need 454 drive belt identification help (TBI - No A.I.R)

Started by kattkisson, May 28, 2015, 06:12 AM

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kattkisson

I have a 1992 454 with TBI.  I has no air pumps etc.
It has 3 drive belts.  The serpentine mutligroove flat belt drives the fan and alternator and takes a Napa 25-060525;  The AC is driven by a v-belt that uses the hydroboost/ps as an idler and goes around it's own sheave on the fan shaft.  It takes a napa 25-7603 which has the following dimensions--13/32 X 60 5/8".


The remaining belt is where my question is.  It is from the crank to the hydroboost/ps. There are no other wraps or idlers   I am currently running a Gates 9415HD which has a 1/2" top and is somewhat around 40" around. 
This belt is too wide and as such presents an interference It sets to high in the pulleys.  I think I need a belt with the same top dimension as the AC belt which is 13/32"
This set up doesn't show up in NAPA's computers.  Can anybody help me out with a belt # that even if not napa's I can cross?  Thanks in advance.

cncsparky

A 15410 belt is 3/8" wide and 41".  Gates 1410.  Gates 1390 is 39".  A good parts guy can find what you need.

I used the 15410 on mine.

http://s283.photobucket.com/user/RAT4548/media/RV/New_belts_zpsf4521ee2.jpg.html
-Tom