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2009-2010 5.7l (vvt) Ati 15% Ud Pulley

1.9K views 3 replies 2 participants last post by  mskrine  
#1 ·
Has anyone completed this mod(alone or with a heads/cam upgrade) and are able to suggest the belt I would require after UD pulley installation?

Regards,
Mark
 
#2 ·
How about this question, how much slack does the belt tensioner "suck up", would the belt tensioner accomodate the stock belt with a 15% UD pulley??
 
#4 ·
With the 6.1L and I believe the 6.4L or 6.2 L using smaller diameter crank pulleys, could I get close enough using their serpentine belt??? I better do some research on their pulley sizes, but, your thoughts. I have heard of people using a 6.1 crank pulley on a 5.7 as a UD pulley.