I have a weld on radiator cap neck and a thermostat elbow that you can have for $20+ shipping. It requires drilling/grinding and alum welding to make it work. No radiator cap included. I drilled and tapped mine to accept a hose for the overflow bottle. I put a 20# cap on the radiator and a 15# cap on the elbow and capped off the overflow on the radiator. I hope this makes sense. You can call me at 913-962-0159. Russ