With the new crankshaft installed, one can expect 25% to 33% less engine vibration. Additionally, wear on the main bearing journals will be greatly reduced. Automotive people know that it is impossible to completely dynamically balance a 4-cylinder, in-line engine without the addition of 2 rotating counter-shafts.
The type AB-2 crankshaft has been manufactured to original specifications, and will be in suitable condition to “drop in” to a properly prepared 1928-1931 engine block without further modifications. However, we recommend lathe-turning 20 lbs from the O.D. of the original flywheel, which would require it to be equipped with the V-8 pressure plate and re-balanced. But this modification is not mandatory.
The AB-2 crankshaft is ideal for use in connection with Cragar, Riley, or Ardun overhead valve set-ups as well!
Disclaimer: Burlington Crankshaft has no relationship with the original manufacturer of this engine. Specifications have been utilized from published material and examination of original equipment. It is an aftermarket part and accessory.
The crankshaft was designed and tested in the U.S.A., it is manufactured in China.