My g/f's cavi is ready to die.....plus i just want to do this swap b/c i know its been done and the results can be outstanding in performance...I have a used L67 block (3.8L Supercharged)(i had a new one put it in this fall its out of my GTP) in my garage and wanted to rebuild it and swap it in my girlfriends cavi..I know i need a better transmission, hers is bad anyways and a stock cavi tranny couldnt take that power anyway..Does anyone have any suggestions or tips if they have done this swap or know of any write-ups on it??

Thanks.

Try going to
http://forums.motorswap.org/
One of the forums is "J-body Think Tank". There's guys in there that have done the swap.

And if it's an 00+ 5spd cavy. Yes, the stock tranny WILL hold that much power. ;)

Try going to
http://forums.motorswap.org/
One of the forums is "J-body Think Tank". There's guys in there that have done the swap.

And if it's an 00+ 5spd cavy. Yes, the stock tranny WILL hold that much power. ;)

Ok thanks for the link...she has a 97 w/ the 4speed auto so it wouldnt hold up very well....especially if you mod the engine very much...so ill probably need to beef it up a bit with new gears and bands and stuff....

Max input on the 4t40 and the 4t45 (which should be really easy to convert to) is supposed to be 325 ft/lbs. So you'd be under the limit, but barely. I'm sure there's a way to get the 4t65e-hd in there though, i've seen it done before.

Or, one guy runs a Getrag 5spd with a 3.4" pulley and some N2O.