I'm in the process of my T5 conversion and I checked the runout on my bellhousing ( late model with clutch cable ) last night. The bore alignment is well within tolerances, but as luck would have it, I seem to have some issues with the face runout.

If you're standing behind the engine looking at the face of the bellhousing, from about the 7:00 position, going clockwise, all the way to the 5:00 position, I have a .002 in. variation. Not too bad. However, between the 7:00 and 5:00, it jumps to about .010 in.

These face measurements were taken on the machined circle that surrounds the bore. Also the bellhousing was installed with the block plate and torqued to spec.

I layed a straight edge across the entire face of the bellhousing in multiple locations and orientations. In most cases, the face of the bellhousing was perfectly flat. The only orientations that had any issues was when the straight edge passed through this 5:00 to 7:00 arc. When the straight edge is in the 12:00-6:00 position, you can definitely see how the lower arc of the bore is more pronounced than the rest of the face.

OK. The million dollar question. Will installing the transmission to the bellhousing and torqueing the bolts correctly "flatten" the bad section of the bellhousing or am I bound for a machinist.

If I need a machinist, will taking off .008 in. affect the length of the input shaft in the pilot bearing.

Sorry for all of the questions, but I only want to do this once.

Thanks
Reed

------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

12.58/110 on street tires, more to come;)

Over analyzing tends to be one of my strong suits, but I just wanted to be sure I wouldn't be pulling this thing back out to rebuild it.