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Re: 57 PlymouthFury w/ factory experimental 318 hemi

From: Eddie
email: 57imperial


Rick, I know that the only 318 engine in 1957 was the Polyshere type. It had the two four barrel carbs. dual point distributer,and a nice cam. The "Polyshere" engine's heads are close to being a hemi in valve configuration and spark plug location. The real hemi's have two rocker shafts to operate the valves and a more central location for the spark plugs. The "Poly" engines did offer a lot of the same breathing characteristics as the hemi,but were not as complex to manufacture. However,your grandfather probably spent a small fortune in gas and maintanance bills. Good engines none the least. Googd luck. I hope I helped a little!.........Eddie


Last changed: July 19, 2018