Thank you for your quick response.
It is always nice to know that there are individuals out there who are trying to find accurate information about Lincoln cars and engines, no easy matter!
I will try to locate as much information about the issue with low hood line clearance associated with the slab side Lincoln and how that relates to head manifold choices. My friend Jeff (I, am the 50 Chev truck guy) in adamant about not running any type of hood scoop, cowl hump, you name it...he will not go there!
One only has to understand a very limited amount of performance theory to realize the benefits derived from the 58 heads when compared the latter small port/valve design, especially when one builds a stroker motor. The 1958 MEL heads have a very generous port that definitely pushes the performance paralysis up quite a bit.
This is not to say, however, that the Big port MEL heads are the best solution for everyone. It does, however, becomes somewhat of a requirement on the 500" and greater displacement engines though. Even Jeff's 58 MEL heads with their big port & 2.250 intake / 1.880 exhaust valves (aftermarket valve size), won't need to be revved up. Put these same heads on a 430/462, and it will need to pull higher RPMs, but I wouldn't suspect it to be to high though. I would recommend finding someone who had experience with the early Marauders if possible. From what I have read, they were a very high torque engine @ low RPMs with an extremely durable foundation. These engines were installed in extremely heavy luxury cars with freeway gears and very tight converters, and from what I understand, they ran like pretty darn hard for there time-frame. They did have their problematic issues, but I would suspect that the majority of their problems can easily be remedied by using what FE parts will interchange or having custom parts made up.
If one were to run a 430/462 displacement MEL, they could consider running the small port 61 and later heads with pocket porting and valves from the marauder or super marauder (2.140/2.080 intake valve & 1.770 exhaust valves). One would need to pay attention to piston to valve clearence here and piston valve relief issues. I would recommend aftermarket pistons, seems to be the popular trend on the MEL forums.
As for the nauseating smashed-plenum intake manifold that resides on the 61 and latter small port heads. I have the most difficulty excepting the intake design, or lack of, more than the small port heads, yeikes! This is not to say that a good intake requires large runners that are positioned in a sky-high latitude, but they should have at least a reasonably realistic flow path that is somewhat less torturous than the smashed plenum MEL design. Simply stated, the latter intake is great for those cases where one wishes to retain the stock air cleaner housing/silencer. GREAT! Love the resto guys and gals.
Close the stock hood & no one would know that you've modified the car, less possiably the exhaust note. This is the problem with the latter head design, intake manafold options are nonexsistant. This again is my opoinnion. and you know what they say about opinions. Maybe someone else can chime in about intake manafold options for the later MEL small port heads. Come to think of it, manafold options are even slim for the Big port MEL heads.
I hope that I haven't thrown to much water on someone's fire. I would rather find the best solution for a vehicle I am building so that I can be reassured that I have built the best combination possible. What combination is the best for myself might not be the best for the next person, "live & let live."
The following guy, CHRISTOPHER MCKITTERICK, is an individual whom likes the look of the hood scoop on his very sensible 1964 LINCOLN. From what I understand, he was not required to run the hood scoop with his tri-power setup, he just wanted the visual impact/accent of the scoop. Please check me out on this matter by visiting his sight @
http://www.sff.net/people/mckitterick/Lincoln/Lincolns1.htm
As for the performance aspects of the MEL engine, you might want to visit the following Internet sight:
http://www.mikesteinberg.com/my_story.htm Mike Steinberg has been very helpful with Jeff's project that is still a work in progress. His sight is incredible!!!
I wish you the best with your project. You should have a great time with the car...no mater what direction you choose to go with it. I will be getting back to you with more information as soon as I locate it.
P. S. My 50 Chev 1/2 ton has enough room to swallow a roots supercharger, no scoop required. This is a scenario where one knows its blown just by the sound it omits. Than again, its not a Lincoln. One has to love the luxury cruisers, especially the sleepers.
Take care & God bless, eric.