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gripit

09-28-2006 09:11 PM

What heads on the 420HP

What heads came on the MERC 420HP engine?
Thanks

StraightJacket

09-28-2006 10:45 PM

Re: What heads on the 420HP

They are the Chevy Hi-Perf , Reqtangler ports. Good Heads work well out of the box ,with a little bit of work they work better. Not possitive of the casting number tho.

birdog

09-29-2006 05:33 AM

Re: What heads on the 420HP

I have a set for sale...188s...Fresh..Stainless/Inconel valves..ports cleaned up & checked for cracks....Ready to go

gripit

09-29-2006 06:46 AM

Re: What heads on the 420HP

Birddog,
What did your set come off?

birdog

09-29-2006 02:16 PM

Re: What heads on the 420HP

Quote:

Originally Posted by gripit

Birddog,
What did your set come off?

540 "Bulldogs"

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