downtime270

Wondering if anyone can help me ID my project motor. Its an '01 EFI merc, with the TBI.

The Merc S/N is : m096669
The Block Casting is : 10243880
The Head Casting is : 10239906

Its is a bravo 3 setup pulled from a 27 Rinker. My guess is a 330HP motor, but I can't find much of anything.

Also - The motor blew the headgasket and detonated to the point of cutting a fireslot between cylinders 2/4 on both the block and head. What I can't understand is why the knock sensor didn't resolve the detonation issue before it damaged the motor. Thoughts?


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Baja226sport

iTrader: (28)

Well it is definitely not a 330 hp motor. It is a small block. Serial comes back as 1999-2001 305 or 350 cu in.

Looking for the block # now.....

Baja226sport

iTrader: (28)

OK...it is a 350. Yr. 2001 260 hp

Oh...and that is not a good Serial for TBI.....Last merfcf TBI 350 was 1997

downtime270

I know its def. a vortec roller motor, but past that I don't know.. cast steel heads, and block. And its supposed to be. a 350.

downtime270

hmm - how did you find 260HP?

downtime270

It has a throttle body injection system, and its not an MPI motor. It has a std. distributor with the ECM controlling the fuel system. The S/N I pulled right off the side of the block. Stamped by Merc. weird...

Baja226sport

iTrader: (28)

Search the engine serial...comes back with 2 options, 230 hp 305 or 260 hp 350/ Block # is a 350 so....

Baja226sport

iTrader: (28)

Not arguing or anything, just the info I see from mercruiser

Baja226sport

iTrader: (28)

One way or another, not 330 hp. If it was a 350 magnum mpi it would only be 300 hp.....and that is the tops for the 350. ONly get more if you go up in inches like the 357, 377, or 383 from merc.

Boat Tech

Engine #0M096669, Model number 4332067N1 MEFI 3 (GEN +) MERCRUISER 5.7L EFI BRAVO (Propshaft Horsepower 260) The manufacture Date was on 08/02/2001.
Drive #0M136965, Model number 5441500LS MERCRUISER BRAVO 3, Gear ratio was 2.20:1.
Transom #0M280770, Model number 6211001N1 MERCRUISER BRAVO TRANSOM.

90-8613271 is for the Mercruiser service manual #24 you'll need.

Your engine parts below.
http://www.mercruiserparts.com/selec..._nbr=809500+99