4-Speed Bellhousing Question

[elevenssc]

Ive got the alignment dowel offset figured out, but I have a question about the parallelism between the engine mounting surface to the transmission mounting surface. How much out of parallel is allowed?

Looking at the trans mounting surface of the bellhousing toward the front of the motor, I'm about .005" low at 6:00 when grounded on the engine mounting surface.  (tail of trans would be below centerline. ). Is this a concern?  Getting things parallel and perpendicular to the trans pilot bore seems like a lot of work. Is .005" something I need to correct?

Thanks

[73440]

a 1/64'' is .015 '' so that is 3 times .005''

[elevenssc]

73440...is the .015" max allowed?  If so, I'm good to go...

[73440]

I see a spec for "clutch housing face squareness" of .006'' Max. for the 3 and 4 speeds.
Not sure if that will translate where you are measuring.

[jimynick]

Boys, .005 is five one thousandths and .015 is fifteen one thousandths. does that help?

[elevenssc]

Just lookin for what is the max out of parallel allowed?  Still confused 

[Chryco Psycho]

I am guessing you would have to mill the belhousing face to correct it

[bigblue73]

The input shaft on the 833's can take a large amount of offset and out of parallelism.  The number that sticks to my mind is .015 each way.  If you are not using an 833 then the specification may be tighter.  The assembly tolerances used today and tighter by a large margin than that of yesteryear.  AT .005 out of parallelism you can shim the bottom hole to gain the perfect zero indication.