Mobile air compressor

[nicky1]

Thank you Frank S,
I've had double knee replacement and just got to reading my replies. I do thank you for your input and your information. I think I will be using a Wisconsin V4 engine and make solid steel heads, Disable the lifters and use both valves for the intake. I found some check valves that will work for the outlets at Graingers [ part #5x782]. The seats are good for 450 deg F.
I'm just not able to get to work in my shop yet but when I do I will be posting a photo if it all works out.