I have a 92 Z 350 TPI, I just got my march power and amp series pulleys, the crank and alt pulley. I have no smog and I cannot find out anywhere what size of belt I need. I have e-mailed march, and other performance shops and also posted topics on my local f-body site, no one can help me. If anyone out there can help me out with a PN or size I need for a 6 rib belt please do, I've have these pulleys for about 4 days now and I am getting VERY impatiant. Thanks for ur help.

Jeremy Keathley
Wichita, Ks

 

Wow. This is a new one. Smog removal PLUS underdrive pulleys . . . I don't know. Go buy the Dayco listed in the smog removal tech article and buy the next size above and below that. Put them on the car and test them out. Once you find what you want then return the other 2. Most parts places are coo about returns - just save your receipts.

Does anyone remember how the tensioner marks are supposed to line up on the tensioner pulley arm? I can't remember, I just know that to find the right belt the marks have to line up some funky way. Someone wiser than I might know the answer . . .

 

https://www.thirdgen.org/newdesign/tech/

here's the tech article with picture to route the belt. it's states it in the article for under drive pulleys use 935k6.

 

well i have a belt that should work. i'll let u know if it did work as soon as I can get that %$#@ crank pulley off