Why Use Harley Twin Cam Performance Head Porting & Polishing Intake & Exhaust Flanges

These flange templates are for porting over sized intake runner and exhaust port on M8 Gen I, Gen II and TC heads. Helps as a guide to keep from over porting and nicking gasket surface while porting, therefore preventing from seal leaks. Available in different sizes depending on manifold runner size. Some changes from the original: Exhaust flange is now grey for increased visibility, instead of black, and the Gen II is marked Front/ rear and up. Available on our website: www.jcsperformance1.com/store Subscribe to see more from @jcsperformance2778 Instagram:   / jcsperformance59   and Facebook:   / jcsperformance59   JCS Performance 11 S 5th St McAllen, TX 78501 (956)566-7437