Belt size for asp pully?

[keepingthe240]

I've done a search and came up with 290k4 and 385k3 for the asp. unorthodoxracing gave a list for the GATES belts. http://www.unorthodoxracing.com/ it's pully 0210102_ What belt sizes are you using??

[onosqv]

I have the unorthodox pulley. Followed their guidelines:

• Alternator and Water Pump Belt – Use Gates K040355 (36 1/8” or 920MM).• Air Conditioning Belt – Use Gates K040350 (35 5/8” or 905MM).• Power Steering Belt – Should remain the same for most years, otherwise use Gates K030384 (38 7/8” or 985MM)

Everything fits great - no more squeaky squeaky (had a 40360 on the alternator belt). This is for an 89 sohc too.

What you can do is get a variety of sizes (get those rec. sizes, 1 size larger, 1 size smaller, 2 sizes smaller) - will end up costing a grip, but once you get everything fitted, you can return them. Also, autozone is having $2 off goodyear belts til Feb 13th, so go clip a coupon from the paper or on their site (think it's on there). The goodyear belts are hella good, i like em better than oem (seems sturdier w/ their extra grip style - maybe killing the bearings a lil more, but i don't like squeaky squeaky).

[keepingthe240]

Asp uses the stock a/c belt. U/p might use a different design. The inward grove is bigger then the outer 2 grooves. I'll check though.