{"product_id":"trick-flow-shallow-chamber-cnc-ported-6-bolt-235cc-cylinder-head-bundle","title":"Trick Flow Shallow Chamber CNC Ported 6 Bolt 235CC Cylinder Head Bundle","description":"\u003cp\u003eTrick Flow GenX® 235 cathedral port cylinder heads for GM LSX engines are fully CNC-machined to significantly increase the performance of extreme performance LS-powered vehicles. Trick Flow engineers altered the valve angles from 15° to 13.5° to decrease valve shrouding, increase mid-lift airflow, and improve rocker arm-to-valve cover clearance. Material was added at the rocker arm mounting points to increase high-rpm valvetrain stability. The spark plugs were relocated in the CNC-profiled combustion chambers to enhance mid-lift airflow and increase the rigidity of the casting for extreme horsepower applications. Top-of-the-line CNC Competition Ported runners have a premium high resolution surface finish for maximum flow and performance. Included with your purchase are a 50° exhaust valve job for better power and stock style powdered metal valve guides to allow the use of stock rocker arms.\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":52041707684134,"sku":"TRICK FLOW SHALLOW CNC PORTED 6 BOLT 235CC CYLINDER HEAD BUNDLE","price":2979.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/1666\/1542\/files\/tfs_6_bolt_1_9.jpg?v=1770813235","url":"https:\/\/billysspeedshop.com\/products\/trick-flow-shallow-chamber-cnc-ported-6-bolt-235cc-cylinder-head-bundle","provider":"Billys Speed Shop","version":"1.0","type":"link"}