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Pete · 05-12-2021, 03:37 PM

The early blocks are a POOR choice for any rebuild engine. The valves were closer †o the cylinder bore and that was why they were famous for cracking in that area.
As far as the cam index difference, you will never feel it in the seat of pants. It is barely notable on the dyno.

05-12-2021, 03:37 PM	#5
Pete BANNED Join Date: May 2010 Location: Wa. Posts: 5,423	Re: Pre 1945 Block Cams The early blocks are a POOR choice for any rebuild engine. The valves were closer †o the cylinder bore and that was why they were famous for cracking in that area. As far as the cam index difference, you will never feel it in the seat of pants. It is barely notable on the dyno.