Help! Engine Belts set for Corvette 1975 SB, which one to Use?

[GiuG]

My mechanic, drop me a message, is a bit puzzled on which belt is mount on a Corvette 1975 and which motor oil the car needs... I ignore the tech behind this, I was thinking that for a mechanic is a straight forward job... I'm honest with you, I`m start to be worry about my car Anyone can suggest me the right full engine set for a corvette small block 1975 and engine oil?
Thank youuuuuuuuuuuu!

 

[Oneball]

Valvoline VR1 20w50 is what I use.
Belts aren’t that simple as it depends on what options the car has assuming it’s as it left the factory anyway.

 

[Roscobbc]

100% in agreement!

 

[Roscobbc]

Best post up a photo of the front of your engine compartment as belt driven accessories and length of bets themselves can change depending on things like a/c and alternator positioning. Someone should then have an answer for you.

 

[GiuG]

Oil received strong and loud! Thanks! Well the car is with the mechanic, so I can't make a photo, this is what I have so far (sorry is not aim in the right spot), the car does not have the A/C compressor and the alternator in on top left side, it has no tensor, the configuration is pretty basic, I think. Any direction, such brand and type, will be great. At least the mechanic will recognize the length, at least... I hope!! Thank you for your help

 

[Forrest Gump]

You might be able to find a code printed on the belts that are currently fitted?

GATES are a commonly used brand. Doing a search for a ‘75 Corvettes on Gates belts website shows as follows:

Fan & alternator belt
part no 7525 non-a/c (52.5” long x 13/32” wide)
part no 7535 a/c (53.5” x 13/32”)
Power steering belt
7360 (36” x 13/32)

GATES GLOBAL ONLINE CATALOGUE

Provides easy access to identify Gates OE quality parts fitting your vehicle, anywhere around the world. Contains detailed information for each part, 360 images, dimensions, diagrams, technical videos, bulletins and installation tips.

navigates.gates.com

As has been said above, you never know for sure if any of your pulleys have ever been changed, hence trying to get a code from what is currently on the car is a good starting point, provided of course they are a good fit ie toward the middle of the tensioner adjustment range.

 

[GiuG]

Awesome, this is gold, thanks!!! I'll check with the mechanic the code cheeers!!!!