|
Even modified factory HP heads are not going to yield huge CFM numbers so it's probably a smaller ci engine. As said before, probably a spec racer. 331 or a 347 would be my guess.
For an all out SBF "REAL" race motor there are heads out there with ports that those factory heads would fit in ... well ... almost. |
292 ci
443 hp |
I agree on capacity being 289ci
It will be a 'revver' Webers 440hp Cheers, Glen |
I think a long rod 289 plus that it takes to clean up the block. Spin it hard and the numbers should go up. If they could get 390 hp in the 60's and keep them together. With todays cams and todays porting I think 550 hp.
Mark |
From the information provided, we have a high budget 289 based race engine with 1965 HP cast iron FoMoCo heads, flat top pistons, long rods, and Webers. Assuming that it is limited to vintage specs regarding displacement, I would guess the following:
292 cu in displacement 485 HP John |
The heads are December 64 cast standard 289 heads, not hipo heads (no cast spring pockets, not 2 dots over the cast 289). They look to have been tapped for screw-in studs, but don't appear to have been ported on the exhaust side, which is the first place you want to enhance flow. Unless there's more to these heads than what I'm seeing, I don't see them making a lot of power, which makes the Weber set-up odd since this is apparently a well thought out power plant. Maybe a FIA legal motor for vintage racing across the pond.
CI = 289 HP = 345 |
A couple of notes on that....
1. Don't always assume that since a port doesn't *look* to have been modified....that it's not. ;) 2. I didn't say that the heads and intake have been worked yet. As a matter of fact, the only work that has been done so far is the installation of bronze guides and the rocker stud holes have been tapped. |
Quote:
|
Vintage cobra 289 race engine perhaps... with low rotational weight, for super speedy acceleration and high revving engine - Say maybe 7200 rpm. On your dyno 498 hp at say 6400 rpm.
|
Starting to agree with the guys here on 289-302 level with all the good stuff.
Just please don't paint it orange!;) |
1. 289 C.I.
2. 505 H.P. I would never spend 25K on a stock cast Iron head engine build unless I was forced by class rules. So I'm thinking F.I.A. Webers mean quick throttle response... I'm guessing 1.9 rod ratio (better exhaust evacuation) will need tuned exhaust. Cam selection will be tricky. This will be a fun thread. I'm guessing race Cobra. |
I'm gonna shut up & watch now, I think I have just clicked on where this motors going...:)
|
I am thinking north of 8000. In the 70's I had a 289 falcon 4 speed 489 rear gears on the street that I turned 8000+ daily.
Mark |
Quote:
Cheers, Glen |
Quote:
1. Factory rocker arms...cryogenically treated and REM polished. 2. Tool steel lifters. 3. Nitrided flat tappet camshaft. 4. LOTS of block preparation. 5. LOTS of head/intake work and over $1200 in just valves alone. 6. Forged crankshaft. 7. Coated bearings. 8. Of course, Weber setups are not cheap. :) I don't see anything wrong with allowing guessers to go back and edit their initial guesses, but I will probably implicate a deadline later on down the road. |
It's your game, but I suggest any edits be done by adding the new guess with the date. That way you can use the earliest date as a tie breaker if needed.
|
Not as knowledgeable as many others in this post, but based upon what I have been seeing so far I am going with an FIA build. It is a 289 and will be pushing 550 HP with about a 7500 rpm redline.
|
Quote:
|
Looks like all the good stuff.... except for maybe the prepped stock rockers.(dictated by rules).
Looks to be a high revving motor w/light parts. A motor that will need a lot of porting (leaning toward more velocity than c.f.m.) Deep eyebrows on top of the pistons (high lift cam) Lots of block work.... Now that sounds like a clue. Something more than the usual? |
Definitely not high lift....
The block work really wasn't a clue, but just listing the things that contributed to a higher engine cost. Aftermarket main caps, lifter bore bushings, little bit of this, little bit of that..... |
| All times are GMT -7. The time now is 11:19 PM. |
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: