One of the most misunderstood and often overlooked parts of mating your engine and transmission together is the requirement to index the bellhousing to the back of the engine properly. This alignment procedure allows for better shifting and can prolong the life of the transmission and the pilot bearing.
While most bell housings will fall well within the allowable limits which are typically around 0.005 (five thousandths), it’s always a good idea to check the runout on any bell housing when installing it on a new engine.
Indexing your bell housing can help prevent premature pilot and input shaft bearing failure. It can also improve the shifting characteristics of your transmission by eliminating excessive side loads on the input shaft. Misalignment can also cause a premature failure of the hub on your clutch disc and best of all, taking the extra time to index your bell housing can actually even free up some extra horsepower.
Follow along as Jeremy Stoermer from Holley shows you the steps required to properly bring your engine and bellhousing together:
Both Quick Time and Lakewood offer offset dowel pins in multiple designs to help you correct bell housing misalignment on most vehicles.
Pole Barn Garage bought back the 1959 Dodge D-300 truck that I learned to drive… Read More
Merricks Garage offers a comprehensive guide to efficient and effective electrical wire labeling techniques. [More...] Read More
This is a game-changing product from Speedway Motors: the bolt-in OBS Chevy 9-inch housing designed… Read More
Watch a checkered flag shift knob is made! There's no CNC machine or 3D Printer… Read More
Tackle the task of polishing and removing scratches from clear plastics quickly and easily. [More...] Read More
Witness the captivating journey of Model A Ford production from raw materials to finished cars… Read More