These were used for an engine mockup and the idea with the valve train changed so they were not used at all. They have been prelubed soaked and installed in the engine no run time what so ever.

Please note these require either a diffrent length pushrod or adjustable rockers per Rhoads.

The claims are a quieter valvetrain more vaccum and more horsepower.

They were pretty costly new.

I will take 200 shipped to the lower 48 unless someone throws me a better offer
thanks
Revolution_Racing@comcast.net