Big horsepower 318 builds

harrisonm said

Yes they did. So why did the cancel it? Was it such a good engine that Chrysler was not making any "after warranty" service money?

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They could of easily made the Magnum stronger and added heads for 500 plus hp, but the hemi name just a better sales tool. The 5.7 hemi is basically a 318 with a 360 crank and hemi type heads. Rotating assembly ain’t that different from LA/Magnum.