Is it worth messing with an '85 core for a mild street car? I uderstand that you should avoid the 82-84 completely, but I am not sure of the problems (if any) with the 85-86 models. The car in question is a Chevy II (light... around 3000 pounds), with a mild SBC (currently a 327... 5500 rpm max).

I have this core from an '85 Caprice and I'd like to rebuild it. Am I wasting my time? I'd like some opinions from the OD pros!

 

BTTT

 

They had part throttle shift timing issues in many cases, they have no forward accumulator, smaller input sprag, less 3-4 clutch capacity when trying to add additional clutches, narrower low reverse roller clutch, etc. Use a 1988 & up unit, to start with.

 

I have the '85 core, and I am not putting lots of power through it. Is it REALLY that bad? I don't want to hunt down / buy another core if I do not have to.