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Joined: Apr 2005
Posts: 72
5
Wrench Fetcher
Wrench Fetcher
5 Offline
Joined: Apr 2005
Posts: 72
I couldn't find this information on the site so here is my question. I was talking to a machinist that builds motors professionaly. He stated that if I swapped out my 235 for V8 and kept my 4 speed granny sm420 I would have to weld some type of brackets/braces for the clutch set up. Something about welding brackets/braces to the frame for it? I did not understand all that he said; it was way over my limited mechanic skills. I know someone on this site has dealt with this before, a V8 to a sm420.

Any other info or help on the pitfalls of putting this combo together would help.

Thank you,

Dan


If you didn’t skin a knuckle while you were working on your truck, you weren’t working hard enough!

53 5window 1/2 ton
54 3window 1/2 ton
Joined: Oct 2001
Posts: 3,458
4
Extreme Gabster
Extreme Gabster
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Joined: Oct 2001
Posts: 3,458
On a '53 the clutch has a rod type linkage. I think most V8's have a hydraulic or z-bar linkage, so you have to figure out a way to connect the clutch pedal.


Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic.
Joined: Apr 2005
Posts: 72
5
Wrench Fetcher
Wrench Fetcher
5 Offline
Joined: Apr 2005
Posts: 72
Josiah,

Boy, is that what he was trying to tell me? You summed it up in one sentence and I know exactly what you are talking about. I think he tried telling me the same thing and it took him 5 minutes and I was still confused. It makes perfect sense now.

He did mention something about getting a hydraulic clutch out of a S10. He stated I would have to change out the clutch peddle. I told him that I wanted to keep the original peddle set up for the nostalgic look.

Thanks for your help.


If you didn’t skin a knuckle while you were working on your truck, you weren’t working hard enough!

53 5window 1/2 ton
54 3window 1/2 ton
Joined: Mar 2004
Posts: 3,068
'Bolter
'Bolter
Joined: Mar 2004
Posts: 3,068
My V-8 truck has a mid 70's bell housing. The only thing that didn't need modified was the linkage. I had to modify the mounting pad to the cross member to use that bell, but no linkage problems that I can remember,
Scott


Scott Ward

2 1948 1.5-ton Loadmasters
The red one and The snow pusher
1 1950 3100
1 1955.1 Chevy 6500
1 1954 Chevy 6500 2-Ton
1 1955 1st Series COE 5700
1 1963 K20 (454)
1 1964 C10 (350)
1 1951 1.5-ton Dump Truck
1953 and a 1956 Ford F800

Raising a teenager is like trying to nail Jello to a tree!
Joined: May 2005
Posts: 82
N
Wrench Fetcher
Wrench Fetcher
N Offline
Joined: May 2005
Posts: 82
This one is easy. I used the original stock fork, throw out bearing & linkage when I dropped a 327 & m21 4 speed in my '49. I would think it would work with a v-8 & sm420. The only problem may be finding a clutch disc with the right diamater & number of splines. Good luck.


1949 chev 3100 3 window. 350hp/327/m21 4 spd, 12 bolt rear, power brakes, 3" dropped axle from Sid's. Disc brakes next.

Moderated by  Phak1, Woogeroo 

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