New beater truck, and can't find much info under the hood. all of the stickers are gone, and I have no manual.

It's a 1990. I need a camshaft, and can't determine if the engine is a 351W, C, or M.

Hopefully this is an easy question for someone here... I believe there was only one 351 manufacturer in '90, just don't know which one.

thanks in advance,

Aaron

 

It is a W.
The C was only produced for a few years in the 70's.

 

Thanks. I did eventually find a designation on the engine. You are correct.

 

True about the 351C but the 400 was used through the 1981 model year.