I plan to do naughty things....my dream car is a 87 monte with a 454, but i found a monte for 200$ with a blown motor and tranny...i dont have much money and it would just so happen that i have a buick 455 with a th400 tranny...i would like to know what it would take to get this motor and tranny in the monte, can i buy a conversion kit for 305-455? can i make one? Will the new setup fit right in, any and all info would be great. -thankyou

I'm not sure if there's a conversion kit or not. I'm sure it can be done though - my buddy just put a 450 hp 396 in his 86' monte!

Yeah if you can get any info from that guy, that would be great. I think this would make a great combo. If any one has any info let me know please.

Sure. I work with him - I'll ask next time we work same shift.

alright, that would be great!

My guess is that you would need to get some new motor mounts. You may have to even weld them in a new location. You should definently add some fram support if you're throwing in a 455. Also, you may need to hammer out a spot for the distributor.

thanks for the info, do u know about how many motor mounts their are? I dont think ill need to hammer anything, the distributor on buick engines is in the front....do u think i can just hook up the th400 tranny, or will i have to get a new/custom driveline? and where would i put the supports?-thanks again

2 motor mounts, left and right.

Your tranny supports may be off with the new setup. You may also need a shortened driveshaft..

Try www.montecarloss.com (http://www.montecarloss.com). There's a ton of experience on BB motor swap there