Vanning.com logo
Boxdin
Site Navigation


Advertisements
Recent Posts
Selling my 89 Ford E150- $3000 Tacoma, WA
by Reed. August 19th 2019 5:38 pm
Boogie Affair "Van's A Rockin" Greenfield MA
by BLJ4EVER. August 19th 2019 5:17 pm
Knightmare Vanners Inc.Presents BFE 8 Knightmare Before Christmas
by Keep_On_Truckin_WNY. August 19th 2019 3:02 pm
DrvnCryn
by Just4fun1991. August 19th 2019 10:57 am
88 G20 slow resurrection
by Wedgy. August 19th 2019 8:49 am
Aug 31 drive in night in SC
by NEmery. August 19th 2019 8:39 am
BBC headers?
by NEmery. August 19th 2019 8:34 am
greensboro nc clubs?
by NEmery. August 19th 2019 8:22 am
for your consideration..
by Deathorvictory. August 19th 2019 12:35 am
What Did You do To your Van Today?
by frscke1. August 18th 2019 7:18 pm
Featured Links
Vanning.Com is a an authorized Amsoil Dealer


Previous Thread
Next Thread
Print Thread
Rate Thread
Best Performance GM Automatic Transmission #750511
July 10th 2019 5:49 pm
July 10th 2019 5:49 pm
Joined: Oct 2012
Posts: 188
Oh' Canada
Callahan Offline OP
member
Callahan  Offline OP
member
Joined: Oct 2012
Posts: 188
Oh' Canada
Hello fellow Vanners,

I am looking to replace my stock GM transmission in my 1977 GMC G20 Van (350 CID).

What do you guys recommend for just street performance?

The first names that come to mind are B&M Transmissions, TCI Transmissions and GM Performance Transmissions. Also what transmissions are you guys running in your GMC & Chevy vans?

Thanks, for your help.


B&M automatic transmissions

TCI transmissions

GM performance transmissions

shift

Last edited by Callahan; July 16th 2019 7:17 pm.

"KEEP ON TR-R-RUCKIN'!"
Re: Best Performance GM Automatic Transmission [Re: Callahan] #750512
July 10th 2019 6:07 pm
July 10th 2019 6:07 pm
Joined: Jun 2010
Posts: 14,401
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 14,401
Van Diego California
I run a 4L80E in both of my rides


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: Best Performance GM Automatic Transmission [Re: Callahan] #750517
July 10th 2019 8:19 pm
July 10th 2019 8:19 pm
Joined: Feb 2016
Posts: 294
Portland, OR
D
Deathorvictory Offline
enthusiast
Deathorvictory  Offline
enthusiast
D
Joined: Feb 2016
Posts: 294
Portland, OR
I assume you have the TH350? Those are pretty stout transmissions in stock GM form, even better with shift kits. You can upgrade the torque converter to one from the TH400 for a bit more robust unit. Are you planning on putting lots of HP through it? One nice upgrade you could do is to go to a 700R4 for an overdrive. The 4L80E requires a computer to run it, which can add undo complexity to a simple solution.

Just my $.02


1979 Dodge B200 Shorty, 1987 B250 Longy
Re: Best Performance GM Automatic Transmission [Re: Callahan] #750545
July 11th 2019 5:13 pm
July 11th 2019 5:13 pm
Joined: Jan 2014
Posts: 557
Staunton, VA
kursed Offline
addict
kursed  Offline
addict
Joined: Jan 2014
Posts: 557
Staunton, VA
All depends on what type of "performance" you're after. TH350 in my G van. Are you looking for a street/strip trans, fuel economy, overdrive interstate cruiser? All models of transmissions have ups and downs. Just have to find one that fits your specific wants and needs.


[Linked Image]
Re: Best Performance GM Automatic Transmission [Re: frscke1] #750680
July 16th 2019 7:20 pm
July 16th 2019 7:20 pm
Joined: Oct 2012
Posts: 188
Oh' Canada
Callahan Offline OP
member
Callahan  Offline OP
member
Joined: Oct 2012
Posts: 188
Oh' Canada
So, your running just the stock OEM transmission. No, upgrades or kits?


"KEEP ON TR-R-RUCKIN'!"
Re: Best Performance GM Automatic Transmission [Re: Deathorvictory] #750682
July 16th 2019 7:32 pm
July 16th 2019 7:32 pm
Joined: Oct 2012
Posts: 188
Oh' Canada
Callahan Offline OP
member
Callahan  Offline OP
member
Joined: Oct 2012
Posts: 188
Oh' Canada
Your correct I have a TH350. I like the idea of keeping the stock tranny and upgrading with a shift kit and torque converter. No, on putting a lot of horsepower to it. I am just going to keep it simple with no computers.

Thanks, for your $.02


"KEEP ON TR-R-RUCKIN'!"
Re: Best Performance GM Automatic Transmission [Re: kursed] #750683
July 16th 2019 7:36 pm
July 16th 2019 7:36 pm
Joined: Oct 2012
Posts: 188
Oh' Canada
Callahan Offline OP
member
Callahan  Offline OP
member
Joined: Oct 2012
Posts: 188
Oh' Canada
I have a TH350 in my G20. I am thinking, just street and interstate cruiser.

Last edited by Callahan; July 16th 2019 7:37 pm.

"KEEP ON TR-R-RUCKIN'!"

Moderated by  Astro 

Donate


Upcoming Events
discovery
Who's Online Now
0 registered members (), 2 guests, and 3 spiders.
Key: Admin, Global Mod, Mod
Newest Members
Taco_Bandit, Supersix, Joe750, G30CamperLance, Nikoli
11079 Registered Users
Top Posters(30 Days)
NEmery 50
frscke1 50
CatFish 43
kursed 35
Wedgy 30
Forum Statistics
Forums68
Topics36,243
Posts523,134
Members11,079
Most Online177
May 8th, 2013

Powered by UBB.threads™ PHP Forum Software 7.6.1.1