Seen a lot on high compression heads what about the HC pistons are they worth it if wife won't let you spring for a HC head
Go ahead and buy the head.
Remember...it's easier to ask forgiveness than permission!
I like using H-C pistons and milling the head if I'm building an engine anyway. If your engine is staying in the car, it's easier to change the head. Either way will get you higher compression and a more powerful engine. The high-comp piston/milled head route is less money than a new high-comp head (about half as much), and you still have a stock-looking engine with a cast iron head.
I put HC pistons in the engine on a 1914 Touring we tour heavily. It runs nice and sounds good. They have been in the car since about 1998. No problems what so ever.
I agree with Mike. I put the HC head on my car that already had a good engine, but installed HC pistons and stock heads on the engines I've either had to re-ring or rebuild.
Well money the major issue for my TT so I go HC pistons and mill the head
How many variations of high compression pistons are there? Sources? Any specifically for OHV heads?