Exhaust elbow riser question 3.0

[atomb]

I have an other elbow riser in better condition than the one thats on the manifold now. when i went to put the new riser on one side of the foot of the casting had a much narrower are that didnt really cover the full area where it sits . I circled the area in this picture this is not the actual riser. This one is like my old one the newer one has a muchthinner piece of cast iron there. Whats the story witht this its like the two risers are exactly the same except by the foot. regardless Im buying a brand new oem one not going to beat myself up over this..... this boating is expensivo.

 

[atomb]

Re: Exhaust elbow riser question 3.0

this is the used one i bought to replace have look at the difference. what do you guys think ? the casting number is mc-20-12076 the darn thing fits but where the thinner area is leaks like a sieve because the casting is so thin there. what engine will this one fit on i want to sell it because it is in really good condition --unfortunately i cant use it because the foot is not big enough to cover the exhaust manifold on my setup.. any help on what engine /manifold this wouild fit on would be greatly appreciated.. I went and purchased the right one but need to get rid of this one but dont want to sell it incorrectly like it was done to me.

 

[atomb]

Re: Exhaust elbow riser question 3.0

12076A2 look athe foot on this one
""""This riser will fit most 1982 to 1997 Mercruiser 120, 140, and 3.0LX 4cyl engines with round style one-piece risers. "