Im using a 250 25inch block bellhousing in order to mount a T5 5 speed transmission into a 218 23in block. The bellhousing matched up just right allowing me to use the starter and flywheel that came from the 250 block a buddy of mine recommended that I dial in the bellhousing in order to make sure the transmission is perfectly alligned with the crank/flywheel etc.. He also mentioned to look into using offset dowels in order to get it all perfectly dialed in..... dowel pins?!! I didnt even think about those when I put my flywheel, clutch, and bellhousing on the motor but I do see the need for them.
The problem Im having is that the holes for the dowels are different between the bellhousing and the 218 block? The 218 block has much larger diameter where the dowels go in.
I hope this is not a stupid question.. Are the dowels really necesary? If so do they make dowels with different sizes on each end? Is it necessary to dial in the bellhousing if the transmission shaft slides in smoothly?
I know they make offset dowels to allow you to finely adjust any offset.