thanks to all the replies ,the engine i have is a modified L28 its got a ported head ,brass guides,looks like big valves and a nismo cam ,the block i dont know whats been done to it ,i can get a LD28 crank for $500 but if i need to machine it i may not bother ,i also bought a tomei 1 mm head gasket and arp stud kit so i can use a 75 hp nos kit should go ok its also got triple mikunis and octopus legs