https://images.squarespace-cdn.com/c...w/Seven+Marine
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You can tell the Lamborghini V12s as the intake tracts are between the cam shafts. One day I’d like to learn why they did that.
...cruis'n with broadway joe namath out the loxahatchee river by his home in jupiter florida... https://www.powerandmotoryacht.com/....t-the-helm.jpg
All about airflow and packaging. Hard to beat a "line of sight" path. And the closer you can get the intake valves to the bore centerline, the larger valve you can fit in the chamber.
Early Ramcharger's C/Altered car.
https://motorbase.s3.amazonaws.com/u...6_CEMA__CL.jpg
Chrysler used their "longer is better approach ... Lots of down then up then across .. and they did nothing about where it really matters .. the turn just before the valve head.
http://media-cache-ak0.pinimg.com/73...712121182d.jpg
Conventional BBC head has a low port with a sharp turn ...
https://i.ebayimg.com/images/g/qocAA...FIO/s-l300.jpg
Water ports are the same on both heads , but look how much higher the intake port is. 200 -300 more horsepower .. easily. But it does take a very long valve stem hanging out in the port . Makes the head of the valve whip around like a flag on a windy day ..
http://www.usaperform.com/media/cata...ad_500x400.jpg
Even the exhaust side shoots for the moon ...
http://s3.amazonaws.com/s3.racingjun...e-AED-Carb.jpg
Yamaha leads the pack in airflow development. Line of site , like the Lambo . Centralized intake valve placement and to keep away from having to "bend the air" around a short side radius , they just put in a third intake valve . A bit ahead of it's time .. Americans have accepted 4-valve heads , even 4 stroke outboards with hokey lookin intake manifolds .. might as well accept the 5 valve as the powerhouse head of choice. :)
https://i.ebayimg.com/images/g/NRcAA...aFO/s-l300.jpg
Look how high the port is from the deck , and the angle it assumes . Could easily fit in the valley of a V configured engine , and have a almost "straight down shot".
https://motormission.com/wp-content/...8-1024x576.jpg
Ford coyote head:
Lambo....... hood clearance....
Nice line-of-sight port in this one. Any guesses as to what engine?