Cylinder Head 40x35.5 90/92mm

AA PERFORMANCE. Each. Made in China. Stainless steel valves ( 40mm & 35.5 ) DUAL HI-REV valve springs. 12mm 3/4" spark plug holes. FOR 90.5 or 92mm PISTONS KIT. Highly recommend using with hardened lash caps as the valves are stainless steel.