1972 K10 --Help me decide 5.3/4l60E swap or 700R4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

suburban99 · 08-03-2016, 02:41 PM

Hey all, just picked up a 1972 K10 custom deluxe in decent shape. Currently 350/350 and runs great.
Recently rebuilt engine and tranny by PO..running 33"x 9.50 x15 tires and it has a lot of power so I suspect it has 4.10's

I am trying to decide whether to do a 5.3/4l60e swap or just replace the tranny with an 700r4 (or 2004r---have core). Trying to get the rpm's down a bit and mileage up. I did a 5.3/4L60e swap on my 62 C10 before I sold it and it was great..I can do the re-pin of the pcm...

Anyone care to share their 700r4 or 5.3/4l60 mileage numbers? Thanks

08-03-2016, 02:41 PM	#1
suburban99 Registered User Join Date: May 2014 Location: Mission BC Posts: 452	1972 K10 --Help me decide 5.3/4l60E swap or 700R4 Hey all, just picked up a 1972 K10 custom deluxe in decent shape. Currently 350/350 and runs great. Recently rebuilt engine and tranny by PO..running 33"x 9.50 x15 tires and it has a lot of power so I suspect it has 4.10's I am trying to decide whether to do a 5.3/4l60e swap or just replace the tranny with an 700r4 (or 2004r---have core). Trying to get the rpm's down a bit and mileage up. I did a 5.3/4L60e swap on my 62 C10 before I sold it and it was great..I can do the re-pin of the pcm... Anyone care to share their 700r4 or 5.3/4l60 mileage numbers? Thanks Attached Images __________________ 1962 C10 Longbox LS 5.3 4L60E----Sold$$ 2014 Ram 4x4 3500 Laramie Diesel..Momma's truck 2015 Ram 4x4 1500 1997 Boxster. 1972 K10 Custom Deluxe LS 6.0 1950 GMC 3100 S10 & LS swapped



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