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stuhrling

Intake Manifold Gaskets 3.1l

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My neighbor has a 96 Olds Cutlass Supreme that has the usual leaking intake manifold gaskets problem. He was looking up replacement gaskets for this engine but found that there is a 1st design and a 2nd design for this. He cannot discern which is the proper version. Is there a way to tell this before pulling everything apart?

 

Appreciate your insight!

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The 1st L82 engine design are all ball & pivot rocker arms, the later 2nd design engines are all roller rocker arms & pushrod guide equipped.

 Pull off the forward valve cover & inspect the rocker arms to see which you have.

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You should be able to see into the oil cap opening well enough to tell which rocker style you have. May or may not need a small inspection mirror to tell for sure...I don't remember it's been so long since I've looked at a 3100.

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