Lt1 to Ls1 T56 swap in need of specifics.
#1
Lt1 to Ls1 T56 swap in need of specifics.
I have a built Lt1 T56 w/ a twin street clutch, the whole package has about 350 miles on it. I would like to switch to a Ls1 and I have read that I will need to switch the bellhousing, front plate and input shaft. I understand why this needs to be done. But I would like to keep using the clutch setup I have. The bellhousing will bolt to the ls1 block but will be missing 1 of the 6 attachment bolts (no different than a th400 swap) correct? If I bolt them together like this the input shaft will be .400" short correct? Gm makes a crankshaft spacer that is used to bolt on the 4L80E. With this and a custom pilot bushing, wouldn't this swap work (I am not sure about the ring gear to starter interface)? Or if I switch to a Ls1 input shaft (which I think is ~1" longer) no crank spacer and add and spacer to the bell housing wouldn't this work as well? Is there any difference between the Ls1 and SBC crankshaft bolt circle I think I remember that the Ls1 is 3.11" and the SBC is 3.00"
In my mind this seems do able????
In my mind this seems do able????
Last edited by 355ss; 11-21-2006 at 08:46 PM.