Got a stall, next step ?
https://ls1tech.com/forums/automatic...8-install.html
I believe the 70264 is rated at 14.4 K, it does have the cold coolant bypass feature though.
My two main concerns with bypassing the stock cooler was under heating in cold and over heating in hot weather if the cooler was too small. Like I said, I was never told an exact rating, but I chose the 70266 which has a 20.5 K BTU rating. (You can get the 70274 - 29.2K BTU and it should fit mounted the same as I did).
And I try and wait til the engine is warmed up before hard driving, saves the tranny and the H&C with stiffer springs.



