cudamanbob , i'm waiting to see if the guy is willing to mag for cracks , on the one i found . if he's unwilling . i will be back in touch , oh by the way are you willing to get your mag'd for cracks and two questions , 1) there 1.88 int 1.6 ex stock no porting are yours that way ? 2) do you know if your 73-74 3671587's have flame hardened exh seats and how are the valves and seats ? pomonamissel