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4.0 head on a 71 232

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71amchornet View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 71amchornet Quote  Post ReplyReply Direct Link To This Post Topic: 4.0 head on a 71 232
    Posted: May/04/2018 at 9:21am
Does anyone know if a 4.0 head will fit on a 71 232? I'm looking for any ways to slightly modify my 232 without swapping it out, I already have a swap I want to do but I want to do a little to my 232 possibly.
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ramblin64sw View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ramblin64sw Quote  Post ReplyReply Direct Link To This Post Posted: May/05/2018 at 11:38am
Yes, it will fit, but it will require you to plug some of the water jacket casting holes in the cylinder head. There are a number of posts on this subject if you do a search here. I have a 4.0 head on my 64 232, and am quite pleased with how it turned out.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GreggR Quote  Post ReplyReply Direct Link To This Post Posted: May/15/2018 at 10:40pm
Some questions...

Did you do anything to the 4.0 head... shave it? valve job? Valve springs?

Did you add an aftermarket cam?

Carb or EFI...?

Thanks in advance...
Skating away on the thin ice of a new day.'75 Hornet Hatchback
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vinny View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote vinny Quote  Post ReplyReply Direct Link To This Post Posted: May/16/2018 at 10:10am
I've not done the head swap yet to a spare 66 engine but considering it. A cam I think is needed because the stock one is pretty mild.

From what I am reading here there could be a difference in deck height between different vintage 232's so pushrod length would be a factor and some 232's have solid pushrods so they would need replacing. 

Someone was exploring the possibility of using Ford 2.3 L pistons which are .030" more than our std pistons and higher compression but have different pin dia's. I wonder if anything ever happened with that?  


Edited by vinny - May/16/2018 at 7:26pm
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ramblin64sw View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ramblin64sw Quote  Post ReplyReply Direct Link To This Post Posted: May/17/2018 at 12:01am
I used 0.100" long sbc valves and springs. The valves are 0 .060" longer than the stock 4.0 valves. I had the spring seats on the head cut to accept the sbc springs. I put 0.060" shims under the rocker pedestals and used a 9.5" pushrod from a Ford 400m. 





Edited by ramblin64sw - May/17/2018 at 12:09am
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