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Old 02-11-2006, 05:13 PM
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1940 Chevy Engine Swap

Anyone know of any real complications in fitting a big block chevy into a 1940 chevy coupe? Other recommended engines? Thanks

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Old 02-11-2006, 05:25 PM
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I am guessing the bay is close to my 39 truck. If it is the headers will not fit between the frame rails and the block. I redid the firewall for the distributer and still have about an inch between the short water pump and radiator. Lots of room above. Do a lot ot of measuring. I will be glad to supply dimensions if you need them. I am running a 509 and it is full.
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Old 02-11-2006, 08:23 PM
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My 40 was tight with a smallblock around the headers and needed block huggers to get by the steering shafts going to the rack. If your stuck on a big block Im sure it can be done with some work. You could always have a small block built with big cubes. That seem to be the way to go these days
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Old 02-11-2006, 09:04 PM
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Here's a pic of my buddy's 40 Chevy 2 door sedan chassis. For those of you that think headers won't fit with a big block I have news for you, they do with room to spare.



Heidts IFS, 454, TH-400, Ford 9", tubed etc.
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Old 02-11-2006, 09:32 PM
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Humm! I re-read both post and never saw any word saying it can't be done. I just said with some work.
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Old 02-12-2006, 09:45 AM
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Quote:
Originally Posted by 40bowtie
Humm! I re-read both post and never saw any word saying it can't be done. I just said with some work.
You're quite correct. I mis-read your post. Frankly though it doesn't take any more work to slip in a big block than a small block. Maybe a little more planning but not really any more work.


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Originally Posted by 40bowtie
......You could always have a small block built with big cubes. That seem to be the way to go these days
Please don't think I'm picking on you but that statement just strikes a nerve with me and the sad part is that you're not alone in that belief. The small block Chevy is nothing more than a "cookie cutter" engine anymore. Everyone seems to have one. What's the point of having a street rod if it is just like everyone else's? Especially when you have the choice of so many other (better IMHO) power plants. big block Chevy, small block Ford, small block Chrysler, big block Chrysler, Buick Nailhead, Ford Flathead, early Olds V8, any late 60's Buck, Olds or Pontiac big block, any early Hemi, and any Caddy V8 including the Northstar, etc, etc. The choices are endless but for some reason people feel they have to follow everyone else and stick in a small block Chevy.

Sorry for the rant but although the small block Chevy is a great engine it just ticks me off when so many people (street rodders) lack the imagination and wont spend the effort to use something other than the "cookie cutter" solution.

Last edited by Centerline; 02-12-2006 at 09:50 AM.
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Old 02-12-2006, 10:31 AM
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the engine bay is tighter on a 40 since it came with a skinny 6cyl. It will fit, but be tight.
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Old 02-12-2006, 01:54 PM
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No problem centerline. I guess what I should have said was you will need block hugger headers. I do agree with the small block being the choice of most rod's these days, but I think it comes down to what parts are around.
I was just going by what I did in my 40. I had a set of shorty header that would not fit beside the steering shafts. I had to buy a set of huggers. Another thing I find in answering questions on 40's is that you never know if they plan a frame off or to just drop a motor in. Some new to building think they can just drop an up to date motor in and never consider , mounts, firewall, steering, rad , rear end, shaft, and so on.
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Old 02-12-2006, 01:58 PM
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Quote:
Originally Posted by 40bowtie
..... Another thing I find in answering questions on 40's is that you never know if they plan a frame off or to just drop a motor in. Some new to building think they can just drop an up to date motor in and never consider , mounts, firewall, steering, rad , rear end, shaft, and so on.
You hit the nail on the head with that one.
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