Mercruiser parts needed

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Jul 4, 2012
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I have twin mercruiser 255's and am in need of the exhaust manifolds for both. Can anyone direct me to the best place to get these and not spend an arm and a leg ?
 
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Bondo

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Re: Mercruiser parts needed

I have twin mercruiser 255's and am in need of the exhaust manifolds for both. Can anyone direct me to the best place to get these and not spend an arm and a leg?

Ayuh,.... What's a Merc 255,..?? What Vintage are these Merc 255s,..??
 

achris

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Re: Mercruiser parts needed

Ayuh,.... What's a Merc 255,..?? What Vintage are these Merc 255s,..??

Mercruiser 255....

Could be either A/

Ford 351W used 1973/4 (both I/O and I/B)

or B/

GM 350 used as an inboard (only) 1975-1980...

Does that help? (Probably not :confused:)
 
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Re: Mercruiser parts needed

Mercruiser 225....

Could be either A/

Ford 351W used 1973/4 (both I/O and I/B)

or B/

GM 350 used as an inboard (only) 1975-1980...

Does that help? (Probably not :confused:)

I believe the answer is B, they are in a 1979 wellcraft I will see if i can attach a photo or two
 

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Bondo

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Re: Mercruiser parts needed

I believe the answer is B, they are in a 1979 wellcraft I will see if i can attach a photo or two

Ayuh,... Are ya lookin' to replace the log manifolds, 'n use the rest of the exhaust plumbin',..??..
Or,...
Are ya lookin' to move to Center-risers, 'n eliminate a pile of piping,..??
 
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Re: Mercruiser parts needed

well i'm not familiar with these engines at all so I was looking just to replace the long manifolds, but if there is an easier (hopefully less expensive way) I'm open to hearing about it certainly.
 
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Re: Mercruiser parts needed

Ayuh,... Are ya lookin' to replace the log manifolds, 'n use the rest of the exhaust plumbin',..??..
Or,...
Are ya lookin' to move to Center-risers, 'n eliminate a pile of piping,..??


can you provide me a link to the center-riser style?

thanks
 
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Re: Mercruiser parts needed



so let me get this straight. I can order 4 of these at 162.00 each and replace the $400 ea ones currently on the boat? is there different numbers for port and starboard side?

sorry for all the questions....i inherited this boat and am a noob at it.
 

Bondo

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Re: Mercruiser parts needed

so let me get this straight. I can order 4 of these at 162.00 each and replace the $400 ea ones currently on the boat? is there different numbers for port and starboard side?

sorry for all the questions....i inherited this boat and am a noob at it.

Ayuh,... Those are not direct replacements, but, you could cut down on a mile of exhaust piping by switching styles, 'n coming straight back, 'n out...
Rather than piping gases foreward, then under, 'n then back, 'n out...

The page I linked ain't the exact unit ya needs, but a picture of what's available....

I'm also not saying it'll be cheaper, just newer, up-dated, 'n Better...
 

achris

More fish than mountain goat
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Re: Mercruiser parts needed

And you'll lose another mile of water hose... Change to the new style thermostat housing and you'll have a water hose coming from each side of the new housing to the bottom of the manifold, and that's it!!!

Chris.......
 
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