What heads on the 420HP

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09-28-2006 | 09:11 PM

gripit

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From: Annapolis, MD

What heads on the 420HP

What heads came on the MERC 420HP engine?
Thanks

09-28-2006 | 10:45 PM

StraightJacket

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From: In a box, s. side of chi town

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.

09-29-2006 | 05:33 AM

birdog

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From: Batavia Oh.

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

09-29-2006 | 06:46 AM

gripit

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From: Annapolis, MD

Re: What heads on the 420HP

Birddog,
What did your set come off?

09-29-2006 | 02:16 PM

birdog

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From: Batavia Oh.

Re: What heads on the 420HP

Quote:

Originally Posted by gripit

Birddog,
What did your set come off?

540 "Bulldogs"

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