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-   -   Block identification (https://www.offshoreonly.com/forums/general-boating-discussion/378245-block-identification.html)

Alzilla 01-30-2023 12:25 PM

Trying to get the right yr if that makes a difference, im a GM guy but knowledge of marine engines is minimal,

DrFeelgood 01-30-2023 12:33 PM


Originally Posted by Alzilla (Post 4857924)
Trying to get the right yr if that makes a difference, im a GM guy but knowledge of marine engines is minimal,

It's probably a 96-99 Vortec L31 based setup. Roller cam. I don't think the Vortec L31 went through any real changes through its production run.

Pictures would help confirm.

F-2 Speedy 01-30-2023 12:42 PM

See if you can see the stamping on the front left pad of the block on the machined area, the block casting date will be on the other side from the casting #

https://cimg7.ibsrv.net/gimg/www.off...83b1b5ceeb.jpg

Griff 01-30-2023 01:12 PM


Originally Posted by Alzilla (Post 4857921)
the other number is a plate that is from Mercury,

If its actually the Merc serial#, it would be 0F774641 and any Merc dealer can run the serial# and give you exact details.

DrFeelgood 01-30-2023 01:26 PM

https://cimg4.ibsrv.net/gimg/www.off...cd75906a95.jpg

Alzilla 01-30-2023 02:53 PM


Originally Posted by DrFeelgood (Post 4857925)
It's probably a 96-99 Vortec L31 based setup. Roller cam. I don't think the Vortec L31 went through any real changes through its production run.

Pictures would help confirm.

i added 10

DrFeelgood 01-30-2023 04:05 PM


Originally Posted by Alzilla (Post 4857954)
i added 10

Where?

Alzilla 02-01-2023 07:56 PM

Pics
 
Apparently i need x amount of post before i can add the pictures i took, i know itll help everyone help me understand what im doing.


Originally Posted by Alzilla (Post 4857741)
Good morning

Thank you for letting me join, i am looking for information on my block number #F774641 so i make sure i order the correct parts as i rebuild this engine, but i cant find anything

al


Brad Christy 02-02-2023 06:33 AM


Originally Posted by Alzilla (Post 4858231)
Apparently i need x amount of post before i can add the pictures i took, i know itll help everyone help me understand what im doing.

Alzilla,

Just post make ten posts in some random dead thread. Easy peasy.

Thanks. Brad.
(937)545-8991

Knot 4 Me 02-02-2023 08:08 AM

You are on post 7 so just add three more posts to this thread. Most people will just count them down. Post 8, then 9, then 10, then pics! :coolcowboy:


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