Cylinder Head Reprofiling And Voluming by JK Tuning & Race Development Here's one of our many purpose-built jigs. After the painstaking setup comes the real work that counts squish-angles to be altered, multi-angles to be added, volumes increased or decreased depending upon the intended application. All head volumes are carefully measured and remeasured to finally arrive at the magic figure for the desired results. Finally we end up with the desired profile, volume and finish. Email us for a free quote or advice. Back to Products & Services Back to Home