95 502 Mag Mpi elbow & riser gaskets
#1
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Most likely a stupid question but, here goes.
Stock exhaust manifolds, risers & elbows. Took everything apart, has two different type of gaskets. One type has 4 equal oval openings which match the manifolds, elbows & risers. Other type has two oval holes & two small restricted holes in place of the ovals. Which would be preferred/correct? Thank.
Stock exhaust manifolds, risers & elbows. Took everything apart, has two different type of gaskets. One type has 4 equal oval openings which match the manifolds, elbows & risers. Other type has two oval holes & two small restricted holes in place of the ovals. Which would be preferred/correct? Thank.
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Well, after using the search function I found a thread from 2015 asking this exact question. It answered my question fully.
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Open cooling:
One with 2 little holes is always placed against riser.
If spacer block is used between manifold top and riser, the 4 large oblong hole one is placed on manifold, and again, one with 2 small holes just under the riser.(top of spacer)
![](https://cimg2.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/1600x1600/image_4d4c735c6a502b7a812ed22d3be80b2484efd31b.jpeg)
One with 2 little holes is always placed against riser.
If spacer block is used between manifold top and riser, the 4 large oblong hole one is placed on manifold, and again, one with 2 small holes just under the riser.(top of spacer)
![](https://cimg2.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/1600x1600/image_4d4c735c6a502b7a812ed22d3be80b2484efd31b.jpeg)