1990 th400 swap into 1972? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

matt_field · 01-09-2013, 11:55 PM

Hey guys, looking at putting a th400 (3l80) from a 90 3/4 chev p/u, into my 72 swb Chevy. Are the newer th400 the same as the older models? Other than an electric speedo? Thanks!
Posted via Mobile Device

stsalvage · 01-10-2013, 03:39 AM

1990 was still a 400 in most of the big trucks the 1987--92 had 700R4 cable i think in 1992 they went Electric 400.But if your going to try and get good horse power and what it for pulling and hauling keep your 400 and get a Gear vender then you have a 6 speed that gate gas mileage just a though

matt_field · 01-10-2013, 09:39 AM

Thats why i want it, the truck has a gear vendor od in it. Just wondering if they made any changes in 90 to the th400 that would make it a p.i.t.a to install or convert to a old truck. Only thing i could think of would be the speedo if they changed to electric?

Matt

01-09-2013, 11:55 PM	#1
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	1990 th400 swap into 1972? Hey guys, looking at putting a th400 (3l80) from a 90 3/4 chev p/u, into my 72 swb Chevy. Are the newer th400 the same as the older models? Other than an electric speedo? Thanks! Posted via Mobile Device __________________ 1971 k5 blazer 80k mike survivor 1972 3/4 ton 4wd Cummins 12v 1967 swb 2wd 427bbc 1968 4wd shortbox 1971 Cheyenne swb k10 unrestored 1971 Cheyenne super 40k 402bb survivor 1967 Chevy k10 (first truck) 1968 L78 camaro survivor 18k miles 1969 z28 survivor 60k miles 1969 z28 survivor 39k miles 1969 z28 rs survivor 80k miles

01-10-2013, 03:39 AM	#2
stsalvage Scrapper 1 Join Date: Jan 2007 Location: Riverside Calif Posts: 1,649	Re: 1990 th400 swap into 1972? 1990 was still a 400 in most of the big trucks the 1987--92 had 700R4 cable i think in 1992 they went Electric 400.But if your going to try and get good horse power and what it for pulling and hauling keep your 400 and get a Gear vender then you have a 6 speed that gate gas mileage just a though

01-10-2013, 09:39 AM	#3
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	Re: 1990 th400 swap into 1972? Thats why i want it, the truck has a gear vendor od in it. Just wondering if they made any changes in 90 to the th400 that would make it a p.i.t.a to install or convert to a old truck. Only thing i could think of would be the speedo if they changed to electric? Matt __________________ 1971 k5 blazer 80k mike survivor 1972 3/4 ton 4wd Cummins 12v 1967 swb 2wd 427bbc 1968 4wd shortbox 1971 Cheyenne swb k10 unrestored 1971 Cheyenne super 40k 402bb survivor 1967 Chevy k10 (first truck) 1968 L78 camaro survivor 18k miles 1969 z28 survivor 60k miles 1969 z28 survivor 39k miles 1969 z28 rs survivor 80k miles



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.