[oldman]

Originally Posted by KingLT1

I agree but I believe if the rings were gapped for boost the LT1 rotator would probably go as far as the thrust bearing would allow with a crank driven supercharger. You still have to keep detonation in check also. High cylinder pressure from the high compression will bend rods, spin bearings, and break pistons under load with very little knock. The forged stuff simply provides more cushion for improper tuning. You wouldn't believe all of the gen 5 LT builds shops are putting out on the street that are out of fuel and knocking. I get PM's all the time asking "hey would you look over my tune X shop did this" and usually first thing I see is Injectors 6.0ms +.

Yep

With fuel within the 6ms good power is found, past 6ms and power gets iffy. I’m boosted E85, ligenfelter fuel system (pump, injectors), second fuel pump lp side. Forged engine, I feel sooner or later the hollow 4th journal LT1 crank is going byebye. I’m at 7400 rpm fuel cut just so I don’t need to shift till 62 mph, for in my own mind game mid to low 3 second 0- 60 fun, engine does sound great at 7400. My car hit 7 years old today same engine trans rear. Nutshell so far all good but if I were to do it again, I’d get a lt4 or aftermarket crank at my power level, D1x, cam, built engine.