w-30 question
 

I know my 1970 is 442 by the vin number.. is there any other number listed anywhere to verify it is a w-30 as the badges show??? the rear sway bars are boxed..but all the driveline has been replaced.... I know the car has had a frame off resto about 20 years ago,, it was supposedly kinda rough... they did not put the red fenders back on... I can find no paper work in the car... not under the seats, under the dash... in the trunk... I am just curious if there is some way to know if it came out a w-30