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Guest Message by DevFuse

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1986 Lincoln Mark VII LSC Mods

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3 replies to this topic



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Posted 16 November 2015 - 01:38 PM

I have a '86 Lincoln Mark VII LSC,,I wanna do a few mods to it to give it more put put, without doing major changes. A friend told me I could take the heads off any '97-'01, I think, Ford Explorer, the GT40 or GT40P heads and slap them on my High Output 5.0. Along with putting a mild cam in it, would my stock internals and transmission ( 5 speed AOD) be able to handle it? He has a 1991 Foxbody Mustang with another HO 5.0. 

#2 OFFLINE   scorpion


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Posted 21 December 2015 - 06:14 AM

You can swap over to GT40 heads and other measures like that.  I have found out that these yield some decent gains, but not a lot for the time + expense.  The biggest bang for the dollar for me in the past was to have the rear axle gears changed to a 3.89 - that provides some quickened acceleration times and a kick in the pants off the line performance. That's the route that I would go.

#3 OFFLINE   Robert


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Posted 21 December 2015 - 06:50 AM

I am familiar with the Ford GT40 heads and have prepped several sets for racing applications. They do make an improvement. I think what Scorpion is pointing out though is that even though different heads and a matching intake will increase horsepower, a rear set of axle gears will offer better acceleration and I happen to agree with that.


I have a 1969 Mach1 and it has factory 4.30 gears.  Another 1969 that I have came with 3.25 gears and I swapped them out with 3.89s and they made a big difference.  When I worked at Shelby, we used 3.73 gears in the GT500KRs while other Shelby models used 3.31.


Quite simply put, axle gears is well worth the investment.

#4 OFFLINE   70 Mark V

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Posted 24 December 2015 - 04:44 AM

You can always drop a heavy 460 V8 anchor in there from a 70s Lincoln ;)

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