Alternator spacer length

[dadeo1852]

For big block what is the spacer length between the alternator and cylinder head on the upper long bolt for a non-ac Challenger? Is it 1.25" or ? Getting belt squealing when I rev.

 

[fasjac]

I’m using March brackets, not their pulleys ( serpentine). Here’s what mine looks like. If you’re all factory, I don’t know if this will help.

 

[dadeo1852]

Yes, looking for factory - thanks.

 

[dadeo1852]

Well I tried a 1.25" spacer and the pulleys are way out of alignment so the 1.50" spacer is back in and snugged the belt tighter- thanks.

 

[fasjac]

Well I tried a 1.25" spacer and the pulleys are way out of alignment so the 1.50" spacer is back in and snugged the belt tighter- thanks.