Got these with a long block I just bought. The pocket work was done at Zimmerman. The intake ports are out to a 1200 gasket. They have stainless stock size valves. I don't know who ported the intake and exhaust. They have 100lb valve springs.They are 8445's. The combustion chambers have some work done also. I need $565 shipped. lower 48 and pay pal. I pay my own fees. These are for stock rockers and flat tappet cam.