Boomer

Don't let it happen again....
smart***

Wonder if the new car will carry the same moniker or a new code.

jsaylor

Good question. I would be willing to bet that both will be called S197's since Ford called pre and post 99 Mustangs SN95's. And thanks for creating this thread Boomer, it's nice to have all the info in one place instead of having to dig for it.

V10

Most likely depends on how extensive the changes are.

If the update is just front & rear facias and some interior updates it would most likely still be a S197.

A major rework would get a new program #.

benny02gt

I found this in the 2008 Ford Racing Performance Part (FRPP) catalog.



I wonder if this could be the rumored 5.0 for 2010

jsaylor

It might indeed have something to do with it. A siamese bore solves a lot of bore spacing issues in a hurry assuming the cooling system changes don't create a problem. The fact that a Boss moniker is attached to it is very interesting indeed.

m05fastbackGT

How is that ? being as every body panel, except for the greenhouse was updated on the 99..But yet the SN-95 model # remained the same..

Boomer

Probably not it...

Evil_Capri

You don't know!

Or do you?!

Boomer

Nope

You know me better than that....

Now..go change your avatar

UnrealFord

WoW, interesting.. That would be a sweet engine for a new Boss model..

Evil_Capri

OK.

Moosetang

More likely its a prototype that was rejected for full production, like the Cammer 5.0. Anything is possible, though.

200mphcobra

A lot better than a darton sleeved teksid block IMO. That is an interesting development. Head gasket issues would be my only concern, but otherwise, I think it could be a stop gap measure till the new engines. Saves a ton of money on retooling for larger bore centers. This would also allow for bigger valve diameters. I would give up the 50-60 lbs for one @ 400 HP.

jsaylor

The more I think about it the more I think this really could be the rumoured Mod motor based Boss 5.0L coming in a future Mustang. I was genuinely perplexed as to how Ford was going to solve the bore spacing issues with the Mod motor without actually physically lengthening the block to increase the same. A siamese bore block accomplishes everything the rumour mill says will occur and, unless cooling problems are an issue, does so in a producable package.

V10

Exactly, there wasn't much of anything done to the platform on the 99 update. Besides the PI heads. the changes were not much more than body panels and some suspension tweaks.

The greenhouse is the most expensive thing to change. Since we already know that the next Mustang update will have the same greenhouse I'm expecting about the same level of changes as 98-99. So it will probably still be a S-197.

V10

Remember that back before HTT left the SVT he said he wanted to do a 5.0 engine.

Given Ford's past history of dumping aborted projects on FRPP, I'd guess this was HTT's 5.0 block. I don't recall any engine stuff show up first in the FRPP catalog and later in a production car, which doesn't bode well for a 5.0 modular showing up in a new Mustang.

94mm bore x 90 mm stroke = 5.00 L displacement

94 mm bore with 100 mm bore spacing = 6m or 0.236" cylinder wall thickness between cylinders.

FRPP has siamese bore 351 blocks which also allow approx 4mm larger bore than the conventional blocks. However all those Windsor type siamese bore blocks are for race engines.

Also makes me wonder how rugged a 94mm mod block made out of CGI would be.

jsaylor

I do recall that.

I've thought much the same, but the fact that this has Boss in the name has got my attention. Rumours seem to be indicating, and rather heavily by this point, that a 5.0L V8 is on the way and that it will almost certainly be Mod motor based. I suppose Ford could simply add some deck height to the 4.6L and stroke it a bit, or looked at another way they could destroke the 5.4L and potentially shorten the deck height, but the accompnaying rumour that the approach employed to create a 5.0L Mod motor would also solve many of the problems associated with that motors small bore certainly fits here.

Yes, but while the siamese bore Windsor blocks aren't suitable for production siamese bore V8's have indeed been produced before. Olds had one once for example.

I would love to see Ford move to CGI...a true best of both worlds scenario.

Knight

for us unfimilar with siamese bore... what does that mean? apprecaite any responce on this.

Twin Turbo

Yep, reckon that's about right. The 2010 may well be a heavily reworked S197 (bodywork/engine mods) but I'm guess the next generation Falcon based cars (2013+?) will feature a new moniker as befits a new platform (can you say IRS )

GTJOHN

I don't expect a new engine in the Mustang until 2012. Ford and the media continue to talk about new 4 Bangers & GDI V6's. I think Ford will milk the 4.6L & 5.4L as long as possible. Unless a new small V8 is pushed into the F150.