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Click on image for the lowdown. 
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| | | Forums66 Topics128,083 Posts1,055,967 Members48,430 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jan 2007 Posts: 12 New Guy | | New Guy Joined: Jan 2007 Posts: 12 | so i finally got my 48 1.5 ton dump back to my driveway nestled in between my '71 c-10 and my wife's '62 falcon.....my neighbors are real happy, so back to it.....my old 235 is pretty beat up and worn down, i plan on using my bolt a few times a week for work, and was thinking about swapping a small block into it, i can fab motor mounts and get just about anything to fit, the info thats holding me back is if the bolt pattern will match to the trans (4 speed), any info would be much appreciated....i figure if i have 2 trucks runny idnetical engines...my maintainence and overall vehicle house keepinw would be simplified, plus there's no replacement for displacement...ill get pics of all my crap up soon | | | | | Joined: May 2002 Posts: 155 Shop Shark | | Shop Shark Joined: May 2002 Posts: 155 | Tranny should bolt up just fine..I've got a 292 in my 49 4400 and other than fabricating eng mounts, all else bolted right up..I added a 4spd brownie to give me better road speed with the stock rubber...
Geoff
68 GMC 3800 56 JD420C w/JD90 Loader
| | | | | Joined: Sep 2006 Posts: 1,276 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 1,276 | All you need is a bell housing with the V8 or later 230, 250, 292 6 cyl bolt pattern at the front and the mounts at the lower sides like your 235s bell housing mounts and the small pilot hole at the rear. Easiest to find in 64 to 67 Chevy/GMC pickups with a four speed SM420 Trans. In 68 they changed to the SM465 that has a larger front bearing support and pilot hole in the bell housing. Then motor mounts and your in. | | |
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