Blake Machine Company 

We offer these in a stock 1.5 ratio, or a performance 1.6 Ratio.

We build and sell the most advanced rocker arm system for Buick Straight 8 engines ever produced.  These rocker assembly’s feature the following:

New hardened shafts that feature a gundrilled hole for oiling and lightness.

All new hardware including springs, thrust washers and bolts.

Rocker arms feature a roller tip to reduce side load on the valve stem, as well as free up horsepower from the friction of the stock style rocker arm.  The rockers have a SAE 660 bronze bushing for riding on the main shaft.  Rocker arms are made from billet aircraft grade 7075 aluminum for a high strength.

The roller tips are hardenedand ground steel for precision.  

The rocker arm stands are made from billet aluminum that makes them much stronger than the stock cast stands.