The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Installing newer 350 vortec engine in 1983 C10, Help and advise!

rfmaster · 05-26-2012, 01:15 AM

The TV cable for 700R4 will be major Pita. The 96 Vortec was backed by 4L60E which does not require TV cable - it's controlled by PCM. You'll have to fab TV cable bracket for TB throttle arm and mounting bracket for the intake manifold. Getting correct TV cable geometry will be interesting.

IMHO I would ditch 700R4 and find 4L60E instead. Just make sure that your trany wiring harness was set up for 4L60E. IRC the 4L80E plug is the same as 4L60E but pin out is slightly different!

http://www.powertraincontrolsolution...TCM4100SCH.pdf

The OBDII PCM will have to re-flashed to handle 700R4 functions. You may need to contact shop that specializes in custom OBD-II PCM programming and modify harness to match 700R4 requirements.

05-26-2012, 01:15 AM	#2
rfmaster Registered User Join Date: Oct 2003 Location: OC CA Posts: 1,374	Re: Installing newer 350 vortec engine in 1983 C10, Help and advise! The TV cable for 700R4 will be major Pita. The 96 Vortec was backed by 4L60E which does not require TV cable - it's controlled by PCM. You'll have to fab TV cable bracket for TB throttle arm and mounting bracket for the intake manifold. Getting correct TV cable geometry will be interesting. IMHO I would ditch 700R4 and find 4L60E instead. Just make sure that your trany wiring harness was set up for 4L60E. IRC the 4L80E plug is the same as 4L60E but pin out is slightly different! http://www.powertraincontrolsolution...TCM4100SCH.pdf The OBDII PCM will have to re-flashed to handle 700R4 functions. You may need to contact shop that specializes in custom OBD-II PCM programming and modify harness to match 700R4 requirements. __________________ "The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17)