Nick's Garage dyno's a 318 Stroker.

toolmanmike said

They were a great head design. Too bad they were so big. They wouldn't fit easily under the hood of the newly designed (smaller) 63 A Bodies.

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I've always wanted to build a 4" arm Poly. The 4" crank is a drop in. It'd be a tough fit in an early Valiant, but it'd make for one hell of a truck motor.