Removing `87 Smog pump

[M.A.V.]

Does anyone know what length belt I would need to run on an `87 5.0 that already as the A/C compressor removed if I remove the smog pump also? In other words , Stock set up but No A/C and no Smogpump.

Thanks

 

[90mustangGT]

Plug the two vacume lines, remove the pump, remove the lines to the back of the heads and plug the heads. Run a shorter belt.

 

[sgarlic]

I don't know for sure, but it says you need 84.5 with the a/c removed, or 84.5 with the smog pump removed.. it says the stock belt with a/c is 90.5.. so figuring removing each accessory shortens the belt by 6, you'd think you would need a 78.5 belt. Most auto stores are cool with returning belts so long as you don't run the vehicle with the belt on, so if it's not exactly right you could always return it for the correct size.

Anybody know for sure?