| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,087 Posts1,056,119 Members48,435 | | 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: Sep 2004 Posts: 6 Junior Member | | Junior Member Joined: Sep 2004 Posts: 6 | I've looked just about everywhere I can on the site and can't find quite what I'm looking for -- please forgive me if it's been asked before.
I have a 65 with (I think) a 250ci 6 cyl and a Powerglide. I've about figured out the engine situation and want to put in a 350. It seems like that ought to bolt in pretty easily. I would like to pair the 350 with a TH 350 or 400. THE QUESTION IS how easily will one of these trans bolt in where the Powerglide was? I'm not afraid of welding but would like things to be as simple as possible ('cause I'm lazy).
I have more of a racing background so the old iron is an entirely new deal. Thanks for the advice, also appreciate any "Lookout!" advice anyone has on the engine/trans swap.
Dave Cox | | | | | Joined: Feb 2004 Posts: 29,798 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,798 | The bellhousing and torque converter is pretty much a bolt-in swap. You'll probably have to fabricate a driveshaft, and possibly a rear crossmember. Given the choice, I'd pick a TH 350, it's lighter weight than the 400. If you want overdrive, try an early-model TH700, before they went to computer control on the converter clutch lockup. The early ones had a vacuum switch and a single wire going to a pressure switch, and the clutch locked in by governor pressure. Later models used the vehicle's engine control computer and the Vehicle Speed Sensor in the speedometer head to control TCC lockup. Lots of wiring headaches with the late-model oners!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jan 2003 Posts: 32 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2003 Posts: 32 | Wouldn't a short tail shaft Turbo 350 bolt in right where the Powerglide was. I think they are about the same length. I think the 350 would work better with a 6 than a 400 would. | | | | | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | I think dimensionally it measures the same. I think you will need a new yoke for your driveshaft.I think the glide and the t350 have different tailshaft splines. It's been a long time, I can't remember all of the little differences,
Scott | | |
|
|
| |
