I one of these (single head) brand new in the box as you can see in the pictures.
These unported versions of race-winning Edelbrock Victor series CNC heads are designed specifically for the professional cylinder head porter and engine builder. Like all other Edelbrock cylinder heads, pro-port cylinder heads are also cast in the USA at the state-of-the-art Edelbrock foundry with extra-thick walls to allow for custom CNC porting. In most cases, seats and manganese-bronze valve guides are included, but not installed. Please note: these heads can not be used without professional head preparation.
These raw aluminum Pro-Port Victor Jr. LS3-LSX cylinder heads from Edelbrock are designed to allow you to build a custom tailored head for your Chevy LS Series engine. They feature extra-thick walls to allow for custom CNC porting and include seats and manganese-bronze valve guides.
Cast In The U.S.A.