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Also, look in the lifter valley area. Does it have pads cast in the middle? As in, is it a roller ready block? I had a 1986 302 out of a Mark VII, and it was a roller block, the lifter bores are taller and it the top of them are machined for the spiders. And it had tapped threaded holes in the middle bosses for the spider retainer. You may have a block like this, but it might have not been machined and just used the regular flat tappet camshaft setup.
Do you have any more numbers on the outside of the block in the starter area?
That I don't know, it's got a full EFI setup on it, kind of looks like the 5.0 Mustang intake but I don't think it is. I was told it was a 1992 engine but it's not the newer style plenum that those came with.
I'm putting an intake on it this week and will have better access to the valley to look around in there.
E6SE the engineering number prefix identifying it as having been engineered by the Thunderbird department in 1986. It does not mean it's a Thunderbird block as it could have been used across the entire Ford lineup where a 5.0 was available. BA is the change level suffix. The other numbers are just casting or core ID numbers. You'll need to find the date code to know the casting date of the block. It looks like a screwed on tag with numbers and letters on it.
it's got a full EFI setup on it, kind of looks like the 5.0 Mustang intake but I don't think it is.
The early car intakes are much the same.
Originally Posted by lvin4jc
I was told it was a 1992 engine but it's not the newer style plenum that those came with.
You need to ID the cylinder heads, look for a capital letter cast in on the outside top corner next to the valve cover, if it's a "S" they are E6SE(86) cylinder heads while a later motor should have E7TE heads with a "T" in that location. But even that isn't a certainty, that same head/block combo was used in most cars up until they swapped to the modular motor in '92, and it did have a roller cam but not the same one that was used in the Mustang.. it was quite a bit smaller. With it having a car intake that is most likely to be the lo-po(150hp) 5.0 used in the Crown Vic and other passenger cars.
You need to ID the cylinder heads, look for a capital letter cast in on the outside top corner next to the valve cover, if it's a "S" they are E6SE(86) cylinder heads while a later motor should have E7TE heads with a "T" in that location. But even that isn't a certainty, that same head/block combo was used in most cars up until they swapped to the modular motor in '92, and it did have a roller cam but not the same one that was used in the Mustang.. it was quite a bit smaller. With it having a car intake that is most likely to be the lo-po(150hp) 5.0 used in the Crown Vic and other passenger cars.
I have the low octane 86 5.0 roller engine. When I rebuilt it, the piston skirts had some cracks, that is when I found out they used different pistons with thinner piston rings. I went ahead and bought the older style flat top pistons with the older style rings and installed them. Had the heads redone too, but I think this engine had a one year experimental high swirl design and they do not flow that great. I did notice these 86 heads I have take a odd very long sparkplug. And it DOES NOT have the HO firing order. It has a roller cam but has the older non-HO firing order.
Also, look in the lifter valley area. Does it have pads cast in the middle? As in, is it a roller ready block? I had a 1986 302 out of a Mark VII, and it was a roller block, the lifter bores are taller and it the top of them are machined for the spiders. And it had tapped threaded holes in the middle bosses for the spider retainer. You may have a block like this, but it might have not been machined and just used the regular flat tappet camshaft setup.
Finally got around to pulling all of the efi stuff off and getting into the valley. What do you see??
I see a dry valley with the roller lifter retainers, to keep them from spinning and the roller from turning on the cam.
That is what I see too. Where is the spyder retainer that bolts into those threaded holes in the center of the valley. It holds the spyders down. It looks like this;
That is what I see too. Where is the spyder retainer that bolts into those threaded holes in the center of the valley. It holds the spyders down. It looks like this;
It's on my bench, lol. I had to remove it to see the casting.
I have the low octane 86 5.0 roller engine. When I rebuilt it, the piston skirts had some cracks, that is when I found out they used different pistons with thinner piston rings. I went ahead and bought the older style flat top pistons with the older style rings and installed them. Had the heads redone too, but I think this engine had a one year experimental high swirl design and they do not flow that great. I did notice these 86 heads I have take a odd very long sparkplug. And it DOES NOT have the HO firing order. It has a roller cam but has the older non-HO firing order.
Yep that describes the lo-po 5.0 exactly.. I suspect this is just what the OP of this thread has.
To anyone reading this thread, do not let the "lo-po" description discourage you from using this engine. It has decent power for a 302 and makes a good engine for your truck, as much as a 302 can be a truck engine. And you have the basis to upgrade since you do have a roller cam block. I put a 1968 4 barrel intake on mine with a little 600 cfm holley on it, and it ran very good.
To anyone reading this thread, do not let the "lo-po" description discourage you from using this engine. .
Yes... as long as you're not looking for HP. As equipped this motor will not make much more than 200hp or so, but the high swirl E6 heads do thier job extremely well and as a result the motor will take lots of ignition advance and make quite good torque... for a 5.0. If you do want topend power then swap on some better heads and you're off to the races... just know that the stock flattop pistons will somewhat limit your cam choices unless you're rebuilding everything... then it's as good a starting point as any factory 5.0.
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