chpr1972
03-21-2021, 05:50 PM
I was thinking of replacing my TKO600 with a 4L80. Yes, I know, but I have a bad left ankle and other health problems so it is getting about time. I wanted to buy a later model used one with converter instead of an early one so I did not have to have it rebuilt. First, what are they, and what are the hidden parts that will be expensive. Like I was told it would bolt right up to my BBC using a flexplate that I already have. then I found out yesterday that I need a special adapter or special flexplate that costs in the neighbor hood of 300 bucks. Then I find out that the old bent lines from one of my old automatic transmissions will not work. What do I have to do to put cooler lines on it? What does it cost. I have a 400R4 shifter out of a 89? Camaro I was going to use. So can I use that shifter and cable? Do I need to buy a specific lever at the transmission? I know about buying a transmission controller and drive shaft might not fit. But the yoke should. I have a Centerforce crossmember I plan on making work. Then I heard that you have to have a throttle position sensor on the carb. That will not be a problem for me, as I have a HP EFI. My radiator has a transmission cooler, and I hope to use it. I just can't afford expensive surprises. I guess I will detune my 489 BBC to 427 and a 700R4 .The reason why I wrote this is to let other people know what are the hidden surprises that will pop up and what they cost.