putting 240 head on 89 300
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Joined: Mar 2008
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putting 240 head on 89 300
I have a 89 f250 with a 300. I was told that puting a 240 head on could gain me some much needed power. I was just woundering what whould be involved and if it is even worth my time
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Joined: Apr 2004
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Others will know for sure, but you may have difficulty bolting up the manifolds to the 240 head. There may be extra studs or something...
Also, I THINK others have indicated the EFI motor head had some "improvements" over the carb'd heads, so you gain from the compression ratio may be given away to a flow issue...or not.
Stay tuned, you'll get more replies.
Also, I THINK others have indicated the EFI motor head had some "improvements" over the carb'd heads, so you gain from the compression ratio may be given away to a flow issue...or not.
Stay tuned, you'll get more replies.
Postmaster
Joined: Dec 2006
Posts: 3,603
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From: Spokane, WA
You most likely will not get any appreciable gains much less "much needed power" from switching out the EFI head to a 240 carbed head...might even go backward.
IIRC the EFI head has a high swirl combustion chamber and some may have used it on carbed engines but the gains there might not be worth the investment in the swap unless one is rebuilding an engine anyway and the parts for the swap are readily available at little or no additional cost.
IIRC the EFI head has a high swirl combustion chamber and some may have used it on carbed engines but the gains there might not be worth the investment in the swap unless one is rebuilding an engine anyway and the parts for the swap are readily available at little or no additional cost.
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Joined: Apr 2003
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From: Heart of Dixie
According to a post on the ford six forums, the 240 head has smaller combustion chambers; roughly 8 cc smaller. That will raise compression to 9.4-9.5:1 which will be worth a few HP/ft lbs. Timing will need to be adjusted since the fast burn characteristics are gone and the compression is raised. There was another post that mentioned something about carb heads missing 2 bolt holes. Might want to do some research on www.fordsix.com
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Postmaster
Joined: May 2002
Posts: 3,241
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From: Broken Arrow, OK
I haven't seen the numbers in a while, but IIRC the 240 and EFI chambers are almost the same size and they are both quite a bit smaller than the carb 300 head.
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