PhilM
Be a good little project that bud.....I used 1mm machined pistons (7.8:1) in my old ZVH. I'd rather have machind pistons anyday over a spacer plate, at least you have propper sealing between head and block then!.
hey we never had a problem sealing it up mate
depends what you use and nobody to this day has worked it out yet
heres a clue it comes from the states