Club Cobra Keith Craft Racing  

Go Back   Club Cobra > Engine Building, Tuning, and Induction > Small Block Talk

MMG Superformance
Nevada Classics
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
MMG Superformance
Advertise at CC
Banner Ad Rates
MMG Superformance
Keith Craft Racing
Keith Craft Racing
April 2025
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      

Kirkham Motorsports

Like Tree15Likes

 
 
LinkBack Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #1 (permalink)  
Old 02-11-2022, 08:39 AM
jbmatth's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2011
Location: Ponca City, OK
Cobra Make, Engine: B&B 351w
Posts: 86
Not Ranked     
Default Godzilla 7.3L Swapped Cobra

Well it has been a very long time since I've posted in here but thought I'd share my Godzilla 7.3L swapped Cobra. A little background, I've owned this car since I was 24 for almost 12 years now. It is a B&B that was built in 2001, it had a pretty sad 351w and T-5 trans. Here is a photo to get some attention before a lot of writing:


Through the years I've upgraded the brakes to 11" disks all the way around, QA1 coilovers, tubular control arms, 9" axle with 3.70:1 gears, re-wired the engine and dash area, replaced the dash and seat vinyl, replaced the trans 2 times due to breaking 3rd once and 2nd once.

I tried to breath a little more power in the engine by getting it rebuild 3 years ago and after 2 failed attempts the 3rd time was a charm but still only dyno'd 296 hp at the flywheel. I didn't want to spend too much on the rebuilds so just new bearings, seal, gaskets, and a bigger cam with new lifters. First engine only ran 20 minutes total before realizing the crank bearings were .010" too big. Yep I didn't even use plasti-gauge, shame on me. Took it to a small local shop, it lasted 700 miles when I whipped out a cam lobe and bent and broke a pushrod. The third rebuild was by a well known shop and switched to a roller cam but being cheap I kept the iron heads and just had them ported.

No, 296 hp wasn't going to cut it and the Godzilla had just been announced. I waited for a while until more aftermarket support was available and didn't have to do as much development on my own. Then early last year I found out Mast Motorsports was offering a mildly built Godzilla with controls and wiring for at the time $14k with an estimated 500-550 hp. It had forged rods and pistons, a few cam offerings, CNC heads, and was ready to install. I put my order in with them in early April of '21, and the wait began, and continued, and continued and eventually I got to pick out the CAM and saw some dyno numbers. I was stoked by the results on pump gas no less, what do ya'll think:


I made the trip down and picked it up, they have a very cool facility and I got to see some very cool stuff. Got it home and unloaded where I'd already pulled the old 351w and T-5, it was ready for the new engine and TKX full kit I'd picked up from Silversport Trans:


Here is a comparison of the T-5 to the TKX:


I got started test fitting the new engine and building engine mounts:


More to come,
JB
Attached Images
     
__________________
I believe that any man's finest hour, his greatest fulfillment of all he holds dear, is the moment when he has worked his heart out in a good cause and lies exhausted on the field of battle - victorious.
Reply With Quote
 


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 10:56 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: CC Policy
Links monetized by VigLink