swaping in a 454 bbc

I am probably going to be swaping a 454 into my 77 chevy k10...it has a 400 sb in it right now but has been giving me so many problems....blow by, loss of compression...and i think think the block might even be cracked because of white smoke out of the pipes. My question is will I be able to just swap in the 454 without any fear of trashing the tranny...I have a th350 w/np 203 t-case. I have read abunch of threads saying that you need to beef up the th350 for people that have 600hp big blocks. But, I am not looking to drag my truck, I just figure if im gunna get another motor I might as well go with a big motor that is gunna sound mean. All I plan on doing is just boring out the block to get whatever lip is there and then just go with a basically stock piston, new gaskets and headers. Will this pretty much stock 454 be alright against my new/stock th350?

also....I no that a truck is not a muscle car..but im just tryen to get my thread out there for an answer

I dont think you can even bolt up a TH350 to a 454 unless theres some kind of kit to do it. The TH350 was a small block tranny and I doubt there are bell housings out there to mate up to a 454. But like I said there may be a conversion kit so look around before you do the swap. Good luck. Steve

well the bolt patterns for the block were the same on the v8s...and I know that you can bolt up a th350 to a 454...but I was just worried about the power output of the 454...just a basically stock 454

I dont think you can even bolt up a TH350 to a 454 unless theres some kind of kit to do it. The TH350 was a small block tranny and I doubt there are bell housings out there to mate up to a 454. But like I said there may be a conversion kit so look around before you do the swap. Good luck. Steve

There is no such thing as big and small block chev trannies, they both use the same bell housing size and pattern

don't waste a good bigblock on an s10 it will tear it apart plus you'll have to engineer your whole driveline and exhaust and the first time you go 4 wheelin the turbo 350 will be toast it would be cheaper to rebuild the 400 put in a lumpy cam and save the bigblock for a muscle car project