4V block identification?

TurboLs1 · Jul 25, 2009

Hey all, recently bought a 1996 Mustang Cobra with a 4V swap. The previous owner told me it has an engine out of a FWD Lincoln Continental with a Cobra intake. It has a 1/4" adaptor plate between the engine and trans. I am trying to identify which heads and block I have. I pulled the following part number off the heads, RFYR3E6CO64AB. I pulled this number, 11690012, off of the block on the drivers side rear just above the oilpan. I will also attach some pics. Any help identifying the block and heads (i.e. year and plant of manufacture) would be greatly appreciated. Thanks in advance for any help!

Adaptor plate between engine and trans

94GTHO · Jul 26, 2009

very nice setup. Stock internals?

TurboLs1 · Jul 26, 2009

No, it has forged pistons and rods. I am concerned and believe that it has a cast crank and a WAP block. If this is the case, I dont know if it will handle what I have planned for future mods.

billfisher · Jul 26, 2009

well u are running a similar setup to me. the crank can usually handle near 700hp. i will not push this one past 600.

of the block is a conti like it appears, its the same block but drilled for FWD mounts and a few other small differences. nothing wring with it. it can take it. the crank cant. if your goals are higher than 700id change the crank. it easy to go past the number with a b headed 4v.

billfisher · Jul 26, 2009

hold on the looks like an iron block. is it an early 2v setup for a t5?hmmmm

Gearbanger 101 · Jul 26, 2009

billfisher said:
hold on the looks like an iron block. is it an early 2v setup for a t5?hmmmm

All 4.6L 4V blocks with the exception of the one used on the '03-'04 Cobra were made of aluminum. The Continental, like the Cobra and Mark VIII also utilizes a Teksid block.

TurboLs1 · Jul 26, 2009

Thanks for the replies all.

billfisher, are you saying it can handle roughly 700 hp at the flywheel or at the rear wheels? Also, how do I know which heads I have?

Gearbanger, I have been told by some that it is a teksid and others tell me it is a WAP block...how could I verify if it is one or the other? The guy that built the engine said it is a '99, but the previous owner thought it was an '01?

Gearbanger 101 · Jul 26, 2009

TurboLs1 said:
Thanks for the replies all.

billfisher, are you saying it can handle roughly 700 hp at the flywheel or at the rear wheels? Also, how do I know which heads I have?

Gearbanger, I have been told by some that it is a teksid and others tell me it is a WAP block...how could I verify if it is one or the other? The guy that built the engine said it is a '99, but the previous owner thought it was an '01?

The WAP block wasn't released until 2001.

A bit of FYI Parts Interchange

the 4.6 aluminum blocks manufactured from 1993-1998 and some 1999's were manufactured in Italy by Teksid. these were a very expensive block for Ford to have made and are probably one of the most durable blocks produced for the 4.6. these blocks are very desirable among racers. these blocks can be used for any 4.6 engine build with any of the 2valve, 3valve or 4valve heads including Cobra R heads.

the strongest Teksid block produced of that vintage was the front wheel drive block in the 4.6 Lincoln Continental due it's added ribbing in the sides for it's East/West fitment in the FWD Continental. motor mounts become difficult with that block but the added strength makes up for it!

most of the aluminum and cast iron blocks can all be interchanged for whatever application is needed. special attention needs to be given to Windsor iron blocks which have a big "W" cast in the block. while some say it's a stronger block, some problems can occur when installing the timing cover. it's possible not all bolts will line up on the Windsor blocks. (usually not a huge problem)

The newer aluminum blocks can be used in an earlier applications by simply drilling out and re-tapping the knock sensor holes in the valley from 5/16" out to 3/8". basically a newer 2003 block can be used in a 1996 Cobra since the early Teksid blocks are harder to find. in fact, Ford discontinued the service short block for the 1996-98 Cobras due to the expense of the Teksid Italian block. the 1999/01 Cobra short block can be used as a replacement by drilling out the knock sensor holes as described above.

TurboLs1 · Jul 26, 2009

Thanks for the info Gearbanger. After reading that, I am led to believe I at least have the newer C heads because I have the newer style intake manifold. This looks like a Mach1 intake, it doesnt have the Cobra emblem engraved. Am I correct?

Gearbanger 101 · Jul 26, 2009

Looks like its probably the Marauder manifold.

Which is essentially the same as the '99/'01 Cobra, '03-'04 Mach 1 and '03-'06 Lincoln Aviator.

billfisher · Jul 27, 2009

i know gear. my teksid has no rust on it.

slayr281 · Jul 27, 2009

I'm pretty certain that intake is the Mach 1.

I know for fact that it's not the Marauder, as it exits to the driver's side. The Aviator intakes exit on the passenger side, but the intake looks like it has these valve cover type humps and a valley on it.

Yeah, I'd guess that you have an engine with C heads as opposed to B heads which have slightly different intake selections, pretty much limited to 96-98 Cobras and 93-97 Lincoln Mark 8's.

edit: Seeing if I can track down exactly what that head number is for you.

edit: Interesting. Often casting numbers don't exactly align up with parts, and YR3E is used for the 2000 Mustangs. While they didn't produce any 2000 Cobras aside from the Cobra R, I do know that Ford Racing was selling the 2000 Cobra motors along with the transmission for like 5999 as replacement motors. So that is a C head, and just like the 99/01 Cobra heads.

TurboLs1 · Jul 27, 2009

Does anyone have a pic of the drivers side of a WAP and or teksid block? I have a good pic of the drivers side of my block and would like to compare. Thanks.

billfisher · Jul 27, 2009

and im guessing its an early iron block.

billfisher · Jul 27, 2009

aluminum dont rust. and it looks nothing like my teksid.

slayr281 · Jul 27, 2009

Yeah, looks nothing like the one from my 98 Cobra too.

With that casting number from a 2000 Mustang, that block could be from a GT and who knows what you have inside.

TurboLs1 · Jul 27, 2009

The block is from a front wheel drive Lincoln Continental which is why it has the 1/4" adaptor plate between the engine and transmission. The owner said he thought it was a 2001 Lincoln engine, but here is the email from the shop that built the engine.

Your list of parts

Base engine is 1999 4v
we replaced some parts internally

Manley H-beams with ARP bolts
Manley 17CC spherically dished pistons
mahley ring pack
Stock bearings and crank.
MMR Cryo treated Oil pump.

Fuel system has been updated with
ford racing 42lb an hr injectors (Green tops)
ford racing L-MAF with DiablSport MAF-ia
Walbro Gss 340 or Gss 342 ( 255LPH @ 80 psi )

TurboLs1 · Jul 27, 2009

Thanks for the head info Slayr!

Gearbanger 101 · Jul 27, 2009

billfisher said:
aluminum dont rust. and it looks nothing like my teksid.

There isn't any rust on that block in his pictures either. A little discoloration from the heat cycling and oil seepage, but no rust to speak of.

I don’t know how you can’t clearly see that its made of Aluminum. Is your computer monitor on its way out or something?

billfisher said:
billfisher said:

aluminum dont rust. and it looks nothing like my teksid.

Click to expand...

slayr281 said:

Yeah, looks nothing like the one from my 98 Cobra too.

Click to expand...

Read over my post above. It states clearly why it doesn't look like the other Teksid blocks.

the strongest Teksid block produced of that vintage was the front wheel drive block in the 4.6 Lincoln Continental due it's added ribbing in the sides for it's East/West fitment in the FWD Continental. motor mounts become difficult with that block but the added strength makes up for it!

98COBRA281 · Jul 27, 2009

it looks aluninum to me

just too end this, see is a magnet sticks to it, if it does, its iron.......

4V block identification?

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