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-   -   Gil exhaust center to center dim (https://www.offshoreonly.com/forums/do-yourself-boating-budget/324417-gil-exhaust-center-center-dim.html)

getrdunn 03-25-2015 07:34 AM

Gil exhaust center to center dim
 
I have very little center to center side by side I am working with on boat restoration. Like 33" centers max. Anyone know for sure if that is a problem with Gil's
Tks
John

getrdunn 03-25-2015 08:03 AM


Originally Posted by getrdunn (Post 4283561)
I have very little center to center side by side I am working with on boat restoration. Like 33" centers max. Anyone know for sure if that is a problem with Gil's
Tks
John

I fabbed up a couple of engines on stands with the two inner Gil manifolds on in shop and come up with 33 3/4" That was with them nearly touching. That sound about right? Engine stands are slightly off in height so I ran a straight edge vertically from floor up along manifold and measured to crank center and got 16 5/8". With that said I come up with 33 1/4"

So unless I am way off I would have to say center to center dim on Gil's would be closer to 34"

Unlimited jd 03-25-2015 08:19 AM

With std deck stock heads yes, raised port heads 34", tall deck 34.5 iirc

getrdunn 03-25-2015 08:30 AM

Thank you. I was measuring as you posted however that kinda confirms. Do you happen to know what stellings are? From what I understand there is black and green series? Green are the larger tube and come forward and sweep back. Correct me of I'm wrong. I am in a dilemma with such narrow centers. CMI etops I am coming up with 33" measuring same way.

Unlimited jd 03-25-2015 11:15 AM

Make sure you line up the crank pulley across, there will be stagger in the exhaust ports from engine to engine. I believe e tops are 33 1/4, stellings black I believe fit with 33" centers, as do some other models but I'm not sure which particular ones. I'm rigging my boat wider now as to not run into this issue. My last boat at 34" can't get tall decks in.

Unlimited jd 03-25-2015 11:19 AM

http://www.custommarine.com/pdf_docs/CMI-catalog-lo.pdf
32 5/8

getrdunn 03-25-2015 02:12 PM


Originally Posted by Unlimited jd (Post 4283649)

Thank you very much. I thought I had run across info a while back on those and then went to look it up the other day again and couldn't find it. I appreciate it. By chance do you know if the black or green label makes a diff on the Stellings.

Ya this narrow center to center sucks. Doesn't leave you with many options. If you happen to know on the different stellings I'd appreciate the info.

Tks again for the help. I was gonna call a number I found from an old post for stellings. Not sure if it's still good or not.

John


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