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jws123 replied to the thread Mercruiser 454 I Need Help Identifying This Engine.

Olsen Engines is closed. I will look into the others thanks. I did message one a few days ago but have heard nothing back.

Jun 14, 2026
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jws123 replied to the thread Mercruiser 454 I Need Help Identifying This Engine.

Im from Nj almost all machine shops have closed or are shady as fk. I was trying to hone the cylinders to get some surface rust out of...

Jun 14, 2026
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jws123 reacted to Scott06's post in the thread Mercruiser 454 I Need Help Identifying This Engine with Like.

Try michigan motorz they do reman engines not sure if they offer short blocks but they have long blocks

Jun 14, 2026
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jws123 replied to the thread Mercruiser 454 I Need Help Identifying This Engine.

The drive is already removed does anyone know a good place to get short blocks? The engine i was going to use after honing the cylinders...

Jun 13, 2026
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jws123 reacted to Scott Danforth's post in the thread Mercruiser 454 I Need Help Identifying This Engine with Like.

The intake has to match the heads. As stated prior, your magnum has rectangular ports and needs a rectangular port intake The motor in...

Jun 10, 2026
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jws123 replied to the thread Mercruiser 454 I Need Help Identifying This Engine.

Thanks for the information!! I have one other dumb question that im confused about. This is the engine In the boat its seized and scrap...
Jun 8, 2026
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jws123 reacted to Scott Danforth's post in the thread Mercruiser 454 I Need Help Identifying This Engine with Like.

Stock L29. 330 hp 10237297...454.......96-up...4-bolt, Vortec 7400", "L-29" Gen.VI Oval port 10114156...91-up...oval...OPEN...Gen.V &...

Jun 8, 2026
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jws123 replied to the thread Mercruiser 454 I Need Help Identifying This Engine.

Here are some pictures yes i know its dirty its getting dunked once its taken apart.

Jun 8, 2026
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jws123 replied to the thread Mercruiser 454 I Need Help Identifying This Engine.
Jun 8, 2026
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jws123 reacted to alldodge's post in the thread Mercruiser 454 I Need Help Identifying This Engine with Like.

Look below the distributor on the block deck for the casting number Then see if the number comes up in this link...

Jun 8, 2026
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jws123 replied to the thread Mercruiser 454 I Need Help Identifying This Engine.

I also found 10232427 stamped on the top of the pistons I have no knowledge of this engine if it was ever built ect.

Jun 8, 2026
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jws123 posted the thread Mercruiser 454 I Need Help Identifying This Engine in Mercury MerCruiser Sterndrives & Engines.

Well I am back! I bought a speed boat its been a few years since I have owned a boat. The 454 engine in this boat is shot It had water...

Jun 8, 2026

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