| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,012 Posts1,055,312 Members48,419 | | 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!
| | 
#37404 11/20/2004 6:38 AM | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | The cool Chevy motor in 1961 was the 348. You might look for one of those or maybe the 409 which didn't arrive until 1962 but looks the same.
I'm a fan of big blocks and own a couple of 454s. None of the questions you ask represent difficult issues to solve.
Bellhousing should not be a problem. Weight is more, but only a couple hundred pounds, so its not a killer issue in a truck.
I don't think the motor mounts are a problem.
The issue I would be concerned about is that SM420. They are pretty tough, but were not designed for the 500 ft lbs of torque a mild big block can put out.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | |
|
|
| |
