Will this early 258 manifold fit on a late 258? - JeepForum.com
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Unread 03-13-2010, 03:28 PM   #1
243
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1983 CJ7 
 
Join Date: Sep 2002
Posts: 3,282
Will this early 258 manifold fit on a late 258?

This is the Edelbrock SP2P I picked up knowing it was for a 258 but not know if it would fit in place of the stock aluminum intake. It looks like it would need longer bolts and this would probably require a exhaust manifold change but I am not sure.






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Unread 03-13-2010, 03:52 PM   #2
Fjguercio
Web Wheeler
1978 CJ7 
 
Join Date: Dec 2007
Location: Burnsville, MN
Posts: 2,814
Interesting find. The Edlebrock one has longer mount flages.... that would be a match for the older cast iron exahust manifolds. Cast Iron Exhaust Manifolds were used on my 1978 and I think 79 and was changed in 80 or 81. Might be able to shorten those longer mounts to 1/2" so they can be used with header or modern exhaust manifold.

I also saw a pic of some stand offs pictured here on JF some time back... Used the stand offs with the Tall Edlebrocks Mounts to mate up with std header. Did not look the best but was installed. The long 258 are hard to seal with right stuff, IMO.

All 258s will have the same exhaust port location.

Note the Edlebrock does not have sensor holes... so using a manifold heater below carb a nice thing to have is no longer avail.

Fred
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