Head Porting

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Plowman's Custom Porting
Custom head porting is a nice addition to any used or fresh motor. Plowman's will remove and reshape swirl intake track on the 301-357 head and apply our custom surface finishes. Next, we will enlarge and reshape the exhaust port and polish to a chrome-like finish. We will shave the head for the correct compression ratio, fresh valve job with new valves, seal, guides and upgraded high rev valve springs. This will add unbelievable torque and horsepower through the whole band. Plowman's performance kit is a must have for this mod due to increased fuel and exhaust flow. There is a 3 day turn around time on our cylinder head porting.for 402 heads 499.00