V2 Race Head Upgrade Kit - TBW9176 black Compared to the large diameter

Compared to the large diameter two valves of our super head + R

lightweight racing piston

(2nd gear and shift fork use stock OEM parts)

TB Parts 55mm Stroker Crankshaft

We have them available in this section and the part number is TBW0861)

V2 Race Head Upgrade Kit - TBW9176 black Compared to the large diameterThis a great, potent upgrade for those who already have a TB 143cc, 165cc, or 178cc bore kit. It adds the race head V2 and intake kit to your existing bore kit to deliver a great level of performance. Kit includes: Forged anodized aluminum roller rockers Huge 30mm intake and 24. 5mm exhaust valves Stainless steel valves (21 4N material) 27mm intake port, 23mm exhaust port Race camshaft V2 1 (TBW0473 we can sub cam TBW0577 if preferred) Cam sprocket