ok first off i was wondering if there was an external way to identify if your engine was a "w" engine or not.

i know the deal with the W stamped on the pistons but.....if memory serves right the W motor was the revision half way through 1987.

seccondly there was a link, any one got it?

 

http://www.engr.colostate.edu/~radar...eschanges.html

I believe you just have to look at the manufacturing date in the door sill. W motors start with April 87.

 

cool, when i get another job i am gonna start work on rebuliding a new engine but i want to use the cylinder heads from my car since they have been reworked a little over 3,000 miles ago, i just wanna make sure everythings the same