Quote:
Originally Posted by radz28
... it sounds like the limitation was the half-thrust bearing, instead of a full-bearing, like on LSs. RPM takes many a little past 1000 (mostly Procharger builds), though I think there was a recent Maggie 2650 CT5 Fran pushed past 1000. Anyways - it seems like you'll be near a threshold where you want to end up.
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We took my OEM short block apart after making 875-900 wheel, and found that it had not been happy. The front thrust bearing was dying, a lifter had seized, and the ATI balancer /pulley had come apart. My new motor uses a solid balancer, KaTech pump, and stronger parts.
For reference, my 2001 LS1 346 block made 900 on a procharger and N2O.
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2020 ZL1LE A10.
LME LT4 390 short block, LME CID Heads, Kong E2650, FBO.
15" conversion, MT ET Street R 325/15.
100 octane: 1045hp/1055tq.
100 octane + Meth (1x10+): 1117 hp/1067 tq