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Username Post: TH350 to 4l60 swap El Camino
rockfangd
"8th Year" Gold Supporting Member
Posts 3105
rockfangd
04-02-21 05:32 PM - Post#2817361    

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

bobb
Super Senior Member
Posts 5790
04-28-21 07:23 AM - Post#2818920    

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.

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