This is an NOS cam PN 1635763. My Mopar camshaft ID chart shows this to fit the 1956 Dodge and Plymouth 270 motors which should be Poly and Hemi blocks. It has the factory short snout which would be needed if converting to the Chevy water pump. It could also be used in the 241 Dodge IF you are converting to the Chevy water pump since the stock 241 water pump uses the long snout. This cam will not work with the later 315 and 325 Tall Deck motors due to lobe orientation issues on at least two of the lobes. The box that it came in is old and very worn but will be included with the purchase. Flat Rate Shipping of $25 via UPS to US locations (lower 48 states)