The L61 cams are compatable with the the LSJ cams but the LSJ cams run at different timing. Does this require a tune? Also, would the stock L61 valves and springs work with an LSJ cam, or would they also have to be from an LSJ? Also does anyone know what the performance gain of this swap is?

 

Yes, this will need a tune to run most likely. Why you going with a LSJ cam? Yes the valvetrain will withstand the LSJ cam

 

Just exploring the options.

 

if i remember right, the lsj and the l61 have the same profile, just different timing.

 

Well if you want to get a good gain. Go with the comp cams stage 1 and get it tuned or go stage 2 if you want but you will have to get a 2.4l manifold and tb

 

Same profile. You can get the adjustable cam gears though and play with the timing that way.

 

correct. im not positive, but i think both engines have the same valvetrain also with the exception of different valves

 

go with stage 2 comp cams. Its the only way lol