123/4125 Engine upgrade/rebuild

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Brewskie
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Joined: Mon Aug 03, 2015 11:52 am
Location: Sydney

123/4125 Engine upgrade/rebuild

Post by Brewskie »

Its been a while since I posted my twin turbo 123/4125 on here, the time has come to give the engine bay a tidy up and the engine/transmission an upgrade. I have decided to remove the twin turbo setup mainly due to the car now being registered as an historic vehicle and going back to a 440 stroked to 500ci this will be backed up with a GM 4l65 highly modified transmission. The engine will be converted to fuel injection and the distributor replaced with 8 direct fire coils I will keep you up to date with progress I have attached some photos


https://www.flickr.com/photos/159498516 ... res/gy7G5P" onclick="window.open(this.href);return false;
Daniel Brunner
Jensen Interceptor Mk2 123/4125
cannonball
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Re: 123/4125 Engine upgrade/rebuild

Post by cannonball »

Brewskie wrote:Its been a while since I posted my twin turbo 123/4125 on here, the time has come to give the engine bay a tidy up and the engine/transmission an upgrade. I have decided to remove the twin turbo setup mainly due to the car now being registered as an historic vehicle and going back to a 440 stroked to 500ci this will be backed up with a GM 4l65 highly modified transmission. The engine will be converted to fuel injection and the distributor replaced with 8 direct fire coils I will keep you up to date with progress I have attached some photos


https://www.flickr.com/photos/159498516 ... res/gy7G5P" onclick="window.open(this.href);return false;
what do you think to the added girdle ??? easy fit etc etc,
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Brewskie
Posts: 44
Joined: Mon Aug 03, 2015 11:52 am
Location: Sydney

Re: 123/4125 Engine upgrade/rebuild

Post by Brewskie »

Yes the girdle and main caps came in a kit, block had to be tunnel bored and then the caps and pan rails machined flat but other than that bolted straight in
Daniel Brunner
Jensen Interceptor Mk2 123/4125
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Jorrocks
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Location: Buckingham

Re: 123/4125 Engine upgrade/rebuild

Post by Jorrocks »

Hi Daniel,
Is that a BCR girdle, the 1/2” thick one? Looks like it may be. Do you anticipate any pan clearance problems with the Interceptor crossmember as I know it’s a bit tight even without a girdle fitted!
Cheers,
Eric.
1972 Interceptor MkIII (128/4886)
Brewskie
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Location: Sydney

Re: 123/4125 Engine upgrade/rebuild

Post by Brewskie »

Gday, the gridle would have fitted just with no modifications, I decided to notch the front cross member so I could easily remove the sump if need be without having to raise the engine. The girdle is a BCR one with their billet main caps and rear seal housing, very well machine was very happy with the quality
Daniel Brunner
Jensen Interceptor Mk2 123/4125
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Jorrocks
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Re: 123/4125 Engine upgrade/rebuild

Post by Jorrocks »

The girdle looks to be better design than the Hughes one I was looking at. Any chance of a picture or two of the notched crossmember Daniel?
1972 Interceptor MkIII (128/4886)
Brewskie
Posts: 44
Joined: Mon Aug 03, 2015 11:52 am
Location: Sydney

Re: 123/4125 Engine upgrade/rebuild

Post by Brewskie »

Yes no problem at all I will take some tonight for you
Daniel Brunner
Jensen Interceptor Mk2 123/4125
Brewskie
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Re: 123/4125 Engine upgrade/rebuild

Post by Brewskie »

Here are a couple of links to the engine build with the girdle

https://www.facebook.com/daniel.brunner ... 2692566163" onclick="window.open(this.href);return false;
https://www.facebook.com/daniel.brunner ... 7309864368" onclick="window.open(this.href);return false;
https://www.facebook.com/daniel.brunner ... 4248629675" onclick="window.open(this.href);return false;
https://www.facebook.com/daniel.brunner ... 7682745332" onclick="window.open(this.href);return false;
Daniel Brunner
Jensen Interceptor Mk2 123/4125
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Grant
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Re: 123/4125 Engine upgrade/rebuild

Post by Grant »

HahahahaImage
"This looks expensive husband"Image.. if it makes you happy Daniel that should make her happy so therefore it is so cheap tell herImage...Image
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Brewskie
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Location: Sydney

Re: 123/4125 Engine upgrade/rebuild

Post by Brewskie »

If only she knew what it has really cost :D
Daniel Brunner
Jensen Interceptor Mk2 123/4125
Brewskie
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Re: 123/4125 Engine upgrade/rebuild

Post by Brewskie »

Heres a couple of photos of the cross member 25mm x 25mm was sectioned out
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Daniel Brunner
Jensen Interceptor Mk2 123/4125
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Jorrocks
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Re: 123/4125 Engine upgrade/rebuild

Post by Jorrocks »

Daniel, thanks very much for those photos!
1972 Interceptor MkIII (128/4886)
Brewskie
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Re: 123/4125 Engine upgrade/rebuild

Post by Brewskie »

Some more progress
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20180331_235032.jpg (184 KiB) Viewed 5613 times
Daniel Brunner
Jensen Interceptor Mk2 123/4125
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hemi
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Re: 123/4125 Engine upgrade/rebuild

Post by hemi »

Hi Daniel

Great set up. Have you changed the diff and brakes?

Matt
Interceptor II, 123/3936
Brewskie
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Re: 123/4125 Engine upgrade/rebuild

Post by Brewskie »

Upgraded the front brakes and in the process of upgrading the rear and getting a diff made for it
Daniel Brunner
Jensen Interceptor Mk2 123/4125
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