Reminds me of this from SEMA - I'm thinking it must be the same car. Turn up your speakers...

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The massive 5,000 hp Lycoming XR-7755 first ran in 1946, designed to power the next generation of large aircraft.

I wonder what the fuel burn rate is at cruise speed. Lots.

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Here is the huge 1918 Liberty V12 aircraft engine that launched the Lincoln Motor Company. On the left is Henry Leland with the company officers and the 6,500th engine built. It's advanced engine design used overhead cams, aluminum crankcase, liquid cooling, 45 degree angle, and 1,649 cubic inches. After WWI was over he began building the Lincoln Automobile.

730HP Mercedes/AMG V12 in the Pagani Huayra

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This picture reminds me of...

I was very fortunate and attended many cars and coffees with Grady Clay
We were chatting at one event and I told him that I had never heard a Porsche 4 cam motor run.
He told me, matter of fact like, "Really, I've had 20 or more of them in my day"


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Team McLaren,1968 7 litre Chevy alloy LT1 ‘Rat Motor’. 4.25 inch standard bore and 3.76 inch stroke with Moldex steel crank, Cloyes roller timing chains, cam by Vince Piggins group at Chev R&D. Production solid lifters, Forgedtrue pistons and Carillo rods. Dry sump pumps by Weaver and magnesium dry sump pans by Chev R&D. The L88 heads had 2.19/1.84 inch intake/exhaust valves with the ports enlarged and re-shaped. Crane aluminium roller-rockers. Magnesium intake manifolds had a 2.9 inch bore for each cylinder with a fuel injector into each of the curved and tuned length steel velocity stacks. Intakes were modified Crower with MacKay making the intakes, Lucas metering unit, Vetex magneto and tach drives from magnesium. That lot generated a real 650 bhp @ 7600 rpm with McLaren quoting 620 in-period . In ’68 the M8A won 4 of the 6 rounds and Denny the title. McLarens won every round of the series
HotRod magazine

Asking $10,000 AUD... (Faceplant marketplace - Mildura, Victoria, Australia. Not mine or associated).

"Australian made Rolls Royce Diesel engine circa 1968 . New starter , injector pump reco, new injectors . This is the unicorn your man cave has been waiting for or put back in service genuine 180 hp . Runs just like you would expect a RR to run . Pm for more details. Running video in comments."

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426 Hemi

I saw where one of these is coming up for sale on auction site. Make a nice coffee table.