107″ setup 2 Feb, 2017 in Head Hoggers tagged harley engine kits / harley head porting / harley machine work / Harley Performance / harley service / Head Hoggers by headhoggers Almost ready for break in and tuning. Should have a Video tmr on this bad boy. Just another little 107″. Our stage 3 heads 58mm TB our CP 107″ pistons woods TW999-6 cams woods lifters our bottom end setup D&D fatcat.