Horsepower rating- 5.7 Alpha one

crownlyfe

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Jul 27, 2015
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I have been searching and can't find the horsepower rating for this engine? Any help would be much appreciated. Thanks in advance!
gO1vvr6.jpg
 

tpenfield

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If you get the serial number off of the engine, you can nail it down. The 5.7's are generally in the 260HP range.
 

crownlyfe

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Jul 27, 2015
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If you get the serial number off of the engine, you can nail it down. The 5.7's are generally in the 260HP range.

I got the serial number but is there a site or something where i type it in and it display, I tried googling but couldn't find anything alongside my serial number
 

Fun Times

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I got the serial number but is there a site or something where i type it in and it display,
There are a few sites that starts the process of finding more info about the engine but there are a few other steps needed to be done to confirm the info. Posting the serial number makes it the easiest way to find and confirm any guesses.
 

Bondo

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I have been searching and can't find the horsepower rating for this engine?

Ayuh,... Welcome Aboard,.... Figure 'bout 240hp, with a 2bbl. carb,....

'bout 260hp with a 4bbl. carb,....

'bout 280 claimed hp with an Efi,....

'n 'bout 300 claimed hp with the Mpi,....
 

crownlyfe

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Thanks for the replies fellas, I put it in one of the mercuriser part sites and this came out

MERCRUISER TB5, W/PS, TWOPCEX, WORO 5.7L ALPHA


Not a clue what the acronyms mean but i'll go ahead and have to check if it's 2 or 4 barrel thanks for the help everyone!
 

thumpar

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Jun 21, 2007
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Just post the serial number here. There are people with access to more info than you can find on on the open internet sites. It is not a security risk to give out the serial number. I even have mine in my signature.
 

JASinIL2006

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Feb 10, 2012
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5,525
Thanks for the replies fellas, I put it in one of the mercuriser part sites and this came out

MERCRUISER TB5, W/PS, TWOPCEX, WORO 5.7L ALPHA


Not a clue what the acronyms mean but i'll go ahead and have to check if it's 2 or 4 barrel thanks for the help everyone!

TB5 = Thunderbolt V ignition, W/PS = w/power steering, TWOPCEX = two piece exhaust (manifold and riser), and I *think* WORO = without remote oil filter

(I'm not sure about the WORO, because my serial number yields WORO, too, but I do have a remote oil filter... maybe it was added later by someone else?)
 
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crownlyfe

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Jul 27, 2015
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Just post the serial number here. There are people with access to more info than you can find on on the open internet sites. It is not a security risk to give out the serial number. I even have mine in my signature.

It is OF787576 btw have the same exact boat and year! except in maroon love it!
 

crownlyfe

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Jul 27, 2015
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TB5 = Thunderbolt V ignition, W/PS = w/power steering, TWOPCEX = two piece exhaust (manifold and riser), and I *think* WORO = without remote oil filter

(I'm not sure about the WORO, because my serial number yields WORO, too, but I do have a remote oil filter... maybe it was added later by someone else?)

ohhh interesting thanks for the response, that's all I was able to yield for the engine so far!
 
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