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Twin Cam Hop Up Tech Stock Valve Springs

3. Here, John removed the stock valve springs, collars, valves, seals, gaskets, and rings, and then wiped down the residual oil/debris from the stock heads. Then he glassbead-blasted the combustion chamber and ports to remove all the carbon build-up, and finally blasted out paint from the ports and combustion chamber (H-D paints their heads and machines afterward). When he finished bead blasting, he blew out the debris with an air hose.
Twin Cam Hop-Up

3. Here, John removed the stock valve springs, collars, valves, seals, gaskets, and rings, and then wiped down the residual oil/debris from the stock heads. Then he glassbead-blasted the combustion chamber and ports to remove all the carbon build-up, and finally blasted out paint from the ports and combustion chamber (H-D paints their heads and machines afterward). When he finished bead blasting, he blew out the debris with an air hose.  View Related Article

 

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