Bellhousing alignment

[Run to Rund]

I would play some more, such as moving .004 vertically and slightly to the side. I was able after some tries to get within .001" out after starting somewhere near where you are now. Be sure you tighten the mounting bolts starting at the bottom ones which are closest to being in line with the crank centerline.

[Rory McNeil]

I don`t know what engine you are building, but on my FE and small block Fords, I have found the common Lakewood offset dowels to fit in the block a bit looser than I would like. To keep the dowels in position, I drilled and tapped a small hole in the blocks bellhousing flange area, and installed 1 small Allen head setscrew for each pin, to lock the dowel pins in position. That way you can Re& Re the bellhousing as needed, without having to worry about knocking a dowel pin out of position.

[J&S Racing]

Originally Posted by Rory McNeil

I don`t know what engine you are building, but on my FE and small block Fords, I have found the common Lakewood offset dowels to fit in the block a bit looser than I would like. To keep the dowels in position, I drilled and tapped a small hole in the blocks bellhousing flange area, and installed 1 small Allen head setscrew for each pin, to lock the dowel pins in position. That way you can Re& Re the bellhousing as needed, without having to worry about knocking a dowel pin out of position.

BBC
I went with the dowels from Robbmc performance. The have a Allen that runs through the center of the dowel. Once it’s in position you tighten the Allen and it locks the dowel in.

[J&S Racing]

Originally Posted by Run to Rund

I would play some more, such as moving .004 vertically and slightly to the side. I was able after some tries to get within .001" out after starting somewhere near where you are now. Be sure you tighten the mounting bolts starting at the bottom ones which are closest to being in line with the crank centerline.

The picture shows where I ended after about 10 attempts. Originaly I had a dial reading of .048 for .024 run out. With .021 dowels closes I could get would be .003??