Moroso Valve Checking Springs PD850K ORB port plugs are the

ORB port plugs are the only way to correctly seal unused ORB ports

-4 AN to 10mm x 1

1-1/4 in Tube OD

9 Quart Capacity

One hand chin bar opening

Moroso Valve Checking Springs PD850K ORB port plugs are theGreatly simplifies the task of cam degreeing, checking valve to piston clearance, etc. Designed with 7 8" diameter and 2" height for most popular race engines Can be installed by hand without the use of compression tools Sold as a set of 8 Moroso Performance Products is one of the worlds most respected suppliers of automotive equipment for racing and street performance applications. Moroso manufactures over 4000 products, from oil pans and oiling