A cool shot of one of the most dominant Gasser greats is Ohio George Montgomery with his Ford SOHC-powered 1933 Willys coupe. That blower is one of Montgomery’s own magnesium units he produced along with Sneaky Pete Robinson. When all of the mag-cast pieces including end plates, drive assembly and intake manifold, were utilized, a total of 54 pounds was reduced over an aluminum 6-71 blower. Rotors remained aluminum, as it was determined there was much less tendency for galling between the mag case and aluminum rotors. The blower and intake could be removed as one piece, which can’t be done with a typical GMC 6-71. Most examples of the Montgomery/Robinson superchargers we’ve seen incorporate two blow-off valves in the intake manifold, but we count four—and there could be more, in this image from May 1966.
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