Donor vehicles for Roller Blocks

Wouldn't any Mark VII have a 5.o roller block with an AOD?
The LSC's had 5.0 HO motors in certain years which are good for another 25 hp at the brakes.

What about a 91 Mark VII? The reason I ask is because I see one every day in someone's back yard on my way to school. It has weeds growing up all around it and it looks like it has the typical blown out Lincoln air suspension.

I might be able to get it cheap.

 

Guessing I'm beating my head on the wall -- EVERY passenger car 5.0 from '86 till they were replaced by the fat girl 4.6 are roller... '88-'92 MK-VII are 225Hp HO, same as Mustang('86 & '87 LSC are HO as well but use the poorer flowing E6 heads, Hp for those is 200)...

 

Mark 7's and Thunderbirds both came with the 5.0 H.O. The attached pics are a 89 Mark 7 motor and a 92 Thunderbird motor sure many other years also have it.
Also both of these come with the AOD with TV activation, AOD went AODE in 93 I believe.

 

After all of the cool stuff I am getting from the 75 4 door Maverick, I'm thinking the 88-91 LSC is the next dream donor car for me now. It has the H.O. roller motor, AOD transmission, 8.8 3.55:1 rear end, and seats (and maybe the console too) that I want. A 91-91 Thunderbird ,or 88-91 Mustang GT would also be great for the same reasons.

I have my eye on a Mark VII with weeds growing up around it about a mile from me. I will probably stop by and and ask about it soon. I haven't been close enough to tell if it is a LSC. I know it has fog lights under the bumper in the same spot the LSC's have them.

Any other way to tell a LSC from 100 ft away?

 

If you asking me man I have a hard time telling you from 100 inches away, once the hoods up I can tell you what's in it and see what the vin tells me but beyond that I'm lost, sorry I'm not more help

 

All you gotta do is find one with two "nipples" in the top, drill and tap them if they are not already (I had to) and install the roller lifters and the retainers. Only two new bolts needed to hold down the retainer. Those are the two shiny bolts at each end of the rusty looking sheet metal retainer.

Mine was an 88 O'Reilly reman block for a truck, +.040 overbored. The lifters and retainers were bartered from another member on here.

 

Now doesn't that require a small base circle cam as well as different pushrod lengths?

 

Nope, all later blocks from '86 can use the factory roller cam, push rods must match type lifter...

 

My cam has a small base circle, but only because that was the cam that a friend gave me. It had a standard cam in it that was not small base circle.

 

Do know the size and depth of the hole for the bolt? ( or is this one of those " doesn't matter" situations.)

MD

 

The top of the nipple wasn't flat, and had a casting line in it, so I ground it as flat as I could so I could center punch it and start drilling a hole. I just found a bolt that fit in the retainer hole, and drilled and tapped the hole to fit that bolt. It isn't a very long bolt, maybe 1/2". It is not holding anything with any pressure, just holding that retainer from moving around. Clean it out, use locktite. Forget about it.

But no, I don't remember what size the hole was drilled to fit. Doesn't have to be very big, just don't let the retainer move around once it is bolted down.

 

Factory bolt is a 1/4" x 20 x 1/2" long...

The boss is machined till it's maybe 1/8" tall at most, threaded depth approx 5/8"...

(yes I just checked the dead 5.0 from my T-Bird)

 

1/4-20 1/2" deep sounds about right...

 

And IIRC, one of those holes is right above a cam bearing.

 

yes indeedy. you can retrofit this same oem spider assembly onto a non-roller block but need to be even more careful of punching through into the cam bearing.