Need help with engine mounts/perches

[Ghost's68]

I’m down to just figuring out what mound to run so I can finally drop my LS3 in. I bought some DD sliders and have them on the block now but the POL perches I bought don’t sit flush on the rail of the truck. Reading the instructions I see it says it might need modification to make them work. I don’t want to bend my rails if I don’t need too. I was thinking of getting the CPP and even buying the 73+ style.

What’s the best approach here considering I’ll be running LT headers?....

[Clyde65]

Just use the stock perches.

[Ghost's68]

Originally Posted by Clyde65

Just use the stock perches.

The PO hacker toghether a 5.3 swap and used what appeared to be the old perches but once I got the old motor out and i inspected the perches there was some damage to them and decided to just grab some new mounts. Plus I’m not sure if they were the SBC or 6cyl. Here’s a pic

[Frankie P.]

I just installed my L92 on my frame and used the POL engine perches. They fit well. Had to enlongate one hole on driver side and grind just a tiny bit in the frame edge so the holes line up. What I did was, leave perch bolts loose and the slowly torque them down until they fit flush.