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Discussion Starter #1
I have pair of bare D0VE heads that I want to put on my stock 73 Lincoln 460. Here's all the specs:

The D0VE heads have already been ported and have a 3 angle valve job. I don't know if they have the hardened valve seats(will those be necessary if they aren't?). I believe one of the valve guides is missing, I don't have the heads at home so I can't make sure of that though. There is also a crack in one of the heads in the water jacket which I was told should be able to be fixed/welded. I picked the pair up for only $100 because of this. Assuming I can get the crack fixed I will be putting these on a stock 73 460 with the D3VE heads currently on it. The pistons and cam will all stock. Might do an aftermarket intake if it is worth it.

I'm new to this kind of stuff with swapping heads but I have done some research. I believe all I need to do is to get the stock valve train components for the D0VE heads as they use the stud type rockers since the pedestal style the D3VE heads use won't work on the D0VE heads. I don't prefer to use roller rockers as the seem like more work and money. I'm not looking to race it just to get some more decent power out of it. I think from what I've read I can also use the original length push-rods with the D0VE heads. Am I missing anything here? Is there anything I need to do to setup the valve train properly once I install the heads? Will the intake ports line up with the intake and the oil drain holes line up with the block etc.? Also where do I find the right stock valve train parts for D0VE heads? I have seen most of the parts(valves, rocker, springs) on sites like RockAuto but I can't seem to find the rocker studs. I'm just hoping someone with more knowledge than me can point me in the right direction as I have limited experience with heads. Thanks in advance. My name's Matt by the way.
 

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Is the vehicle a 1973 Lincoln or just the engine?

You can gain a pretty good improvement with a simple timing set swap to straight up timing and a properly curved distributor along with dual exhaust with an H pipe.

Early small chamber castings are a bolt on. You will raise static c/r from the high 7's to about 9 to 1 netting about 3.5%.


The oem cast iron rail rockers are prone to chewing up the valve stem tips especially on the exhaust side. Since you will amost certainly have to change push rods for the early heads changing over to a more reliable entry level steel roller rocker set with rocker studs and guideplates will make for a more reliable package.



SJ
used 2b RHP



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Discussion Starter #3
Yeah the engine and car is a 73 Lincoln Mark IV.

I already swapped to the straight up timing set, I've got a MSD distributor curved pretty close to where I want it, it has dual exhaust, a posi 3.5 in the rear and about 2500 stall torque converter.

How much would the cost be for the cheapest roller rocker setup all together? I've heard that the heads have to be machined for the guideplates. I'm just trying to cost to a minimum, I don't have too much money I can spend.
 

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Yeah the engine and car is a 73 Lincoln Mark IV.

I already swapped to the straight up timing set, I've got a MSD distributor curved pretty close to where I want it, it has dual exhaust, a posi 3.5 in the rear and about 2500 stall torque converter.

How much would the cost be for the cheapest roller rocker setup all together? I've heard that the heads have to be machined for the guideplates. I'm just trying to cost to a minimum, I don't have too much money I can spend.

What are your initial and total timing specs? Full in at what RPM?

Raising the c/r with the early heads will offer 20 lb feet of torque at most with a slightly better exhaust port out of the box.

Your Mark is a real heavy weight. The modest increase in power may disappoint.



SJ
used 2b RHP


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Discussion Starter #5
It's been a while but I think the initial timing was around 15 or so and about 17 advance for about 32 all in by maybe 2800. Like I said I'd have to double check.

Yeah she is heavy so I'm not expecting a huge drastic improvement, I'm just trying to get a mild build. The heads however do already have all the porting work done on both the exhaust side and intake side so that should help a little more with power than just the c/r alone. Would a better intake make sense in this situation or will the stock one work good enough for what I'm going for?
 

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It's been a while but I think the initial timing was around 15 or so and about 17 advance for about 32 all in by maybe 2800. Like I said I'd have to double check.

Yeah she is heavy so I'm not expecting a huge drastic improvement, I'm just trying to get a mild build. The heads however do already have all the porting work done on both the exhaust side and intake side so that should help a little more with power than just the c/r alone. Would a better intake make sense in this situation or will the stock one work good enough for what I'm going for?

The iron heads work best with 34 degrees total timing. Some times up to 36 when C/R is low and quench open. Try more.

Port work will help. Headers will help immensly. Stan Johnson at FPA has a pair that will fit perfectly. That with the heads will make a huge difference!!!


SJ
used 2b RHP


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Discussion Starter #7
Sorry for disappearing for a while I had my diff fail, the ring bolts came loose and destroyed the gears, so I was a little distracted... How much are the headers you mentioned? There is very little room for headers especially on the driver's with the gearbox in the way but these will fit on the my Mark IV?
 

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I got a quote from Stan for 71 Mark III about six weeks ago @ $750 I wouldn't hold him to it as that was for my car, and, that should be real close plus tax and shipping. Link below

Dan

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I believe Hooker #6126 's will work as well. I use them on my Ranchero, fit quite well for all they have to snake around and the Mark IV has basically the same front frame/suspension as a mid to late 70's F/L/M intermediate. Around $600 new. Crites is said to have headers that fit 70's intermediates as well, have heard they don't fit as well as the Hookers, but are a bit cheaper. Never have seen them in person, only pics and testimonials from those who purchased/installed them. Hope this helps.

Here is a thread that might help.
https://www.460ford.com/forum/37-engine-tech/131159-6126-hooker-headers-lincoln-mark-v-w-pics.html
 

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I got a quote from Stan for 71 Mark III about six weeks ago @ $750 I wouldn't hold him to it as that was for my car, and, that should be real close plus tax and shipping. Link below

Dan

New Page 1
The 68-71 marks and the 72-79 are completely different animals.

Early marks shared the Tbird platform.
1972 and up Mark and Tbird are a stretched intermediate chassis. Torino, Montego etc..

Stan has a header for these vehicles.




SJ
used 2b RHP


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The 68-71 marks and the 72-79 are completely different animals.

Early marks shared the Tbird platform.
1972 and up Mark and Tbird are a stretched intermediate chassis. Torino, Montego etc..

Stan has a header for these vehicles.




SJ
used 2b RHP


:D
I guess I should have been more clear with my reply, it was intended for 73lincoln. I specified the Mark IV as the vehicle that the Hooker headers would fit, not a Mark III, sorry for any confusion I caused.
 

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I guess I should have been more clear with my reply, it was intended for 73lincoln. I specified the Mark IV as the vehicle that the Hooker headers would fit, not a Mark III, sorry for any confusion I caused.

I understood that but was not sure if the other principles did.


SJ

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Understood as well, thats why I mentioned it was for my 71 Mark, as the porter said T-bird based, things changed 72 on....the price received by me was for bare headers another $260 coated, that was in January. only giving the number for reference and rough budget, not speaking for Stan.

Dan
 

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Understood as well, thats why I mentioned it was for my 71 Mark, as the porter said T-bird based, things changed 72 on....the price received by me was for bare headers another $260 coated, that was in January. only giving the number for reference and rough budget, not speaking for Stan.

Dan

Stan's shop is only a couple of miles away from my 2. He makes a very high quality product. The local coating company does fine work as well.

Buy them coated !!! The reduction in engine bay temp is significant.



SJ



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Discussion Starter #15
The headers that you say Stan makes for Mark IVs, do they line up with the trans crossmember exhaust humps?

I just ask b/c I've read that the 6126 hooker headers don't quite line up and was wondering if Stan's fit better.

Also is the stock intake good enough for what I'm trying to do?
 

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The headers that you say Stan makes for Mark IVs, do they line up with the trans crossmember exhaust humps?

I just ask b/c I've read that the 6126 hooker headers don't quite line up and was wondering if Stan's fit better.

Also is the stock intake good enough for what I'm trying to do?

The headers stan offers are a mid length design with a ball flange. There is plenty of distance between the flange and cross member to negotiate.

There are pics on his website. Call him and ask which header he recommends and then go to his site and look at the pic.



SJ


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