12a full street port with a half bridge on the secodaries. Remanufactured motor, all new internals, 93 corner seal springs, hardened stationary gears, Baffled oil pan, upgraded oil pressure system, welded coolant to intake passages, light flywheel, 5 puck ceramic clutch disc with sprung hub and pressure plate(45% more grip), 9,000kms on motor was only run with Amsoil bypass secondary oil filtration system in place. Motor is in perfect working order, guaranteed. Short block only 2000.00US shipped. Email info@cpracing.ca for more information