22r's are HUGE in the states, 200hp crate motors are common. You can buy a whole rebuild kit with all seals, gaskets, chain, pistons, new head, rods, crank and block for just on $1,000 US. You can also get timing chain kits and with new timing covers and gears for $60 US. Postage isn't that expensive either if you get a lot of shit at one. Ebay USA.