{"product_id":"trick-flow-cnc-ported-4-bolt-245cc-cylinder-head-bundle","title":"Trick Flow CNC Ported 4 Bolt 245CC Cylinder Head Bundle","description":"\u003cp\u003eTrick Flow GenX® 245 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":52041705390374,"sku":"TRICK FLOW CNC PORTED 4 BOLT 245CC CYLINDER HEAD BUNDLE","price":3029.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/1666\/1542\/files\/tfs_fast_as_cast_1_1.jpg?v=1770813229","url":"https:\/\/billysspeedshop.com\/products\/trick-flow-cnc-ported-4-bolt-245cc-cylinder-head-bundle","provider":"Billys Speed Shop","version":"1.0","type":"link"}