Well aware of their marketing on this. Ford cross plane cams are relatively inexpensive (compared to aftermarket coyote cams) and the stock predator rockers are about $6. ea.
If you have to clearance the body of the rocker arm to clear the cam lobe, then the lobe and roller are improperly aligned.
I should have put this in my earlier post for clarity, but the parts you need to put the GT350 on are the same parts that you will need for the Predator heads. I personally would not use the modified rockers, I would get the appropriate gen of Voodoo/Predator cross plane cams.
The original Gen2 coyote driver side valve cover is known to trap oil. It's been replaced by the current GT350 cover in the parts catalog or you can go with the aluminum GT500 covers.
Is the small end of the predator rod tapered? The OEM voodoo piston pin boss is tapered to match the voodoo rod. A normal small end rod will not fit. (I'm assuming you're going OEM here as well).
Take your standard dyno graph for HP, RPM on the base (x axis) HP on the vertical (y axis). Draw a vertical line from a point on the plotted HP curve to the x-axis, say 3500 RPM and another at say 7500 RPM. Shade in the space you've bordered with the two vertical lines, the x-axis and the HP...
You mean lower.
Use 0.012" for deck clearance. Milling the heads will change the C.R. less than gasket thickness as the HG diameter is wider than the chamber in addition to whatever taper the chamber has. For comparison purposes, it's fine though.
They supposedly have stronger wheel and bearings; but they are interchangeable between the GT350 and Gt500 (and the 18+ 5.0). That being said, they are actually a V6 part.
Just an FYI, GR3Z-9E926-A is the service part number for the GT350, KR3E-9F991-AB is the engineering part number for the Mach1, and GR3E-9F991 -AB is the engineering part number for the gt350 and the same part as the service part. The service part number for the Mach1 is KR3Z-9E926-A. There...
Service manual clearance:
Main bearing journal-to-main bearing clearance
0.0010 –0.0018 in ( .025 –.045 mm)
Mains: (1-10 are the outside bolts)
Tighten the vertical main bearing cap fasteners.
Torque :
Stage 1: 1 through 20: 177 lb.in (20 Nm)
Stage 2: 1 through 10: 30 lb.ft (40 Nm)...
I assume you're going to check the clearance with the new bearings. Just for an FYI, Ford uses three grades of bearing shells, 1,2,&3 marked on the back of each shell. A 1/1 combo would be for a large crank journal/small main dia. and 3/3 the opposite. By my rough calculation, there is about...