Thread: L31R complete or ZZ4 short block
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Old 02-13-2019, 03:18 PM   #2
Warrens69GMC
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Re: L31R complete or ZZ4 short block
I'm going to go ZZ shortblock, Summit heads 72cc and comp 08-502-8 camshaft

https://youtu.be/KFaw1_TJ7WM
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