I'm looking for the length of the serp belt to run only the w/p. It's stated in the gm ls1 swap book but I can't find my book right now. It's probably right where I left it which is unknown to me right now. It goes around the crank pulley w/p & tensioner. I think it said 1085 in length but I'm not sure. Just like the location of the book . Any info is appreciated. It's getting warm out so I need to get this done so I can go out and break something.

 

No alternator?

Sounds too long. Going around the crank pulley, idler pulley, alternator, PS pump, water pump, tensioner, and relocated Sanden AC compressor was only 101".



Not that hard to wrap a string around everything, measure the string, and get a few belts in that length range. Hopefully you have a parts store that is willing to work with you on stuff like this so you can return the unused belts.

 

mine is alternator, crank, tensioner and water pump
52.5" long

 

Thanks for the input. The 1085 is mm not inches. 52.5 sounds reasonable. My car is at point "b" right now I'm at point "a" and won't get there till the stores are closed. The alt has a custom mount f body loc. but runs off of 4 rib a/c belt loc. w/ sep tensioner. It's an lq4 motor so I used the truck pulley & made a custom mount.

 

Ah. The ones I was looking at had the length in inches and the number of ribs tacked on for a part #.