Pay in 4 interest-free payments of $28.48 Learn more
Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
Transfer port/skavenging covers not included
Enlarged and resurfaced exhaust port<br />4
Just bolt on your exhaust and filter and it's ready to run
29cc Head Kit Motor He23hp
1929 - TR/OBR 4 Bolt Billet Piston Port Crankcase Transfer port/skavenging covers not included<p>Dyno results are in. <span>We've had quite a few questions on the power difference between our case and a stock Zenoah case. Testing was done on our prostock g290rc we've been developing. We're seeing by just swapping to the TR OBR billet piston port case more power< span><span class="text_exposed_show"> all the way across the board. 0. 2 ft lbs of torque and HP, broader powerband, +1500 rpm's and quicker crankcase temperature
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