Ok I've done the research and it is not clear!!!! I just passed on a 98 LS1 T56 Camaro because I can't get the Facts straight on LS1 to 240 mounts. I've owned /raced 5 240's in the past and want to jump into an LS1 swap. Here is what the search has turned up so far..... Please contribute factual knowledge not "well I heard that.... opinion"
JCI- a lot out there seems to work well but is a bugger to install and I've run across a few complaints of poor fit and crappy hardware. works with steering shaft and headers... read a few posts of busted motor mounts.
Dirty dingo- Easier to install and works with headers but requires modification of steering rack..... or not, I found a least two posts that indicate the rack worked just fine? Have not seen a completed build...
CX racing- have not seen a completed build and I have no reference for headers or steering rack... designed in the US but manufactured in China??? so quality issues? Trans mount will most likely "not fit in 240 tunnel"
Hawks third gen- "best mounts......" plenty of clearance but only work with "Hawks long tube headers".... or not, I ran across a post here on hybrid that states "JTR/Sanderson headers fit just fine with plenty of clearance.... what the hell!
DIY- Why re-invent the wheel when the at least one of the above will work....
So back to my topic post, I would love to have some input on what really works! Knowledge is power and opinions are like butt holes... everybody's got one. So if you don't know what your talking about first hand, don't add to the confusion.
My car is a rust free (at least by Datsun standards lol) 72 240Z..... Thanks. Jim "trackzpeed"