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L695speed · 05-24-2012, 10:22 PM

I am going to run the factory 3.73 rear gear 10 bolt til it blows then maybe the same gear in a Moser or Strange rear end when I upgrade. LT1 T56 94+ spec. The desired RPM is around the same as the L69 but no reason to go above 6500, most likely to be 6-6200 redline. I hate engines that die at 4K. Based on that I'd say the RPM Performer (NOT THE AIRGAP ONE) will be ideal. Eventual power figures with the 383 will be in the 450 range. I will upgrade the clutch when I stroke the motor, but don't see a reason to do it with a 350 ft lb Vortec 350 starter motor hence asking about the stock clutch.

I've read on TGO that the 650 DP Holley would be good for the 350, but I think it would be too small for the final product.

05-24-2012, 10:22 PM	#7
L695speed Join Date: Apr 2009 Location: Andover, NJ Posts: 777 iTrader: (0)	I am going to run the factory 3.73 rear gear 10 bolt til it blows then maybe the same gear in a Moser or Strange rear end when I upgrade. LT1 T56 94+ spec. The desired RPM is around the same as the L69 but no reason to go above 6500, most likely to be 6-6200 redline. I hate engines that die at 4K. Based on that I'd say the RPM Performer (NOT THE AIRGAP ONE) will be ideal. Eventual power figures with the 383 will be in the 450 range. I will upgrade the clutch when I stroke the motor, but don't see a reason to do it with a 350 ft lb Vortec 350 starter motor hence asking about the stock clutch. I've read on TGO that the 650 DP Holley would be good for the 350, but I think it would be too small for the final product. Last edited by L695speed; 05-24-2012 at 10:23 PM.