[Kudzupatch]

FWIW I went through this and there is no right answer, best answer is it depends.

I have a very nice 93 Suburban so I have TBI. 230K on the engine and still runs great. Uses about a quart every 3K miles. If it were not or the rod knock before oil pressure builds I wouldn't do anything.

I looked at all the options. LS is interesting and i would like to do the swap. But since I want to tow with it I didn't want to go smaller so I really wanted to 6.0.

Installation is much more work, a lot more work. All the adapting and wiring. Then as a buddy who has done 3 conversions pointed out they can nickel and dime you death. All the little things you don't foresee. When I totalled up the cost and even going low on the unexpected it came out to 3,000-3,500 if no major surprises. That is a used engine I know nothing about.

I can buy the L31 engine which comes with roller cam, one piece rear main and it is a new engine, not rebuilt and with a warranty for $1,800. Install is so much easier. I want to keep the TBI so there is a little extra work there. But all the accessories, wiring, ect work. So labor is much less.

Weighting the cost, extra work and it just didn't make sense. Sure it is cool to have an LS but I just don't see the gain being anywhere near worth the extra effort and cost for me.