yes, got the 58.5 BBk. came with piston, Jug, matching head with vaulve and spings already assembled. decribtion was high compression piston. High quailty.
"RACING BIG PORTS 58.5MM CYLINDER HEAD AND 1 RACING CAMSHAFT" I got the A12.
The piston was a flat top. everything went on pretty good. And havent had any issues leaking. However, I will not deal with them again. In the end got what I paid for. Took way to long. next time will go with BD. cost a little more. but dont half to deal with stupidity. I couldn't tell you if it has a higher range spring in them or not. Main thing I did notice, was that the ports was noteably bigger. It works for now, until I save up for a bigger one. 175cc stroker.
