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
None. It is the stroke of the crankshaft. They both have 4 inch pistons.
counter-clockwise on the cap
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.
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.
It is 18436572. 5 degrees, before tdc and the plug gap is .035.
380
One has a longer stroke than the other.Crank shafts ,and rod lenghts,the only difference that I know of.Same block,ect .