Dont have my books here at work,,these big car or Chevelle manifolds?? Thanx 3989310 and 929225 both smoggers

This is one of those parts that's not for big cars or Chevelles ect,ect, they used the same on all models. Your first one shows to be 3989310 as 1971-72 RH 402/454 The number 929225 does not show up, but 329225 does, and it's for a 1973-76 LH 454 check your number to make sure that it's not the latter of the two I posted, I don't even show any numbers starting with a 9 in the exhaust numbers. But my listings stop at 1976.


Rocky

Found em,, Thanx Rocky !!!