3.8 SC Swap What Trans should I use . (Page 1/1)
RussellCupples APR 19, 07:55 PM
I have the 1988 Fiero and have a 3800 sc in the shed and wondering which is the best auto trans to use .
Dennis LaGrua APR 19, 08:15 PM
The 4T65eHD is what that engine is matches to. Just watch the model year as every transmission will not shift with every GTP PCM.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

RussellCupples APR 19, 09:07 PM

quote
Originally posted by Dennis LaGrua:

The 4T65eHD is what that engine is matches to. Just watch the model year as every transmission will not shift with every GTP PCM.




TY so very much .I just need the harness to the engine I have and I'm good to go .
What is the best year 3800SC .See if I did good or not

[This message has been edited by RussellCupples (edited 04-19-2019).]