Here are the custom roller rockers I designed for this motor. I started out with a set of Crower roller rockers that I had custom made without realizing there were geometric differences between a V8 and a 4 banger. The valves in a V8 are at about a 30 degree angle relative to the pushrods. In the Alpine the valves and the pushrods are roughly parallel. Because of this difference, the nose wheel would have rolled off the top of the valve during valve actuation. The only direction to go from here was to design some Alpine specific roller rockers. I wanted to design some rockers that were undeniably bullet proof. These are 1.42:1 rockers, made from 15-5PH Steel, rolling on needle bearings with an 11/16 shaft. They are neutrally balanced so as to minimize inertial losses, they use nose wheels and bearings from Crower and valve lash adjuster screws from Manton Pushrods. Thrust is handled with bronze bushings acting on the custom aluminum pillow block. The whole system gets oil from the spray bar you can see above the rockers. The holes in the spray bar are lined up such that when the valves are closed (rocker up), oil sprays at the hole visible on top of the rockers which leads into the shaft bearings. Grooves are cut into the thrust bearings to allow oil to flow out. When the valve is open (rocker down), the oil spray hits the nose wheel to lubricate it. The adjuster screws are also hollow and oil is sprayed into them, which flows down the hollow pushrod to lubricate the inside of the lifter. As you can see, those rockers are very bolted down and thus valvetrain geometry is very predictable.