M56 parts. Head was decked 1mm. 50.00 Cyl. Is in good useable shape with the ex. port raised to 164 ex. port 117 transfer port and 22 blow down degrees of timing. 50.00. Reed cage with all the mods. 35.00. Carb bored to 13.5mm complete and ready to run. 65.00. Stock air cleaner 20.00 Std. 40mm piston useable shape. 15.00. With the cyl , Head, reed and carb mods will allow the engine to RPM and make good power.