Hey guys, I have a 1986 chevy lwb c-10 and thinking of upgrading to tpi with the 12200411 computer.

I'm planning to rebuild to 383, will vortec balancer work with the 383 crank(internal or external balance)?
Plus I have 350 transmission what kinds of mods would I need to run this combo? Should I just stick to the older computer. I just love the thought of having an older truck with OBDII. Thanks in advance George.

I'm planning to rebuild to 383, will vortec balancer work with the 383 crank(internal or external balance)?
Plus I have 350 transmission what kinds of mods would I need to run this combo? Should I just stick to the older computer. I just love the thought of having an older truck with OBDII. Thanks in advance George.
Junior Member
Take a look at this post:
https://www.thirdgen.org/forums/tpi/...-opinions.html
It should have the info you need. From what I recall the balancer shouldn't be a problem (with the vortec timing cover).
I can't recall what if any mods can be done for a 350 transmission since I don't believe it's electronically controlled. An aftermarket lockup kit may work. Check out this link for more info:
http://www.eficonnection.com
https://www.thirdgen.org/forums/tpi/...-opinions.html
It should have the info you need. From what I recall the balancer shouldn't be a problem (with the vortec timing cover).
I can't recall what if any mods can be done for a 350 transmission since I don't believe it's electronically controlled. An aftermarket lockup kit may work. Check out this link for more info:
http://www.eficonnection.com