Help with Serpentine Belts!

[K_ddsl]

Hi everyone,

I ran into a small hiccup with modding my truck.

I purchased an SLP U/D pulley and an alternator O/D pulley.

I looked everywhere to find the correct size belt/brand/part numbers (2 belts needed) for my setup and can't seem to find it.

SLP's website has the sizes for 5.3 and 6.0 engines but not for the 6.2 L92.
It also says that belt sizes for U/D pulley alone are different than those with both U/D and O/D pulleys.

Another website hinted that the 6.2 uses different "stretch" belts than the 5.3 and 6.0.

Would anyone be able to guide me on this?
Would be great if someone can provide brand and part numbers.

Thanks in advance.

 

[K_ddsl]

Ok guys, to put this issue to bed...
I installed my cam and pulleys and after quite a bit of trial and error at the shop, we arrived at the correct belt sizes for those who want to do this without retrofitting a tensioner pulley.
The main serpentine belt is the 6PK2240 (Gates Micro V Part Number K060882 or Goodyear Gatorback Poly V Part Number 4060882).
The A/C belt is the 4PK870 (Gates Micro V Part Number K040343 or Goodyear Gatorback Poly V Part Number 4040342).

Remember this is for GM SUV GMT 900 with L92 engine and SLP 25% underdrive pulley (PN 100230A) and an alternator overdrive pulley mods.

Hope this info will be useful to someone trying to go for the same mods.

Cheers feelas.