Zombie 133 5709

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Richard Calver
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Post by Richard Calver »

That decodes as

H series 440
H series Chrysler 10321
January 7 High Performance

There are books about this stuff.
JOC member 3551
Canberra, Oz
4¼ Litre H4/9103
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americanjohn
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Re: Zombie 133 5709

Post by americanjohn »

Hi Fellas, back with a few updates. Although I haven’t been posting due to several life changes, happy to report there has been slow and steady progress happening in the background.

Engine

Had the 440 rebuilt and uprated – expecting somewhere between 450-500 HP now.
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americanjohn
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Re: Zombie 133 5709

Post by americanjohn »

Also had the 727 rebuilt and uprated to deal with the additional power. The guy did an excellent job and included some neat modifications to allow changes to shift points and forces in place by merely dropping the pan. Kevlar clutches and a lot of performance parts included. I was thinking about swapping in an overdrive 518 from Phoenix like Mark I did, but decided to postpone this upgrade. I'm hoping that in the not to distant future there will be kits available to put a ZF 8HP90 or Ford / GM 10R80 behind vintage iron.

Transmission
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americanjohn
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Re: Zombie 133 5709

Post by americanjohn »

Last major milestone was the interior - had a full retrim in brown. The original leather was rougher than a night in jail so I bought new just by eyeing it up. Got a little lucky as I discovered later when the retrimmer pulled off the doorhandles, revealing the original, unfaded color.

Interior
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grottenolm
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Re: Zombie 133 5709

Post by grottenolm »

Looking good - I love the brown interior.
Interceptor MK2
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Jorrocks
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Re: Zombie 133 5709

Post by Jorrocks »

americanjohn wrote:Had the 440 rebuilt and uprated – expecting somewhere between 450-500 HP now.
Hi John,
Can you pass on some details of your build? I'm about to launch into a rebuild so interested in what parts, cam specs etc. that you chose.
Many thanks!
Eric.
1972 Interceptor MkIII (128/4886)
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americanjohn
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Re: Zombie 133 5709

Post by americanjohn »

Jorrocks wrote:
americanjohn wrote:Had the 440 rebuilt and uprated – expecting somewhere between 450-500 HP now.
Hi John,
Can you pass on some details of your build? I'm about to launch into a rebuild so interested in what parts, cam specs etc. that you chose.
Many thanks!
Eric.

Hi Eric,

I went with a steel 4.15” crank and rods from Eagle, which yields around 490 ci. I had planned to keep the standard displacement, but the shop talked me into the first stage stroker kit because it costs the same as standard stoke and it fit my rough requirements. Still second guessing that. I don’t want to run above 5,000 RPM and didn’t want a lumpy, McDonalds drive-thru idle. My goal was to have more performance without sacrificing (too much) general drivability. CP Pistons, forged aluminum, with Carrillo rings. Compression calculated to be 10.85:1. All this as a balanced assembly. The heads are Scott Brown aluminum, slightly ported and polished. Cam is a flat tappet custom grind from him as well, lower lift but a longer duration. I had to provide the vehicle weight, transmission and rear differential specs. Holley Street Dominator intake because it has a wide performance range and low profile (think it was only .5” taller than stock so I hope the hood / bonnet closes).

I should mention that I also looked at complete build kits for Mopar big blocks. They offer a lot value and make it easier because all the components are integrated (or supposed to be). The main components were fine, but I wanted some specific secondary components (bearings, rockers, etc), the Dominator and the milder cam so I went the bespoke route. I didn’t really investigate the option of swapping out some of the components on of the higher-end, quality kits.

Regards, John
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americanjohn
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Re: Zombie 133 5709

Post by americanjohn »

Here's something you don't see very often over here. Rented out a space to a shop so they could temporarily store a car prior to painting and unexpectedly this JH showed up. Took some rough measurements - the 440 might just fit, but would definitely require a hood scoop.
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Joerg
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Re: Zombie 133 5709

Post by Joerg »

That’s why a JH is normally converted with a Rover V8 ( apart from the fact that the engine is significant lighter ).
I own some of the odd Jensen 8)
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Jorrocks
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Re: Zombie 133 5709

Post by Jorrocks »

John,
Thanks for your reply re. your engine build. Sounds very much like what I’m looking for, I am also going for the 493 Eagle kit but with SRP or Mahle 4032 forged pistons (by the way, do you happen to know what piston / bore clearance you’re running with the CP pistons?), Crane HR222 hydraulic roller cam and Trickflow 240 heads.
Eric.
1972 Interceptor MkIII (128/4886)
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americanjohn
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Re: Zombie 133 5709

Post by americanjohn »

Jorrocks wrote:John,
Thanks for your reply re. your engine build. Sounds very much like what I’m looking for, I am also going for the 493 Eagle kit but with SRP or Mahle 4032 forged pistons (by the way, do you happen to know what piston / bore clearance you’re running with the CP pistons?), Crane HR222 hydraulic roller cam and Trickflow 240 heads.
Eric.
Eric, the specs on the CP pistons are 0.0045“ clearance for street use. I also like Mahle, had them in a 351C. Check their specs, probably similar as also forged aluminum. I wanted to go with a roller as well, but the shop advised tappet so I went that route. The HR222 is interesting - lift is very similar to mine, but the timing and duration are very different. I like the usage comment „mild bracket racing“. Like to hear how that works out for you.
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americanjohn
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Re: Zombie 133 5709

Post by americanjohn »

Differential

Working on the last major mechanical subproject and stripped down the rear axle. The gearset and posi unit look good, but while they’re out I’ll have a specialist go through them. I had a Plymouth with a Dana 44 similar to the Salisbury unit - put it back in without a rebuild and always had to put up with a faint B Minor whine at highway speeds.

I’m also considering an aftermarket diff cover to provide more oil capacity. Anyone go down this path? I’m thinking a Dana 44 with 10 bolt pattern is a direct bolt on.

I like this one as the filler plug is at the right level - just need to see if the suspension brackets that bolt to the diff housing will have enough clearance. https://www.yourcovers.com/diffcover_5055.php" onclick="window.open(this.href);return false;
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Jorrocks
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Re: Zombie 133 5709

Post by Jorrocks »

I was looking at one of these:

https://www.bighealey.co.uk/axle-5/comp ... -jcrax101c" onclick="window.open(this.href);return false;

but also not sure of its compatibility with the Jensen ancillaries! Looks properly gucci tho’ !!
1972 Interceptor MkIII (128/4886)
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americanjohn
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Re: Zombie 133 5709

Post by americanjohn »

Definitely Gucci, but a little too industrial for me - not sure what to do with all those extra holes and widgets. At least the drain plug is in the right place! I think the ancillaries will work on both covers, but the mechanical emergency brake linkage runs right past the cover. Can’t judge the clearance from my pics and now everything is in pieces. BTW Looking at that setup I hope the main system never fails.
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Joerg
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Re: Zombie 133 5709

Post by Joerg »

The Denis Welch Jaguar cover will fit any Jensen CV8 and Interceptor, SP or FF differential.
The two additonal holes are for the two oil pipes flanges from diff to diff-cooler (many race cars have these kind of device - but not needed under normal driving conditions, and you will need an additional electrical oil pump for the diff-cooler )
I own some of the odd Jensen 8)
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