TC88A or B, Early/Late...How Can you Tell

[RibEye]

What is the difference between TC88A and TC88B engines? How can you tell when one you have? When were A and B engines used?

Early and late model year...how can you tell for sure which one you have?

Thanks,
Rich P

 

[Bud White]

A is in everything but softail
B is the balanced softail engine

early or late of the production year is told by vin when it was built

 

[biscuit]

As mentioned the "A" is in everything but the Softails,which have the balanced "B" motor.
Look at the engine mounts for confirmation.The "B" motors are solidly mounted to the frame.

 

[Breeze3at]

Another tell, front motor mount bolts on "A" engines are vertical. Front motor mount bolts on "B" are horizontal.

 

[ooheritage]

the A vibrates on the frame like its going to come out of there, the B doesn't.

 

[Thorns]

The best motorcycling experience is where the engine is rubber mounted, shakes at idle, and is smooth above idle. It's an "A" engine. The "B" enigne is a solid mount to frame, and doesn't shake at idle, but will have a buzz at higher rpm's at higher speeds. Another controversy.

Thorns