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Service Block
#1

May not be too relevant, but wanted to mention it. Bought the '90 Mustang from an elderly lady under care of her family. She was very happy to see it go to a loving home . Didn't get a lot of history on it, didn't press the issue. She mentioned a major engine problem and she was out of a car for a couple weeks. 

Upon doing the swap, we found provisions only a turbo block would have. 

Assuming she was recently widowed upon buying the car, maybe she didn't change oil ?

Either way, happy to have the block for a future build.

There is a guy out there on many Ford specific sites that collects buck tags/vin plates. Forget his name (embarrassing) because the guy seems to know his stuff.

RF-E3ZE-6015-DC is the casting # on my block. Apparently the RF prefix indicates a replacement long block. Can not verify the info. Welcome any additional information on this.
Mike L

89 LX 5.0, 5spd ragtop, leather, 55k survivor. My bride of 27 years.

1990 LX hatch 2.3 auto. Swapped to T5. Dormant 5 years. Running turbo swap now.

Owned multiple 4, 6 & 8 Fox Mustang/Capris. Logged over a million miles in my SOHC 2.3/2.5 Ranger trucks.

Lima Lifer !!!
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#2

RF just indicates “revised” or something to that effect.

When the turbo program ended, the blocks was used in production NA cars with the oil drain (both cast in and tapped). I saw 89’s like that, can’t believe it went into the 90’s.

For a while (an eon ago) there was an eBay seller that had stacks of new blocks in crates. They was in a warehouse that had rats so some of the blocks came with rust from urine.

Usually a service engine will have a little tag on it indicating that versus any casting number (as the service engines was built from production parts).

Here is my new to me tall deck block with a RF casting number, lol …

https://photos.app.goo.gl/VmtziTwG9LPiTLtC9
84 Capri RS Turbo
1/8th 6.29@110, 1/4 - 9.87@137
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#3

Appreciate the info Bob. Need to get my photo sharing figured out for posting. Same exact part number, except mine shows 89 E 19 after the long Ford number (probably date casted) Brasil is not stamped in mine and that E7S E-BA at the block drain is machined off on mine.

Just as well, good to have a block with provisions already there. I know you can tap the pan for the turbo drain, but prefer the factory provisions in the block without machining/drilling it.

Just based on the Ford models in 1989, the T-bird was a redesign, independent rear, supercharged V6. Really nice car.

Merkur was the only carryover from 1988 - '89 to still use a Lima turbo engine. The plug was pulled on XR4TI and the Merkur Scorpio sedan in early 1989. Apparently knowing 1990 US safety standards that would have to be met (bag of air on the driver's side).

The Merkur's were assembled by hand along a line at the Karmann plant in Germany. Parts were shipped from all over to produce them at high cost.

All said, leads me to think many blocks intended for use in the turbo XR4 that were never produced were shipped backed to other assembly plants actively producing the Mustang and Ranger in the early '90s.

Off topic lounge, so chime in with your knowledge ! Not too relevant, but interesting to me. Just a follower of a pretty solid 2.0 in 1970 and owning the last 2.5 in a brand new Ranger in mid 2001. Heard the motors stayed in service on fork lift applications many years after...
Mike L

89 LX 5.0, 5spd ragtop, leather, 55k survivor. My bride of 27 years.

1990 LX hatch 2.3 auto. Swapped to T5. Dormant 5 years. Running turbo swap now.

Owned multiple 4, 6 & 8 Fox Mustang/Capris. Logged over a million miles in my SOHC 2.3/2.5 Ranger trucks.

Lima Lifer !!!
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