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  1. #1
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    Cool New 2.5-Liter 2-Stroke Mercury powerheads being produced

    Mike Hill posted this on his Facebook page, and I'm happy to see that the Mercury two-stroke 2.5-liter V6 is still being produced, albeit in very low numbers to race teams only. I'm betting it's expensive.

    Click image for larger version. 

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    Facebook | YouTube | Vintage Outboard Catalogs
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  2. #2
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    considering how quickly he took that, and the NGK schedule down I'd assume it's not something that they want posted just yet.

  3. #3
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    Im a little cornfused by the lack of support for these engines. 9/10 OG gofast guys still run the V6 two stroke Mercs and while I get the fact that the new and improved four stroke era is in full swing GM still sells sbc and BBC crate motors and blocks and all sorts of parts at reasonable prices to support the ones who supported GM for all those years. Why does Merc not do the same? Market demand is present so? I remember clearly the first crate motor I bought from GM, it was priced about the same as a rebuild but brand new GM plus good heads and cam etc made it a no brainer. GM sold and continues to sell tons of those crate motors. Maybe this might pass over the eyes of someone who can see the market, the love of a strong brand and the passion to care for the most dedicated long standing consumers of Merc products and make this all happen? Or not

    Lots of old OMC stuff to buy and mod
    Hydrostream dreamin

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  5. #4
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    Although I'm an OMC guy, I genuinely always liked the 2.5 Merc series, so I think this is great news for the sport overall. There's a reason that 2.5-based motors still have such a fan base. Does anybody know what this replacement motor equates to as far as previous models ? I'm confused because it says carbureted, but also says Formula-1. So is it an S-3000 type block, or more like a European XR2 offshore carb race motor ?

    Matt

  6. #5
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    The amount of HP per cubic inch is incredible.

    So these are the 280 porting?
    We have invented the world; WE see

  7. #6
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    Quote Originally Posted by MattGreen View Post
    Does anybody know what this replacement motor equates to as far as previous models ?
    http://www.ngkf1.com/mercury-engine-rules/
    Josh Peterson

  8. #7
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    Hummnn...was just getting ready to sell my sst 120 stuff. Maybe I'll hold off a bit.

  9. #8
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    Interesting. Would be nice if they start producing the 12” midsection again too.

  10. #9
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    Quote Originally Posted by nitro_rat View Post
    Thanks, I'm out of the loop on what Champ and SST-120 racing has evolved to. I had no idea they had gone to a stock-ish 2.5 carb.

    Matt

  11. #10
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    Can you use a slide intake or factory EFI on one of these, or just carbs? Just for personal, not sanctioned racing use.

    83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
    We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
    Rebuild thread:
    http://www.screamandfly.com/showthre...-it&highlight=
    http://www.screamandfly.com/showthre...cs.&highlight=
    Videos

  12. #11
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    Quote Originally Posted by MattGreen View Post
    Thanks, I'm out of the loop on what Champ and SST-120 racing has evolved to. I had no idea they had gone to a stock-ish 2.5 carb.

    Matt
    There is a 2.0 and a 2.5 class. I'm sure they're trying to keep the series alive with limited supplies of new parts available.

    Quote Originally Posted by XstreamVking View Post
    Can you use a slide intake or factory EFI on one of these, or just carbs? Just for personal, not sanctioned racing use.
    Yes, entirely possible to go back and forth from carb to efi on any 2.0/2.4/2.5 with the right parts on hand...
    Josh Peterson

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  14. #12
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    This block is most closely related to the FF 200 block. I heard that the pricing will be somewhere around $7,500..... again that is what I heard. It will be available to F1 teams and land n sea dealers. I'd be curious to see the availability of these once it officially gets released. I also saw that BVI who just started selling a billet 260 front half is working on a billet 280 block. With how reasonable the pricing was for their front half I assume the pricing for their 280 block will be very attractive.

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  16. #13
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    Other than the block and front half all the components were still being produced. It just took someone to put the original molds back into production and assemble the rotating assembly.

  17. #14
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    Does any one know what the difference in weight is between the new F1 Mercury and the old F1 2.5 . Most tunnel boat racers do not like a lot weight up high makes boat top heavy and changes center of gravity very quickly.
    Enjoy Life Keith

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