240 head on 300 ?
Postmaster
Joined: Apr 2000
Posts: 3,890
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From: La Verne, California
I discussed this w/ Alex @ Johnson Machine Service, the ones that are have Built to the Hilt my 300 I-6 & he stated it's not worth the effort as it does not come close to upping the Compression Ratio as one would believe.
Plus he stated that there were some minor differences that make it a bit of a pain to do it.
Cheers
Colonel Flashman
Red '58 Mercury M-100
Blue '58 Mercury M-100 Panel
Plus he stated that there were some minor differences that make it a bit of a pain to do it.
Cheers
Colonel Flashman
Red '58 Mercury M-100
Blue '58 Mercury M-100 Panel
Originally Posted by thecowboy
has any one ever heard of putting a 240 head on a 300 ? will that work? dose it help the preformance any? just wondering, thanks.
Laughing Gas
Joined: Jun 2003
Posts: 1,218
Likes: 2
From: Parkville, MO (KC)
Guys over at fordsix.com do it all the time. I have not heard of any differences at all in terms of bolt up etc. Get one rebuilt off ebay -- there was a company that had them, at least a few months ago, for about $200. I think they had old stock and were just liquidating, as they wanted $400 for 300 heads.
But it really is a marginal upgrade that locks you into hi-octane fuel. Guys over there debate it regularly. It is also very popular to just zero the deck to decrease the combustion chamber. This gets you the added benefit of a nice true deck, if done correctly. And in the case of these performace builds, a trued up head and block are valuable as well to reduce head gasket failures.
Or so I understand. Me -- I'm running a stock 240 that's approaching 40 years old. Can't bear to screw with it till it goes of its own accord.
But it really is a marginal upgrade that locks you into hi-octane fuel. Guys over there debate it regularly. It is also very popular to just zero the deck to decrease the combustion chamber. This gets you the added benefit of a nice true deck, if done correctly. And in the case of these performace builds, a trued up head and block are valuable as well to reduce head gasket failures.
Or so I understand. Me -- I'm running a stock 240 that's approaching 40 years old. Can't bear to screw with it till it goes of its own accord.
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