last time I was talking to Ross this was his reply.
The twincam motor is a VR4 head on a starion block.
I can't believe i forgot that! i guess that's what happens when you're flat out at work and working on a handful of cars at once in any spare time i have remaining.
Twincam is freshly built never ran since rebuild, i've had it a few years as i never have enough time to get stuck into it. Turning it over by hand once a month but lives in my shed.
There is a spare set of oversized pistons to go with one of the cars.
Selling the cars for 1k each and motor for 1500.
I would assume stock internals. I should be able to contact him if you can't get hold of him.
If at first you don't succeed, maybe skydiving just wasn't your sport!