Quote:
Originally Posted by scottj
I put an LS7 and a T56 Magnum in my E-M this time around. No big deal... mock it up and fab the motor mounts and crossmember. I know a number of SPF/LS owners that cut the flanges off Windsor headers and welded on the LS flanges... port spacing is the same. I fabbed my own headers though.
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what is the difference in bolt spacing on each port?