Need help identifying old Merc carb

[dfrants]

Off of an old V-6, part #1374-5427-c (or is that a casting number?) and WH. It also has 41-11468 stamped on it. Trying to see model/year/hp it's off of, thanks.

 

[Dukedog]

they usually have a "stamped" number following tha WH which would narrow it down.. if not, like you say, it may need ta be identified by tha jetting..
do you have just tha one carburetor?

 

[dfrants]

No, a set of three...trying to find the right gaskets and parts for them...

 

[Dukedog]

any WH series kit will work.... 'bout only difference is venturi size and jetting... do you have tha air box?.. it can help narrow down what motor they came from....

 

[dfrants]

I have the air box, I believe this is a pre-1990 model.

 

[Dukedog]

box square with what looks like plastic "organ" pipes on each side or is it rectangle with a few small round openings on each side?

 

[dfrants]

rectangle

 

[Fun Times]

Search the 1374-5427 number online for some general information as there are lots listed for sale mostly EBay but a few others too with engine sizes and years mentioned,,, One place suggested it came off as a bottom carb while another said there are 2 with that number being the middle and bottom.

An example: This Mercury Outboard V-6 Carburetor set is a perfect fit for your 150 HP, 175 HP, or 200 HP engines. The set includes two carburetors with part numbers 1374-5427 …

Another,
Carburetor for Mercury V-175 Outboards.
This Carburetor is the WH-4-3 model Bottom carburetor.
The casting number is 1374-5427.
Jets
Main: .074
Idle Air .048
Bowl Vent Jet: N/A,

1374-5643A10 Mercury Black Max Carburetor | Green Bay Propeller & Marine LLC

Green Bay Prop offers used boat parts such as Mercury 175HP 1374-5643A10 Carburetor (WH-4) Shop securely.

greenbayprop.com

 

[Dukedog]

rectangle

probably a 135/150/175 2.0 motor.. possible 175 2.4.... do you have tha complete power head?.. if you do there is a "build date stamped on tha port side, at tha base of number 2 on tha block half.. may be hard ta see but its there... m/d/yr.... also may have a serial number stamped in tha welsh plug on top of tha block... that carb in tha advertisement has tha round bowls/floats which indicate a first generation motor ('76 ta '79 maybe)

may not be this easy ta see or stamped as well as this one is but its there............

 

[dfrants]

It's stamped 11 5 86, but... this is a real Franken-Merc motor...The front half, carbs/intake/reed block look older, like from a different motor...

 

[Dukedog]

lotta those around.. pics would help....