04-28-2024 | #1 |
Join Date: Apr 2007
Location: Lake Bluff, IL
Posts: 2,082
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Mercury DOHC 4 valves per cylinder V12 outboard
Saw a picture of one of these from a friend who attended CES. Hmmm...Mercury Marine DOHC 4 valves per cylinder, naturally aspirated engine--where have I heard that before? This one is an outboard, a V12 no less, displacing 461 cubic inches (7.6 liters) and making 600 horsepower. Now, when I was wrenching on Mercury outboards in my teens it was usually on a 4 cylinder 50 hp or 60 hp motor one guy could lift off the transom. This new one weighs 1200 lbs. And it has an innovated steerable lower unit (gear case) so the motor itself is stationary on turns. Anyway, just thought you might like to see more engine innovation from our favorite motor maker. Apologies if it has been posted before but I couldn't find it here; it actually first came on the market in February 2021, so I am a bit late to the party on this but I hadn't heard about it and really liked it. Oh and the price for one: $85,000. (Attached is a picture of a boat with four on the back; there is a video you can find of a 37 foot boat with two going 65 mph). Probably not going to drop one in my restomod Corvette.
Here is a link to a brochure on the Verado as it is called: https://mercurymarine.widen.net/s/qs...12_feb_22.html and there are many videos on it. --Bob
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2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough" Last edited by WARP TEN; 04-28-2024 at 11:26 AM. |
04-28-2024 | #2 |
Join Date: Jan 2010
Location: Mystic CT
Posts: 2,631
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Re: Mercury DOHC 4 valves per cylinder V12 outboard
Grandson of the Merc "Tower of Power"!
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04-28-2024 | #3 |
Join Date: May 2022
Location: Georgia
Posts: 82
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Re: Mercury DOHC 4 valves per cylinder V12 outboard
very cool...never knew. ...
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04-28-2024 | #4 |
Join Date: Jul 2017
Location: West Chester, PA
Posts: 378
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Re: Mercury DOHC 4 valves per cylinder V12 outboard
For you know, when 8 cylinders is too few, and six outboards is too many!
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1990 Black/Black ZR-1 #1155 1993 White/Red coupe (Regrettably sold) |
04-29-2024 | #5 |
Join Date: Apr 2007
Location: Lake Bluff, IL
Posts: 2,082
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Re: Mercury DOHC 4 valves per cylinder V12 outboard
Ha Ha--so true. Just think of a 37 foot boat with 1200 horsepower or a fifty footer with 2400. One video I saw showed the 37 footer doing almost 70 mph and I believe I saw somewhere that the one with four pictured was a 50 footer that could do close to 90 mph. Some interesting videos out there if you Google these engines. --Bob
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2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough" |
04-29-2024 | #6 |
Join Date: Jan 2010
Location: Mystic CT
Posts: 2,631
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Re: Mercury DOHC 4 valves per cylinder V12 outboard
Off Shore boats
Sutphens, Fountains, Cigarettes etc It's not un-common to run well over 100mph these days!!! And, that's NOT an Off Shore racer, the race Cats are around 150 (maybe more...) now! V hulls not much slower! You don't wanna buy the gas to run one.... (or water ski behind it...) You're probably not gonna be the most popular guy at the marina either.... screw 'em! Especially the blow boaters.... |
04-29-2024 | #7 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,193
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Re: Mercury DOHC 4 valves per cylinder V12 outboard
Ive got a few hours of footage of LT5s in mercury test boats, need to make it digital from VHS
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
04-29-2024 | #8 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,193
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Re: Mercury DOHC 4 valves per cylinder V12 outboard
Tease ... https://youtu.be/Sq6orDTnUxw
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
04-30-2024 | #9 |
Join Date: Jan 2010
Location: Mystic CT
Posts: 2,631
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Re: Mercury DOHC 4 valves per cylinder V12 outboard
LT5 Mercruiser sterndrive
What could have been? Just imagine it with a "Speedy" lower unit! |
04-30-2024 | #10 |
Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,444
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Re: Mercury DOHC 4 valves per cylinder V12 outboard
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