< Ford tech. The modular motors are certainly interference engines. I knew that already but I just searched the workshop manual trying to find proof because some people want that and all I found was this warning : CAUTION: Unless otherwise instructed, do not rotate either the crankshaft or the camshafts when the timing chains are removed and the cylinder heads are installed. Severe piston and valve damage will occur. Which is stated several times in the timing section of the shop manual for the 4.6 and 5.4.
Edit: I also looked and couldn't find anywhere you are "otherwise instructed" either haha, I'm not sure why they put that in there.
'97 F-150 4.6L 5-speed Off-road: PI head swap, 3.8L Taurus E-fan w/DCC controller, VMP Tuning custom tunes with SCT X3, Pacesetter shorties, Gotts mod, 3" body lift, 285/70/17 Nitto Crossteks, Expedition front brake swap, Herculiner two-tone, 2-6" driving lights behind billet grille, 2-10" subs under rear seat.
Last edited by Austin97; 06-18-2011 at 06:55 PM.