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216-235 Engine Swap Speed Bump
#1363843 Sun Jun 07 2020 04:58 PM
Joined: Mar 2020
Posts: 33
P
Wrench Fetcher
Hello All,

I am in the middle of swapping my 1946 216 to a 57 235 and have found the flywheel bolt holes on the 216 flywheel are too small for the 235 bolts. I read the engine swap tech tip and see there are different versions of the 216 flywheel. The bolts from the 216 are too small for the 235 block. Can I use the flywheel from the 235? Not sure if it matters but I have a crashbox 4 speed transmission. Any other suggestions. I am now on a very tight budget so am hoping I can use what I already have.

Thanks

Patrick

Re: 216-235 Engine Swap Speed Bump
Patrick M #1363845 Sun Jun 07 2020 05:08 PM
Joined: Jan 2001
Posts: 4,965
P
Shop Shark
It sounds like you don’t have a 1946 engine.
1942 started the 7/16” bolt size.
If you are staying with the 6 volt starter you will need a 1942-54 216 or 235 flywheel.
I have seen where the 3/8” flywheel holes have been drilled out for the 7/16” bolts.
The center hole is also larger on the early flywheel, but the three dowel pins seem to center the flywheel fine.


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Re: 216-235 Engine Swap Speed Bump
Patrick M #1363873 Sun Jun 07 2020 08:24 PM
Joined: Mar 2020
Posts: 33
P
Wrench Fetcher
Dave,

At this point we are thinking about using the 216 bell housing with the 235 flywheel, clutch and starter. Disappointing as the same I had for the 216 were new. I will run the numbers on the 216 motor and get back to you. I "thought" it was original to the truck but my knowledge of the early chevy trucks is currently lacking. I'm learning though thanks to you and others on this forum. My thanks.

Patrick

Re: 216-235 Engine Swap Speed Bump
Patrick M #1363907 Mon Jun 08 2020 12:10 AM
Joined: Nov 2000
Posts: 1,909
F
Shop Shark
Is the truck 6 volt or 12 volt?
The 57 235 flywheel is 12 volt.


Professional Novice
Re: 216-235 Engine Swap Speed Bump
Frank50 #1364018 Mon Jun 08 2020 04:55 PM
Joined: Mar 2020
Posts: 33
P
Wrench Fetcher
Hi Frank,

If we have to go the way I described it will be a 12v. It was 6v when the 216 was installed.

Patrick

Re: 216-235 Engine Swap Speed Bump
Pre '68 Dave #1364021 Mon Jun 08 2020 05:12 PM
Joined: Mar 2020
Posts: 33
P
Wrench Fetcher
Dave,
In response to your statement about the mfg date of the 216, I tried researching the motor number online but what I have does not make complete sense. The engine number I have is AAFII52343 which doesn't match up 100% to what I found at http://chevy.oldcarmanualproject.com/. I plan on taking another look at the number to make sure I wrote it down properly. I would much rather use the 216 flywheel, clutch and starter as the starter has been professionally rebuilt and the clutch parts are new also. I will let you know what I find out.

Patrick

Re: 216-235 Engine Swap Speed Bump
Patrick M #1364076 Tue Jun 09 2020 12:21 AM
Joined: Sep 2001
Posts: 30,131
ace skiver
AAF
1941 Flint Michigan, 3/4 ton 216 truck engine ???
1941 Engine SErial Numbers [chevy.oldcarmanualproject.com]

II52343 ???
The AAF prefix came before the sequence code up to 1163720

Maybe someone can help?


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: 216-235 Engine Swap Speed Bump
tclederman #1364159 Tue Jun 09 2020 04:44 PM
Joined: Mar 2020
Posts: 33
P
Wrench Fetcher
Tim,
Thank you. That, along with Dave's information helps a lot. I bought the truck a few months ago as a 1946, but am now questioning if the truck itself is a '41. Is there an easy way to tell? I am sorry but I am still a newbie.

Patrick

Re: 216-235 Engine Swap Speed Bump
Patrick M #1364245 Wed Jun 10 2020 01:23 AM
Joined: Sep 2001
Posts: 30,131
ace skiver
Sorry, Patrick
That series of trucks is out of my limited knowledge-range.

Dave, and other "oldies" members should be able to provide help to you?


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: 216-235 Engine Swap Speed Bump
Patrick M #1364257 Wed Jun 10 2020 02:07 AM
Joined: Jun 2011
Posts: 3,512
E
Shop Shark
Does it matter?

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
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