ALL CHINA ENGINE CASES WILL WORK AS IS. ________________________________________ THIS 54MM PISTON DOME IS FOR THE STOCK HEADS ON THE LISTED MODELS OF 50CC ENGINES @ 95CC_BIG_BORE CYLINDER_KIT XR50_CRF50 LIFAN_50 ZONGSHEN_50 JIALING_50 (READ_DISCRIPTION) temp out of stock 1-13/1-48/1004D @ e BIG_BORE CASE_SET (50CC/70CC/TRX90) 58MM_OPENING CDI_TYPE_CASES (BBCS)ANY PART FROM A HONDA XR50 CRF50 XR70 CRF70 AND MOST ANY 50 70 90 OR 110 CLONE ENGINE PARTS WILL BOLT RIGHT ONTO THESE CASES. THE ONLY THING THE OLDER HONDA MODELS NEED TO WATCH IS THE OIL PUMP AND STATOR SYSTEMS, THEY DIFFER FROM THE NEWER. IF YOU JUST KNOW AND REMEMBER THESE ARE IDENTICAL CASES TO THE HONDA CRF50 OR 70 THEN YOU WILL KNOW OR CAN FIND OUT WHAT PARTS FIT.. THESE CASES WILL ACCEPT OUR 95CC CYLINDER WHICH HAS A 54MM PISTON BORE AND IS 56MM OD AT SKIRT. THESE CASES ARE MADE TO BE USED WITH A CDI TYPE IGNITION STATOR. THESE CASES WILL ACCEPT ANY OEM HONDA 3 OR 4 SPEED TRANNY!! YOU CAN ALSO USE ANY HONDA AUTO CLUTCH OR MANUAL CLUTCH!! THEY ARE STROKER CRANK READY IE 52MM STROKE WITH 95CC CYLINDER WILL PRODUCE 120CC OF KICK BUTT ROCKIN POWER!! YOUR STOCK SCREWS WILL WORK WITH THESE CASES, BUT IF YOU WANT NEW WE HAVE THEM LISTED BELOW. YOU WILL NEED 4EA 65MM 2EA 60MM AND 1EA 50MM LONG SCREWS. THE BOLTS LISTED BELOW HAVE THE 8MM HEX HEADS BELOW ON THIS PAGE ARE SOME OTHER AVAILABLE PARTS YOU MAY WANT TO GET, DEPENDING ON WHAT YOUR DOING. BBCS