Hi All. A few years back I swapped my built 305 TBI into a 1978 El camino. Brought it right to life.
The TH350 transmission is tired though. I happen to have a 4l60 on hand from a v6.
I was wondering if it is too difficult of a swap.
I realize the tranny might not be as strong as one from a v8 but this is more of a sunday driver.
Am I correct in saying the 4l60 does not need a PCM?
It is not a 4l60E, Just a 4l60.
Thank you all.
Funds are kind of tight but would love to see it running this season
Old School GM fan FOREVER
Edited by rockfangd on 04-02-21 06:34 PM. Reason for edit: Incorrect year
i would think that if there is no plug connector there is no tcm. adjustment of the cable may be important. is it a mechanical speedo? driveshaft may be shorter and x member may be different. shifter may also be different. i would toss in a shift kit while its out.
70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails.
I never did end up trying a 4l60. Owner swapped the TH350 for a rebuilt and still cannot drive it. Has been one problem after another. It feels to me like it stays in 2nd gear. Will not shift.
I have had governor apart, new vacuum modulator, verified 15hg vacuum to modulator. Have not resolved the issue. been over 2 years without being able to drive it
if it has a tv cable, proper adjustment is paramount. there are some brackets on the market that take the thinking out of adjusting. good luck.
94 Z-28 Ram Air
75 El Camino SS (Betty)
76 el camino (Veronica)
77 El Camino SS (Getting a 454)
58 4 dr Yeoman (Nadine)
57 4 dr 150 (Dottie)
53 4 dr tradesman (Tupelo Honey)
and they're all....
Positively Fourth Street.
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