4.5K views · 107 reactions | LS 243 Heads getting a full CNC port job. We are seeing over 50cfm gain on this head while retaining the stock valve size. #cnc #cncporting #cncported #cncportedheads #headporting #morehorsepower #cncmotorsports #ls243 #lsheads | CNC-Motorsports | Facebook
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4.5K views · 107 reactions | LS 243 Heads getting a full CNC port job. …
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Why 243s when 706s
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