fit but they may also do more harm than good.
The engine will run, but depending on your set-up (carb/efi, intake, exhaust) it will not run well over 3000rpm. You may also run the risk of overpressuring the heads due to the flow mismatch ond pooping a headgasket. Obviously, that can lead to much worse outcomes...
It will fit and I'd do it only if I was stuck somewhere and had to move the boat. Not to race it or even drive it in a remotely 'spirited' manner. Are the
rect ports cracked or something?


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