[Apex_speed]

The "CS Shelby" valve covers (and everything else in that family) from Scott Drake do not fit the 427R with Comp Cam rockers and stud girdles that sit about 1/2" high.

The hight is actually fine but the clearance at the bottom of the rocker to the exhaust side of the cover is way too close (less than 1/8") so any movement while tightening down could cause them to hit.

I next day aired in some nice "fabricated" aluminum covers with a satin finish so we will try for round 2 tomorrow. The fabricated covers are as large as the billet Roush covers so hopefully they will fit with no issues. They also have a 1/4" thick flat rail on the bottom for the gasket mating surface so that should make life easy.

SBF covers are an adventure. It would seem like someone other than Blue Thunder would want this market and also that BT would do more frequent production as they are almost the only game. Cobra Valley used to have some great ones but discontinued them.