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Old 04-12-2006, 03:36 PM
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1930 5window coupe engine swap

how labor intensive is it to remove the original 4cyl out of a 1930 coupe and install a v-8? Also can the original 4cyl be hot rodded any?how good can these 4 cyls run? top speed? thanks in advance....

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Old 04-13-2006, 02:02 AM
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First you can hop up the original flathead 4 cylinder. There is a club trickily for inline engine lovers:


Fully built Model A motors can be driven at highway speeds and more.

If you want to put a V8 in your original Model A frame you are in for a lot of work. The frame is not very rigid as it was built for a time that did not have very good roads and it was designed to flex with the bumps and potholes. These frames cracked easily and you would have to repair any problems on your frame before doing any more work. To strengthen your frame for a V8 you will have to box the frame. That is you will have to enclose the channel frame by welding metal of similar thickness to the open side of the frame. Then you will have to weld in crossmembers to strengthen the frame between the rails. If you change to a V8 with increased power you will not be able to use your original transmission and rear end. You will also have to provide new engine, transmission and rear end mounts. There are many frame builders that provide kits for this or you can buy a newly built frame with all the mounts for engine, transmission and rear end. These are not impossible jobs as they have been done by hot rodders for over 70 years.

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Old 04-13-2006, 12:01 PM
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will a flathead v8 go in?
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Old 04-13-2006, 05:38 PM
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Originally Posted by pi71
will a flathead v8 go in?
Yes, and so will a 568 HEMI. But in any case the frame and chassis problems must be addressed.
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Old 04-13-2006, 05:46 PM
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What everybody said.......You can put most any V-8 in one but you will either have to by a frame that is set up for it or have the skills and tools and equipment needed to do it yourself. I did mine myself, it has a 350 Chevy in it. With the increased power and weight you will have to re-do the suspension as well as the brakes and the steering. Its no good if you cant stop.
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