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Author Topic: Difference in L and F head blocks?  (Read 1736 times)

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Offline Jesse

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Difference in L and F head blocks?
« on: April 14, 2014, 07:54:28 PM »
Hey guys,

Just doing a little keyboard wrenching tonight, and I was wondering if anyone could point out the real differences between an L and F head jeep block. Did the F head blocks still have the places for the old valves blocked off? I know they casted them without intake ports on the drivers' side. What other changes were made? Couldn't you just put an F head on an L engine?

If you could, it seems like more people would go for it so maybe it isn't possible...

-Jesse
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Offline johnrb3b

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Re: Difference in L and F head blocks?
« Reply #1 on: April 15, 2014, 01:31:16 PM »
Too many differences.
Pushrod guides for the intake valves in the head.
Manifolds
I don't know if the head bolts are in all the same places. Probably not.
Probably lots more I don't know about.
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1946 2A - - - 1949 me - older than most of my Jeeps
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past Jeeps ---> '54 3B - no tub --- '59 3B - no engine
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Offline Jesse

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Re: Difference in L and F head blocks?
« Reply #2 on: April 15, 2014, 01:41:09 PM »
Hmm right I was thinking about the head bolts as well. Didn't think about the pushrod guides.

-Jesse
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Offline Lee

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Re: Difference in L and F head blocks?
« Reply #3 on: April 15, 2014, 08:35:01 PM »
Head bolts are in the same places, I recommend studying the gaskets before installing one, LOL, I installed a F head gasket in an L many years ago by mistake, results are NO compression and lots of bad language ;D

Lee ;)
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