WebMar 29, 2024 · The CNC-ported LS9 heads blend the engineered strength of the LS9 cylinder head design, which is constructed with A356T6 aluminum alloy, with the airflow enhancements provided by GM's extensive testing. The result is a ten percent improvement over the unported LS9 head. WebCylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve their air flow. Cylinder heads, as manufactured, are usually suboptimal for racing …
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WebPorted HEMI Heads Upgrade your HEMI with a set of ported heads by Arrington Performance. Our heads are CNC ported and single point valve jobbed to provide the best horsepower and smoothest air flow. Filter Results: Filter By Manufacturer: Arrington Performance (5) Thitek (1) Filter By Price: $2,299.00 - $2,438.99 (4) $2,579.00 - $2,718.99 … WebPorting and polishing your vehicle’s cylinder head is an effective way to increase high-RPM air flow into your engine. When your engine can take in more air, it can also burn more fuel. Burning more fuel means producing … porsche 356 sound deadening kit
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WebWorking with noted Engine Builder Tony Bischoff of BES Racing Engines (Winner of the 2006 JEGS Engine Masters Challenge) we have developed a new line of 6.1L Ported Heads & Intake. With back to back dyno tests, the HHP Stage 1 Heads and Intake averaged gains of 45 rwhp and 44 rwt while achieving maximum gains of 49 rwhp all running cold (with ... WebAfter the seat integrity inspection is completed, the valves, seats and ports are professionally machined, un-shrouded and blended to provide maximum flow in an O.E. head. This is done to achieve power and concentricity without the cost of expensive porting and oversize valve options. WebMar 1, 2024 · With huge flow numbers and an efficient port shape, the GPI CNC ported Gen 5 LT1 / LT4 / L86 offering is truly bolt-on performance! Our LT1 / LT4 / L86 head was developed specifically for the stock displacement LT engine to deliver improved cylinder fill in the lower RPM ranges while adding substantial airflow increase in the upper Ranges as … porsche 356 rhd for sale uk