LS vs Vortec belt drive
Thread Starter
Teching In
Joined: Mar 2017
Posts: 13
Likes: 0
LS vs Vortec belt drive 
I got this AC mounting bracket for an LS and the pulleys dont appear to line up Its an easy fix I just have to get a few longer bolts and spacers. I just need to know how much further from the engine the Vortec belt drive is than the LS belts
TECH Senior Member
Joined: Jun 2016
Posts: 22,298
Likes: 3,619
From: Central Cal.
WHICH LS belts? Gen 4 F body or Corvette? There are 3 different spacings.
(1)Truck and Gen 5 F body (farthest out),
(2) Corvette (closest),
(3) Gen 4 F body (between the other 2). CTS/V and GTO fit in there too but can't remember exactly where.
(1)Truck and Gen 5 F body (farthest out),
(2) Corvette (closest),
(3) Gen 4 F body (between the other 2). CTS/V and GTO fit in there too but can't remember exactly where.
Thread Starter
Teching In
Joined: Mar 2017
Posts: 13
Likes: 0
The Amazon listing for the bracket just said LS1. I'm going to assume fourth gen fbody. I would like to take both the Fbody and Corvette measurements if you have them
TECH Senior Member
Joined: Jun 2016
Posts: 22,298
Likes: 3,619
From: Central Cal.
I don't, but Holley does. Go to their site where front accessory drives are, and look at the brackets that go on all 3 types I mentioned. They have spacer kits that enable use of the same bracket on all 3 spacings.
Whose A/C bracket did you use?
Whose A/C bracket did you use?
TECH Senior Member
Joined: Jun 2016
Posts: 22,298
Likes: 3,619
From: Central Cal.
I noticed it is an ITC billet bracket. See if they have spacers, or barring that, see if they have a bracket with the same configuration as the Camaro unit, only for truck spacing.
And BTW Corvette spacing is another 3/4" closer to the block
