extended crank flange engines OK??

Has anyone used a extended rear crankshaft flange engine, like an early 6.0L LQ9 for a swap? Is there anything that may cause problems?? I understand the crank flange extends about 1/2 inch from the block, where the LS1 is close to flush.
Any advice?

Gordo.

...thinking of another swap.......

I know all the swap parts are based on the shorter crank. I haven't heard of TPC making any adapters for the long crank. I think the biggest issue will be the flywheel/clutch setup. And the pilot bearing adapter would need to be considerably shorter as well.

i recall someone here ended up with a long crank engine by mistake, and they had everything bolted together and ran into issues when the starter wouldnt mesh with the ring gear because the flywheel is pushed back that extra 0.400".

these engines used a specific flywheel in the trucks, and it was rare to see these engines mated to a manual. a typical ls flywheel will not work, iirc mcleod does (or did) make a conversion flywheel to use one of these engines with a normal ls starter and it would work with a typical f-body t56. this also should work in a 944 swap.

my advise is look for another engine. these arent that common, i think it was 2 years of the lq4 only, and those years used cast iron heads. its about the least desirable ls engine out there.

Sharkey that was me. The motor came with the car. I did't know any better till I was to deep into it. I had to get a different flywheel and made a .400" spacer out of poly to make it work. I drove the car about a 1000 mi till I sold it. I have a post about it somewhere on here. I would not recommend doing it.