Pontiac V8 Engines - Photographing Legends
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It's rumored that three SOHC 421ci engines were produced in the early '60s and this particular unit appears to be one that Pontiac saved. It was presented to Chief Engine Engineer Malcolm McKellar upon his retirement and was nestled under the hood of his personal '63 Grand Prix for years. McKellar recalled that during testing, the SOHC engines seemingly produced around 625 hp and were capable of turning 7,000 rpm. Though difficult to depict here, what appears to be a series of typical Tri-Power carburetors is actually an experimental single six-barrel unit that Engineering tested for the '67 model year when GM banned the use of multiple carburetion. View Related Article
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