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#1501993 Wed May 24 2023 08:17 PM
Joined: Oct 2005
Posts: 4,038
MNSmith Offline OP
"Hey! I sound like Darth Vader!!
What am I looking at for bellhousings? AND, if I wanted to go modern transmission, what am I looking for in bellhousings?

I found a company that makes an adapter for the 302 to a modern automatic, but, with no way to motor mount the jimmy on the sides, I'll have to do a front/bellhousing mount. I don't want 3 points of mount, nor do I want a modern trans hanging off the back of the engine all by its lonesome.

MNSmith #1501999 Wed May 24 2023 09:01 PM
Joined: Jan 2019
Posts: 1,370
F
Herder of Cats, Goats, and Sheep (moderator)
What is your goal and which vehicle are you putting it in?

Not sure if it matters without digging deeper, but what year 302 also?

Auto or manual or do you care?


From the Rocky Mountains?
Check in with the RM Bolters!

HiPo Forum Moderator

1958 Apache, long bed Fleetside, V8 w/SM420
Driveable but the rear axle needs work.

1959 Apache, long bed Fleetside that has been in the family for 25 years but in desperate need of love.
MNSmith #1502002 Wed May 24 2023 09:26 PM
Joined: Oct 2005
Posts: 4,038
MNSmith Offline OP
"Hey! I sound like Darth Vader!!
The engine is homeless at the moment. Trying to figure out if I have a boat anchor or not. It wouldn't be horrible if I built a Panel around it or, if I could find one, a Canopy Express.

The engine is pretty and all, but if you can't get that power to the rear wheels, what good is it.

I don't know what year the 302 is. It's early enough to be the front mount/bellhousing mount type.

Prefer auto these days but, again, trying to figure out if it is worth keeping or not. Personally, I'll drive anything. Just show me where to start it.

MNSmith #1502003 Wed May 24 2023 10:07 PM
Joined: Jan 2019
Posts: 1,370
F
Herder of Cats, Goats, and Sheep (moderator)
Did you see what Cleetis had to say a few years back?

https://www.stovebolt.com/ubbthread...9126/re-302-gmc-inline-6.html#Post999126

Some good info there if you haven't seen it yet.


From the Rocky Mountains?
Check in with the RM Bolters!

HiPo Forum Moderator

1958 Apache, long bed Fleetside, V8 w/SM420
Driveable but the rear axle needs work.

1959 Apache, long bed Fleetside that has been in the family for 25 years but in desperate need of love.
MNSmith #1502006 Wed May 24 2023 10:21 PM
Joined: Oct 2005
Posts: 4,038
MNSmith Offline OP
"Hey! I sound like Darth Vader!!
Thanks! I believe I had seen that thread.

MNSmith #1502056 Thu May 25 2023 11:05 AM
Joined: Jun 2011
Posts: 4,977
E
'Bolter
Buffalo in WA makes an adapter to put a modern GM bellhousing on 302’s. Since GMC flywheel bolt patterns are different than Chevy, can get a Chevy flywheel and redrill mounting bolt holes between the Chevy ones. If one does not need OD, a GM bolt pattern NP 540 series 5 speed transmission works well with a 302. Normal driving use top 4 gears, granny avail@ble for starting with loads.

I put one in my ‘47.1 one ton with transfer case behind.

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.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
MNSmith #1502086 Thu May 25 2023 04:07 PM
Joined: Jan 2022
Posts: 1,015
B
'Bolter
I'm not sure Buffalo is still in business. A friend sent him a check to get Buffalo's front disk brake kit about a year ago. After calling once a week or so for months, the voice mail announcement turned generic, sounding like he is no longer building parts. The good news is that he never cashed my friend's check.

Too bad, as Buffalo was building quality parts for relatively low cost.

His ad is still up on inliners international [inliners.org], the only place I've ever seen him advertise.


'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/13
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
MNSmith #1502108 Thu May 25 2023 05:48 PM
Joined: Oct 2005
Posts: 4,038
MNSmith Offline OP
"Hey! I sound like Darth Vader!!
Ed,

How would the mounting of the engine/trans assembly work?

MNSmith #1502290 Fri May 26 2023 08:52 PM
Joined: Jun 2011
Posts: 4,977
E
'Bolter
Most light weight trans. are designed to hang off the back of the bellhousing which puts the load on the bellhousing rubber mounts. That would mean using the front lower mount on the engine. Don’t want to have 4 side mounts, twists frame. One can always make up a mount for the rear on most trans if any bolts are there.

On my NP-540 series trans, the transfer case was used for the rear mount.

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.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
MNSmith #1502358 Sat May 27 2023 02:40 AM
Joined: Oct 2005
Posts: 4,038
MNSmith Offline OP
"Hey! I sound like Darth Vader!!
Are you saying front, bellhousing AND trans mount?

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