Need help to id engine

[James 11]

This is a 2.5l but can someone tell me what is the horsepower, person selling don't want to open heads, pls any help welcome

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[tlwjkw]

how do you know its a 2.5 without a serial number or pullin' a head?.. max hp is gonna be 150.

[James 11]

well i think i can see it is a 2.5l as for the hp can this not be a replacement block? i'm taking a wild guess, there is no number on the freeze plug that is what make me thinking , i would really like it to be a 200hp?

[tlwjkw]

well i think i can see it is a 2.5l

what is it you see?..

[James 11]

cylinder castings are straight ,dont have the lumps of the 2.4l

[HStream1]

There appears to be a 98 date stamp on the block but I cant make out the month clearly Maybe a 5/98.

[James 11]

that is correct it is date when it was build

[mach351]

BB stamp should mean 150EFI 2.5

AA should be 2.0 150/135

CC was 2.5 150 XR6

DD was 2.5 175

EE and FF were 2.5 200.

Of course thats how it “should” be. I’ve seen factory carb FF’s that say 175. It goes back to what we always say about Mercury - that usually stuck to the book, but when they needed to get motors out the door, they would grab parts from anywhere and build it.

[James 11]

thanks now i'm getting somewhere what will the difference be between the 150&200hp visually

[tlwjkw]

cylinder castings are straight ,dont have the lumps of the 2.4l

no "lumps" don't make it a 2.5 jus so ya know..


all "fat blocks", 2.0 2.5 even tha '91 2.4 XR4 look identical on tha outside.. there are a few bolt on parts that can be cross referenced if it hasn't been molested over time...

"what will the difference be between the 150&200hp visually"


none....

[BOATMANBLUES]

jmo...if he wont let you pop the heads ,then don't buy it...pig in a poke