Yardpro

I am currently doing a ls3 swap into my cayman.

i have a mock up block and am beginning the cuttind and modifications to the firewall and fabbing the exhaust

I have ordered a set of prothane isolators but they are on 6 week backorder.

i am trying to just make a mock up of the isolator for the mock up block so i can get everything oriented and measured.

does anyone know the height of the isolators? i am going to just sue some threaded rod and washers/bolts to mock them up so i can continue working on all the other fittment.

i have looked but cant find it listed anywhere