Jdd1977

My dad has a 496 Olds that a guy by the name of Dave Smith built him (the short block only) probably 20 years ago or so. He smoked the crankshaft years ago and I recently found the entire engine in storage. My question is which crank was most likely used to build the 496 and what would be the best place to buy a good solid replacement crank for the 496?

442Harv

I think most the stroker cranks, are offset ground Olds cranks? I bought 4 motors years ago, and when I checked them out, one of the cranks had 2.25 rod journals.

OLDSter Ralph

I thought Dave Smith is still around, I believe I saw his name mentioned on here recently. Someone on here will know more about him. Perhaps a Google search and phone call will help.
If the crankshaft was offset ground to increase the stroke, then different rods and rod bearings were used. I am not sure what was "smoked" on the crankshaft. rod bearings or main bearings, or both. Good luck.

joe_padavano

The only cranks available "years ago" were reworked factory pieces. If so, then the only options would have been a stroked 425 steel crank, a stroked 455 cast crank, or a stroked very rare 455 steel crank. Today there are aftermarket options.

The only way to know what's in there now is to open it up and look.