Serpentine belt length
06-08-2014, 01:18 AM
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Serpentine belt length
I need to replace the serpentine belt on my 1990 formula 350. Problem is I have been looking for a while now and everything I read says a different length. What is the exact length? It's a bone stock motor so whatever stock is that's what I need. Thanks in advance.
06-08-2014, 03:29 AM
#2
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Re: Serpentine belt length
You need a Gates P/N K060945 or equivalent. Nominal length 95-1/8".
Keep in mind that belt manufacturers will try to make one part number fit as many applications as possible. This is why you see different lengths. The belt tensioner should be able to accommodate these differences.
Keep in mind that belt manufacturers will try to make one part number fit as many applications as possible. This is why you see different lengths. The belt tensioner should be able to accommodate these differences.
Last edited by paulo57509; 06-08-2014 at 03:36 AM.
06-08-2014, 08:16 AM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Serpentine belt length
How about a factory part number
06-14-2014, 03:32 AM
#5
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Re: Serpentine belt length
This shouldn't be this hard. Since your engine is stock why are you trying to find a belt of a certain length? Just buy one for your application and it will fit.
http://www.rockauto.com/catalog/x,ca...,parttype,8900
Looking at he link, it appears that lengths of the four "Standard Replacement" belts (you don't want the "Economy" ones) differ by 3/4". Regardless of whether it's "effective" length and "overall" length, the belt tensioner should accommodate this small difference in length.
The Gates part (K060945) description actually lists, "Formula".
http://www.rockauto.com/catalog/x,ca...,parttype,8900
Looking at he link, it appears that lengths of the four "Standard Replacement" belts (you don't want the "Economy" ones) differ by 3/4". Regardless of whether it's "effective" length and "overall" length, the belt tensioner should accommodate this small difference in length.
The Gates part (K060945) description actually lists, "Formula".
06-14-2014, 08:18 AM
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Car: 87 IROC
Engine: L31 350
Transmission: T56
Axle/Gears: 4.10 D44
Re: Serpentine belt length
The length is slightly different based on which routing you use. Based on the pictures, I believe the 89 routing uses a longer belt.
Example; If the belt is too long for the 88 routing, try the 89. Likewise, if too short for 89, the 88 route might work.
Example; If the belt is too long for the 88 routing, try the 89. Likewise, if too short for 89, the 88 route might work.
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