Tubes are 8.00" long end to end, under the head to the tip 7.70" and are sold separate. Plug tube diameter is 1.255" where it registers in the head and valve cover and the actual tube portion is 1.180" in diameter.
Fits Williams, Moroso, BAE, valve covers using BAE, Manton or T&D rocker arms on BAE, Noonan, Total Flow, MBE cylinder heads.
Racer can choose from open bottom which allow the racer to pull the valve covers off without pulling the spark plugs out of the cylinder heads or closed bottom that use the spark plugs to hold the valve covers tight to the cylinder head.
Choose style from drop down menu.