Big Valve CNC Ported Race Head - All KLX140

31/25 Race Head
31mm Intake Valve and 25mm Exhaust Valve
Works with the BRT 63mm bore kit (170cc kit)
Do NOT use this with the TB or BBR 63mm Pistons!!!!

34/29 Race Head
34mm Intake Valve and 29mm Exhaust Valve
Works with the BRT brand 66mm and up pistons that we sell
(63mm piston will not work with these valve sizes)

36/31 High Flow Race Head
36mm Intake Valve and 31mm Exhaust Valve
Works with the BRT brand 68mm and up pistons that we sell
(63/66mm pistons will not work with this head)

Comes complete with valve springs, valve seals, collets, top and bottom retainers specifically for this performance head. Be sure to grab a BRT cam and a set of cam bearings to complete this head.

*Picture does not reflect the valve size selected.*