| Race Cylinders I now have available cut cylinders to suit the 2 piece head kits, these cylinders are the large transfere BD model that has more transfere volume than the ZH-1 cylinder, i will machine these to suit any of the PBU , ADA, REV - UNLIMITED cylinders, if you have a cylinder that your happy with but its getting abit tired i can machine up an exact copy or if you need more power / torque / revs i can also machine a cylinder to your needs, ranging from the single boost port / bottle port / tripple port plus exhaust porting ect, PM me for more info. RD RACING |