Hello , I am trying to figure out if a model B engine can be matted to a model A transmission ? I did a search but could not find the answer I was looking for . I might have been looking at the wrong place for it so if you can show me where to look for it that would be great to ! I am planning on running a 4 banger but don't want to drastically change my frame or running gear , and still would like to be able to get somewhere with it . Will a B-engine be the best way to go or can I do the same with an A-engine ? (I can get my hand on a A-engine or a B-engine , trying to figure out what way to go) thank you !
You need A bellhousing, B pan with clutch huousing part trimmed off. Can also be done with A pan, but must dent pan to clear rods and trim rear seal area to B-sized semicircle...look up installation procedure for whatever bellhousing, do not just bolt it on!
You will have to use a model "A" flywheel housing and bellhousing and trim the rear of the "B" pan to fit to model "A: block or dimple your 'A: pan for connecting rod clearance and increase seal radius on the "A" pan to fit the "B" rear main cap
But the magic word or letter is "B". You know your not really into it until you have a "B" block, I mean , what are a few cracks it's a "B"! Although the bore and stroke is the same and some old time sprint car drivers preferred the lighter weight "A" crank because they said it would excelerate faster coming out of the turns. I have an acquaintance that drives an "A" coupe with a Denver Miller with 8.5 CR on the street using an "A" crank. "Just stirring the pot"
Bill, I bought a b block and it was full of cracks and you were not around to talk me out of returning it. There is much more to be said on this topic but I hate to hijack the thread.
I found the website of AC&R. Could not find the pedal kit you are refering to. Looks like they store a lot of nice stuff. To bad the site have almost no pics of the parts though. Paul
One of kits is here; http://www.partsformodelafords.com/store/category.cfm?Category=27&StartRow=31 Category is "custom parts"...kit is a bolt in for B trans or V8 trans, mounts everything...but... I feel mountings are too shaky, especially radius rod, and the float mounts not only eliminate the effective center crossmember function of the stock mounts but mount radius rod, the suspension locater, to a motor that is itself now not really located...it is radically more work, but I think a B-A combo that does not use the A bell and trans should be built like an A-V8. This kit just seems to me to ignore structural concerns...
Thank you for this link and insight ! I can see your concern about the structural function off the model A transmission not being taken over by these adaptors .
The most common way to do this is as I described in an earlier post on this thread, you use the model "A" flywheel housing and you trim the rear flwheel portion from the "B" pan or modify your "A" pan. When you started this thread this was all you wanted to do. I don't understand all of the worry about motor mounts or the need to buy kits to install. It is a straight forward swap that has been done a million times. Yes, you would be better off with a later trans but that was not what you asked about.
The Jalopy Journal
