[cnavarro]

I have made a 102/106.5 3.7 cylinder and have sold quite a few sets through various dealers (it's not in the Pelican catalog since they are custom order - I don't stock them, but just call Pelican and ask for them).

The original andial 3.7's use a 107 case register, our most recent 3.7's use a 106.5 case register, since our alloy is very ductile and strong (I have done thinner cylinders without incident). Knowing our cylinders hold up even with as thin as a 1mm thick skirt, I decided to leave extra material in the case.

What I would not do is run a turbo on the 3.7s since there is no room to flame ring and I would highly suggest twin plugging as a must.

I have done some single plug sets, but the highest compression I have done in that case was 9.3:1.