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Our CNC Fully Ported heads are 100% ported to maximum we can safely get out of the cylinder heads. Intake ports flows up to 5 more and exhaust ports over 25 more with CNC chambers which equals substantial increases in horsepower. Also all the chambers are exactly the same which makes it easier to tune for maximum power. Our “SST Porting” is for applications where porting the head is allowed and, because of the application, the cylinder head just doesn’t need to be fully 100% ported. CNC Chambers helps the head flow more air by un-shrouding the valves at low and high lifts. Our “Undercover Porting” adds 15-30 horsepower to your engine combination by modifying the critical areas of the head and retaining a stock-looking port.Īcid Porting uses chemical treatments to enlarge the intake ports, which maximizes air flow & increases intake volume, while maintaining a stock appearance. Some Of Our Ford Cylinder Head Work On Instagram: headgamesmotorworks. Performance you can expect and the quality you deserve, that’s the HeadGames difference Contact Us Today. Suzuki Hayabusa and Kawasaki ZX-14 Motorcycle Head and Cam Packages from Competition CNC. Performance Prep is done to all our heads prior the more extensive modifications like SST Porting, “UnderCover Porting” and CNC Sportsman Porting.Īs we talk about in the videos, for some applications our Performance Prep Modifications is all that is needed to run in the top 3 at any race track in the county. Our heads show upwards of 30cfm better than any commercially available head is what you can expect from our CNC ported, hand finished heads. In addition to reshaping and enlarging the intake and exhaust ports, most Big Valve Cylinder heads feature a re-shaped combuSTion chamber to un-shroud the valves increasing. Note: 7,000 rpm for a few thousand laps will not happen with off-the-shelf warehouse heads without this type of work. Precision Race Components Customer-Supplied 4.8L/5.3L/LS1/LS2/LS6 Cylinder Heads Fully CNC Ported & Assembled With Choice of Your Stock or Stainless Steel 2.02' Intake Valves, 1.575' Exhaust Valves, & Optional TSP Dual Valve Spring Kit with PAC Valve Springs & Titanium Retainers. Using the digitized program, Cosworth Racing then reshape both intake and exhaust ports using a 5 axis CNC mill producing an accurate and consistent port shape every time.
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#RACE PORT CNC MIATA HEAD SERIES#
In this informative series of “behind the scenes’ videos we go into detail about pre-sorting head castings, valve guides installation & sizing, machining valve seats with our “raised-seat technology” & combustion chamber modifications.Īfter our Performance Prep Modification your heads will be superior “mechanical condition” to run 7,000 rpm for a few thousand laps.