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Hey guys,
Lurker for a while, thanks for all the great info. It's been truly valuable for my build.
Details on build:
1974 F100 4x4 frame, 1966 FE428 (built buy FE Specialties in Auburn, CA.), 1950 F1 cab.
The truck had these bones and now I'm doing a RestoMod. We ran into a issue with the engine perches. Before we tore down and removed the motor, we never looked at how the engine sat on the perches. It appears that the driver side perches are ~1 in lower than the passenger side. The frame is level and square so something is up with the perches. We initially thought it was an issue with new aftermarket mounts but when we swapped out the original perches and new motor mounts the issue was the same.
That doesn’t sound right.
I have a 76 f250 4x4 with a non original HD 390 (428 block under bored). It sits level in my truck with the original FE engine mounts.
For all intents and purposes, if the motor and the mounts/perches (aren't bent) are what they say they are... the only logical thing is the frame somehow takes a dive on the driver side.
somethingclever- what's 'measure on china wall' mean?
A level engine is relative to the frame. The natural stance of the frame (level, raked, etc.) should be matched with a level carb. Thus, one should use a level or inclinometer to measure the intake manual carb mounting surface both front to back and side to side. Adjust mounts to maintain those measurements. Variables to control ahead of this include unequal tire height, spring sag, etc. One way to do that is to use jack stands to get the frame level side to side as well as the front to back incline, if any.
Looks fine to me, you will notice all Fords site with the engine to the left and the rear angled downward. None of these trucks had a engine that sat level. You need this for weight offset and driveshaft angle.
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