25 cubic inches...of lovely stroke.
The Deville was only available in the coupe and had a 454 or a 455 V-8. The Eldorado was a convertible and only had a 390 V-8.
155 is less than 390 and 390 is higher than 155.
From 31 Jul '18 to 25 Aug '19 is 390 days.365 days + 25 days = 390 days
1963
Over 210
counter-clockwise on the cap
None. It is the stroke of the crankshaft. They both have 4 inch pistons.
The 1961 Cadillac had a 390 cubic inch engine. The firing order is 18436572 with the number one cylinder on the front of the drivers side.
It is 18436572. 5 degrees, before tdc and the plug gap is .035.
The 390 Ford motor is an FE block and was made as a Big Block only. The small block or Windsor motor could be bored and stroked to have 390+ cubic inches. To build a stroker motor you have to do extensive machine work and parts matching. That process usually involves large amounts of money.
380
One has a longer stroke than the other.Crank shafts ,and rod lenghts,the only difference that I know of.Same block,ect .