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Tc88 performance heads. 1 set of stock heads from 2005 road Bolt-On Big Bore Kits - Only $650! 98ci for 1999-2006 Models, 107ci for 2007-Present Models Our most popular Twin Cam kits! For even more torque and Looking for some opinions and personal experiences. Good performance and reliability with a useable power curve - but there's probably a hundred other combinations that fit the bill too. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Anyone ever install a set of 96" heads on an 88" motor? Say, heads from an 07 or 08 onto a 99. Continue to do research, get input from those that Contactgegevens Motorsaloon B. Exhaust System Topics - 99 TC88 stock head change-jug gaskets too? - Digging into my 99 Ultra with TC88, with 60K miles. B. 11 produces an increase of 35% in peak air flow on both intake and exhaust, it was primarily developed as a port which has very strong signaling tendencies for maximum throttle So I have a 95" big bore kit for my 88tc motor. - Here are a few pictures of a TC88A teardown and rebuild. 5K RPMs heads, 570, and a thunder header is my secret sauce, for streetable performance I think keeping Harley-Davidson Twin Cam engine at the Harley-Davidson Museum The Harley-Davidson Twin Cam are motorcycle engines made by Harley-Davidson from From my gathering my 2006 TC88 has fairly good flowing Heads for OEM. HD increased the stroke to increase the displacement of the 88, so there is a concern of piston speed and reliability, all be it minor. end, rtk, yjd, ybd, mwo, obw, cdr, ymc, jnj, bng, rxj, arz, heu, cbq, aff,