Keith Craft Inc.- We service what we sell!!! Check out our Cobra engines!!! We build high performance racing engines and components for the fast pace strip racing industry as well as daily drivers who want to be FIRST!!!

FE Forums sponsored by Keith Craft Inc.


Go Back   Club Cobra > Engine Building, Tuning, and Induction > FE TALK

Welcome to Club Cobra!  The World's largest non biased Shelby Cobra related site!

  •  » Representation from nearly all Cobra/Daytona/GT40 manufacturers
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and nearly 1 million posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

MMG Superformance
Nevada Classics
Keith Craft Racing
Main Menu
Nevada Classics
Nevada Classics
MMG Superformance
Advertise at CC
Banner Ad Rates
MMG Superformance
Keith Craft Racing
Keith Craft Racing
March 2024
S M T W T F S
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            

Kirkham Motorsports

Like Tree8Likes
  • 7 Post By 767Jockey
  • 1 Post By patrickt

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1 (permalink)  
Old 07-11-2020, 04:20 PM
767Jockey's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Feb 2005
Cobra Make, Engine: Contemporary, FE, Tremec TKO 600
Posts: 1,946
Not Ranked     
Default Some details on my 520 cu. in. FE engine

Some of you commented on my other thread and in comments sent to me asked about the details on my engine. Here are some of the specs on it:

BBM cast iron FE block
BBM cylinder heads, as cast except for hand bowl blend and very minor port tweaks by Blair
RPM forged crankshaft, dimensionally prepped by Blair
Crower forged connecting rods - 6.625” length
Custom CP forged pistons - final compression ratio is about 11.5:1
Custom Total Seal rings
4.345” bore, 4.375” stroke - 520 cu. in.
At 4.35” bore, the BBM cast iron block allows for more overbore capability for future rebuilds if needed.
Rotating assembly is internally balanced
Melling oil pump modified by Blair
Canton screen windage tray
Milodon road racing oil pan
Bullet Blair Patrick custom solid roller cam - .735” lift. Other specs proprietary to Blair.
Valve size and spring type and pressure - not sure about this
Crower Enduamax bushed solid roller lifters
T&D race paired shaft rocker system
Smith Bros. pushrods
Ford Holley BC/BD 710 CFM carbs, prepared by Blair
BBM Tunnel Wedge intake, unmodified except for milling for proper fitment.
Cometic head gaskets
Mr. Gasket and Fel Pro engine gaskets
Crane electronic distributor prepped by Blair
Timing only 32 deg. total - thanks to the BBM advanced chamber
NGK BKR6E spark plugs
Valvoline VR1 SAE30 oil

As for power specs, it makes a max 744 HP at 6500 RPM. Max torque is 667 at 5400 RPM.

A few details on the car are here: After 13 years, it's alive.
jwoodard, rads42, undy and 4 others like this.

Last edited by 767Jockey; 07-11-2020 at 04:26 PM..
Reply With Quote
  #2 (permalink)  
Old 07-12-2020, 09:46 AM
MKS427's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2017
Location: Glendale, AZ
Cobra Make, Engine: FFR MkIV 427
Posts: 629
Not Ranked     
Default

Nice. Looks like you went all out.
With 11.5:1 compression, can you use pump gas? 91/93 octane, or do you need octane booster?
Mark
Reply With Quote
  #3 (permalink)  
Old 07-12-2020, 09:58 AM
767Jockey's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Feb 2005
Cobra Make, Engine: Contemporary, FE, Tremec TKO 600
Posts: 1,946
Not Ranked     
Default

93 octane seems to work fine. The aluminum heads help, as well as the chamber in the BBM heads allowing for a lower ignition timing setting. Blair seems to be very comfortable with the compression ratio.
Reply With Quote
  #4 (permalink)  
Old 07-13-2020, 06:35 AM
Dwight's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2001
Location: Florence, AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
Not Ranked     
Smile

Blair Patrick?
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
Reply With Quote
  #5 (permalink)  
Old 07-13-2020, 01:37 PM
Jerry Clayton's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2005
Location: Bartlett, Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
Not Ranked     
Default

Whats the meaning of "767 Jockey?"
Reply With Quote
  #6 (permalink)  
Old 07-13-2020, 02:06 PM
patrickt's Avatar
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,889
Not Ranked     
Default

Quote:
Originally Posted by Jerry Clayton View Post
Whats the meaning of "767 Jockey?"
Uhhhh, maybe "airline pilot?"
Reply With Quote
  #7 (permalink)  
Old 07-13-2020, 02:50 PM
767Jockey's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Feb 2005
Cobra Make, Engine: Contemporary, FE, Tremec TKO 600
Posts: 1,946
Not Ranked     
Default

Quote:
Originally Posted by Dwight View Post
Blair Patrick?
Yes, Blair Patrick built the engine.
Reply With Quote
  #8 (permalink)  
Old 07-13-2020, 02:51 PM
767Jockey's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Feb 2005
Cobra Make, Engine: Contemporary, FE, Tremec TKO 600
Posts: 1,946
Not Ranked     
Default

Quote:
Originally Posted by Jerry Clayton View Post
Whats the meaning of "767 Jockey?"
I used to fly Boeing 767's.
Reply With Quote
  #9 (permalink)  
Old 07-13-2020, 02:57 PM
patrickt's Avatar
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,889
Not Ranked     
Default

Quote:
Originally Posted by 767Jockey View Post
I used to fly Boeing 767's.
I was sure you were going to reply with What's the meaning of "Jerry Clayton?"
xb-60 likes this.
Reply With Quote
  #10 (permalink)  
Old 07-13-2020, 06:28 PM
Dwight's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2001
Location: Florence, AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
Not Ranked     
Smile

I know Blair. I've been to his shop a couple of time.

One of my buddy had him build a 428 for his 68 Mustang. It's not a 428 any more.
Hell of an engine builder!
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
Reply With Quote
  #11 (permalink)  
Old 07-13-2020, 07:10 PM
FUNFER2's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2002
Location: Eagle, Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,298
Not Ranked     
Default

Man, what a dream engine. Solid roller cam - .735” lift and high compression, how's it on the street ?

I got spanked for wanting a mechanical cam & hi compression in mine. lol
That thing must sound nasty !

Since you're having troubles posting a video, can you put it on YouTube ?
Gotta hear that beast !
__________________
Regards,
Kevin

Last edited by FUNFER2; 07-13-2020 at 07:13 PM..
Reply With Quote
  #12 (permalink)  
Old 07-13-2020, 10:58 PM
CC Member
Visit my Photo Gallery

 
Join Date: May 2006
Location: St. Louisville, Oh
Cobra Make, Engine: A&C 67 427 cobra SB
Posts: 2,444
Not Ranked     
Default

It is an awesome engine for sure. I respect it. So don't get me wrong, when I say it s not a practical choice to drive on the street in such a light car. Depending on what you want to do with the car, it will either be the perfect engine or too much to take on a leisurely drive and enjoy.

In any event, it definitely wins, hands down, on bragging rights. Be careful with it and enjoy.

I understand Pilots have skills and large balls, but be aware that the wheel base is much shorter than a 767. It is capable of swapping ends faster than any jet, so keep it pointed straight.
Reply With Quote
  #13 (permalink)  
Old 07-13-2020, 11:16 PM
767Jockey's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Feb 2005
Cobra Make, Engine: Contemporary, FE, Tremec TKO 600
Posts: 1,946
Not Ranked     
Default

Quote:
Originally Posted by olddog View Post
It is an awesome engine for sure. I respect it. So don't get me wrong, when I say it s not a practical choice to drive on the street in such a light car. Depending on what you want to do with the car, it will either be the perfect engine or too much to take on a leisurely drive and enjoy.

In any event, it definitely wins, hands down, on bragging rights. Be careful with it and enjoy.

I understand Pilots have skills and large balls, but be aware that the wheel base is much shorter than a 767. It is capable of swapping ends faster than any jet, so keep it pointed straight.
Yup, I get all that. As far as pilot skills and balls go, the whole idea there is to have and use your skills in such a way that you never need to display how big your balls are!

As for the car/engine combo, once everything is dialed in, which it isn't yet, it'll be fine. That's the primary reason for the very large displacement. The engine has crazy power on tap, but by having 520 cu in of displacement the engine doesn't have to be on the razors edge to develop it. It's not a docile smooth idler, and it does need a few more RPM's than a stock engine around town, but it's certainly not difficult or unpleasant to drive. If over time it turns out to be less pleasant to drive than I had hoped, it's a Saturday's work to slide a more docile cam into it. Hell, that might even drop the power bellow 700 HP, which should still be enough. All joking aside, I think it'll be OK, and if not that's easily fixable.

I'm well aware of the 90" wheelbase swapping ends in a blink of an eye, so I'll get into the throttle slowly as I learn the car.
Reply With Quote
  #14 (permalink)  
Old 07-13-2020, 11:24 PM
767Jockey's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Feb 2005
Cobra Make, Engine: Contemporary, FE, Tremec TKO 600
Posts: 1,946
Not Ranked     
Default

Quote:
Originally Posted by FUNFER2 View Post
Man, what a dream engine. Solid roller cam - .735” lift and high compression, how's it on the street ?

I got spanked for wanting a mechanical cam & hi compression in mine. lol
That thing must sound nasty !

Since you're having troubles posting a video, can you put it on YouTube ?
Gotta hear that beast !
It's got a really raspy roar to it when you get into it. The cam sounds really big on paper (and it's certainly not small) but the 520" displacement swallows it up pretty well. It's definitely got a heck of a lope to it at idle, but in the small bit that I have driven it, it doesn't seem bad at all around the neighborhood streets. Today it was 102 degrees outside, and I drove it for about 15 minutes around the local streets in the neighborhood. The water temp never got above 85 degrees C, which I believe is about 185 F or so. Not too bad.

Blair and I discussed the pros and cons of solid vs. hydraulic rollers. In the end, with the strength of the premium parts in the bottom end, I knew that I would be tempted to spin this thing up to and perhaps a bit beyond where hydraulic rollers are happy. By going with the bushed Crower solid roller lifters, it helps ease the concern about possible durability issues with solid rollers on the street.

As for the video, I don't do YouTube or any of that stuff, so I guess that'll have to wait.

Last edited by 767Jockey; 07-13-2020 at 11:33 PM..
Reply With Quote
  #15 (permalink)  
Old 07-13-2020, 11:26 PM
767Jockey's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Feb 2005
Cobra Make, Engine: Contemporary, FE, Tremec TKO 600
Posts: 1,946
Not Ranked     
Default

Quote:
Originally Posted by Dwight View Post
I know Blair. I've been to his shop a couple of time.

One of my buddy had him build a 428 for his 68 Mustang. It's not a 428 any more.
Hell of an engine builder!
I agree, Blair is one hell of an engine builder. To have the success that he's had in classes such as Super Stock, you really need to be on top of your game. I have tremendous respect for Blair and his abilities. The FE community is very fortunate to have Blair, and many other fine builders like Brent, Craft, Kuntz, and so any others.
Reply With Quote
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 07:00 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, 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: CC Policy