The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-08-2008, 08:43 PM   #1
ton*loc
Registered User
 
ton*loc's Avatar
 
Join Date: Feb 2008
Location: sioux city iowa
Posts: 178
th350 vs. lock out th350

i tried searching but came up just shy of the info i was looking for.

the guy who had my truck before me just had the lockout 350 rebuilt so i dont want to get rid of it if i dont have to. i was just wondering on a stock rebuild how strong are they ? will they hold just as much power as a old school th350 ?
__________________
1986 chevy c10 in the "build" process as we speak 358 flat tops, vortec heads, .500 lift cam, NOS power shot plate system, yada yada yada



MMA PIX http://www.clgpix.com/MMA/Fighters/F...C/CoteTony.htm
MMA RECORD 24-5
ton*loc is offline   Reply With Quote
Old 07-09-2008, 06:00 AM   #2
D13
Registered User
 
D13's Avatar
 
Join Date: Feb 2007
Location: Memphis MI
Posts: 1,851
Re: th350 vs. lock out th350

The trans guts are the same. The difference is the lock up clutch in the converter and the fluid path for it.

The converter clutch will not withstand heavy abuse, i.e. 400+ hp in 3rd gear with the clutch locked on. It is designed for 5-10% better fuel economy at highway speeds.

there shoul dbe an electrical circuit that shuts off the clutch at high throttle (or low vacuum).

As long as you aren't putting way too much power to it in 3rd gear it should be fine.
__________________
1987 2 ton
1982 250/TH350 beater in progress
Dad's 1981 3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping
Plus a mess o' tractors
D13 is offline   Reply With Quote
Old 07-09-2008, 07:50 AM   #3
ton*loc
Registered User
 
ton*loc's Avatar
 
Join Date: Feb 2008
Location: sioux city iowa
Posts: 178
Re: th350 vs. lock out th350

Quote:
Originally Posted by D13 View Post
The trans guts are the same. The difference is the lock up clutch in the converter and the fluid path for it.

The converter clutch will not withstand heavy abuse, i.e. 400+ hp in 3rd gear with the clutch locked on. It is designed for 5-10% better fuel economy at highway speeds.

there shoul dbe an electrical circuit that shuts off the clutch at high throttle (or low vacuum).

As long as you aren't putting way too much power to it in 3rd gear it should be fine.

well when i got my truck the little four prong plug had been unplugged so the lockout is not even working.
__________________
1986 chevy c10 in the "build" process as we speak 358 flat tops, vortec heads, .500 lift cam, NOS power shot plate system, yada yada yada



MMA PIX http://www.clgpix.com/MMA/Fighters/F...C/CoteTony.htm
MMA RECORD 24-5
ton*loc is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:20 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com