95 Vortec heads / 7004R - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lukecp · 07-08-2003, 07:42 PM

Max lift is a debated issue....some sources say .450", others say .470"-480". Myself, i have no clue what the max lift is, but i would proably stay it safe and run about .450" or less.

For your 700R4, i would look for a '87 or newer model. In '87 they made alot of changes to the tranny, and beefed it up quite a bit. The older modles are supposed to be weaker and more finicky. They used the 700R4 up to '93 i think, and some models were called the 4L60. After '93, the tranny was converted to computer operation and became the 4L60E.

Good luck!

07-08-2003, 07:42 PM	#3
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	Max lift is a debated issue....some sources say .450", others say .470"-480". Myself, i have no clue what the max lift is, but i would proably stay it safe and run about .450" or less. For your 700R4, i would look for a '87 or newer model. In '87 they made alot of changes to the tranny, and beefed it up quite a bit. The older modles are supposed to be weaker and more finicky. They used the 700R4 up to '93 i think, and some models were called the 4L60. After '93, the tranny was converted to computer operation and became the 4L60E. Good luck! __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

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