69 Convertible Project by HRTZ65

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Author Topic: 69 Convertible Project by HRTZ65  (Read 9335 times)

Offline HRTZ65

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Re: 69 Convertible Project by HRTZ65
« Reply #50 on: October 18, 2019, 06:20:28 PM »
Body repairs coming along.









Started the work on the engine rebuild. Step 1 stripping it down ready to send to machine shop.







Machine shop feedback not great. After cleaning in the tank and inspecting the block, this engine is too far gone.

I do have a 2nd block sitting here so have sent this off to see if it can be used instead. Fingers crossed otherwise will need to think about Plan B.

Will let you know how i go next week.

Online Reborn67

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Re: 69 Convertible Project by HRTZ65
« Reply #51 on: October 18, 2019, 06:38:38 PM »
 Curious?  When you say the engine is too far gone, you mean the block or engine as a whole?  If it was the block, was it cracked, rusted out or just too worn in the cylinders,  Doing a rebuild myself and all i kept was the block, replaced everything else, even the pan..,

Offline HRTZ65

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Re: 69 Convertible Project by HRTZ65
« Reply #52 on: October 20, 2019, 10:29:19 AM »
Thanks for the contribution reborn67

The engine block already had 40 thou over pistons and the cylinder walls would need another bore. The other 289 block i have is in better nick. i'm no engine expert so asking lots of questions and learning as i go.



 

Offline HRTZ65

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Re: 69 Convertible Project by HRTZ65
« Reply #53 on: November 01, 2019, 02:20:33 PM »
Been a busy week on the 69 convertible project.

AOD - after lengthy discussions with people more experienced in 60 & 70 muscle cars than I and arguing over the pros and cons of the AOD I've decided to continue on this path. I was then introduced to a transmission yoda who my contacts have used for many years and highly recommended. He has an AOD in his shop that he will completely rebuild with upgraded value bodies and other goodies to make a strong solid shifting AOD for my application.

Diff - Now that the transmission is sorted onto the diff. I'm going with 3.55 gears with true track centre. Its an 8 inch diff that came as additional parts when i bought the car. It will take some work getting it back to "as new" condition. Issues found bent axles, and collapsed spring mount. Both can be fixed. A drainage plug will be machined into the casing for improved serviceability and other upgraded parts to improve its reliability.

Engine - The machine shop has been too busy to assess the other block. They should get to it next week.

Brakes? Still can't make up my mind. I want 4 wheel disc brakes with nice red calipers. Looks is just as important as performance. I think it is down to Baer S4 or Wilwood. There are so many wilwood options its hard to work out which ones to choose. It also looks like all the suppliers in Australia don't have red caliper stock in Australia. I do like the Baer brakes but they are quite a bit more expensive.

Body update.The original car had terrible gaps between boot lid and rear quarters. If the gaps was set right for the boot lid across the panel on the back seat end then the left side would touch the quarter panel and the right side you could stick your finger through. With a little caressing the body shop got these results without unpicking the rear quarters.







You can also see that body work to flatten rear quarters is underway.

i'm really pleased with the boot fitment


Offline Jason67

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Re: 69 Convertible Project by HRTZ65
« Reply #54 on: November 03, 2019, 08:01:30 PM »
 :thumb:
The boot looks much better now

Offline HRTZ65

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Re: 69 Convertible Project by HRTZ65
« Reply #55 on: December 10, 2019, 05:27:39 PM »
Well it's been awhile since the last update. While there hasn't been many exciting photos to update you with i have been busy ordering and organising the build phase when the body returns from the panel shop.

Transmission
The AOD has now been rebuilt to handle up to 650 BHP as well as upgraded valve bodies to improve shifting.



Torque Converter recommended by the engine builder is a 2800 Stall

Engine

The other 289 block i had was no good according to the engine builder. The engine builder found  a 302 from an AU falcon. Once this was stripped down and checked, we got the all clear.  The engine build will include 347 stroker kit, roller rockers and a mild cam. Once I know more details i will let you know as I'm relying on builder and mechanic to make decisions here.

Diff has been stripped but the build has been delayed by the brake kit not being here yet. Once the brake kit fitment is checked then the casing will be sent off for powder coating. There also seems to be a shortage of good quality bearing around. It still may be a few weeks until these turn up.

Body

Progress has been a little slow over the last few weeks. Rear and rear quarters have been filled and blocked ready for next primer coat. Work has now started underneath as well as engine bay.

In September i ordered from the US all the suspension and steering parts that I wanted for the car. Included in the order was subframe connectors which are required now by the body shop. After the order was placed I received a few shipping confirmation and forwarded these onto the shipping company that i was using.

My expectations was that it would take 3 months to get here and it turned out that way. With the number and size of the parts ordered i was expecting to hirer a ute/van to pick it all up. When i call to arrange a date for collection the guy said it would all fit in my car. I thought this sounded weird but went with it.

After collecting only 3 boxes and taking stock of what was in them i was missing 3/4 of the order. So after several emails/phone calls i found out that 1/2 the order was never sent by the seller and 1/4 of the order got lost at the shipping company.  :ouch:

The missing boxes have been found and will be shipped next week so should get here early January. The remainder of the order is going to a new shipping company and should also get here in January.

The other issue with this order is that the correctly ordered subframe connectors for a convertible turned up as the ones for a coupe/fastback. We have decided to modify the car to fit rather than delay the body work waiting for the replacements.



The good news is that they don't hang down as far as the convertible part improving ground clearance.

Fingers crossed i get the body back in 2 weeks. This will have undercarriage and engine bay fully painted.


So the moral of this story is ensure that you clearly understand what is in each tracking confirmation and get confirmation from the shipping company of the number of boxes that have been backed in the container. Never assume it will always go smoothly.......

Offline Jason67

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Re: 69 Convertible Project by HRTZ65
« Reply #56 on: December 11, 2019, 08:56:06 PM »
 :smilies: Looking good

Offline HRTZ65

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Re: 69 Convertible Project by HRTZ65
« Reply #57 on: January 13, 2020, 10:24:24 AM »
Well lots has happened since my last update. The main chassis is now done for this phase and the car will be back home this week and assembly can start.

Hope you all like the colour.











I'm still waiting on parts from the US. Some arrive this week, the rest should be here in Feb. 

Offline Marshall

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Re: 69 Convertible Project by HRTZ65
« Reply #58 on: January 13, 2020, 01:32:36 PM »
Thanks Marshall

What diff ratio and wheel size are you running?

What is it like cruising on freeways?

Reason i ask as i have a 65 fastback with a c4 and 347 windsor and it does not like cruising on freeways at 110km for very long. I've 3.00 in the diff. Did the fit of the AOD require body modification?

Drive-ability is important to me as I like doing week long road trips once a year.

Diff is 3.5   Cruises beautifully, slips into overdrive at 95kph.  Kicks down a gear when flooring the pedal at any speed.  Ive just driven back from Summernats on the M1, 4 days at the speed limit and it was an enjoyable experience.  I love the AOD.     :smile01:

Offline Marshall

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Re: 69 Convertible Project by HRTZ65
« Reply #59 on: January 13, 2020, 01:53:41 PM »
Another thing to be mindful of installing an AOD is the position of the shifter.  I used a Lokar 7A256-AOD-AFM which works good and has multipule adjustment options.

Offline HRTZ65

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Re: 69 Convertible Project by HRTZ65
« Reply #60 on: January 13, 2020, 04:57:06 PM »
Thanks for the response Marshall.

I have gone with 3.5 gear in the diff.

I was hoping to keep the original shifter and use the kit from CJ Pony to adapt to the AOD. I'll find out if that works in the next few months i guess.

cheers

Online Reborn67

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Re: 69 Convertible Project by HRTZ65
« Reply #61 on: January 13, 2020, 07:30:50 PM »
 Hey Guys, Have been following this thread with much interest, and now even more so,
 I am in the midst of a 347 build myself with the intent of putting a ' rebuilt ' C4 behind it, with much guidance and advice from many of the forum regulars, I would be going for a new diff between 3 - 3.5. My concern is being in Newcastle and doing highway driving from time to time the engine is going to be working hard for periods,  so now l am wondering the pros and cons of an AOD myself, different sandwich plate, flexplate, tailshaft, maybe more that l am unaware of,
So I would appreciate any more info from anyone that has done this install and their hindsight thoughts...,      Sorry to hijack your thread, might start a new one just for the sake of protocol...,Thanks  Andrew,

Offline Camaro91

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Re: 69 Convertible Project by HRTZ65
« Reply #62 on: January 14, 2020, 05:18:20 PM »
Yes Andrew, do that  :thumb:

Offline HRTZ65

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Re: 69 Convertible Project by HRTZ65
« Reply #63 on: January 15, 2020, 09:08:51 AM »
My thinking and research on 347 and transmission. While i'm no mechanic and have only a little experience my decision came from reading, talking to experienced mechanics and another car that i have that has a 347, C4 and 3.0 ratio diff.

While i'm sure that a combination of 347, C4 will work nicely, my setup is not so comfortable on fwy/hwy driving over 100km/h. Factors reducing comfort are loud long tube header exhaust, standard torque converter, lumpy cam and standard water pump with custom alloy radiator. if i changed to hi flow water pump and changed to a quieter exhaust then i believe it would be more comfortable on long drives.

When discussing options for this build i was told by all the mechanics that i should stick with a C4. The reasons why they said this was
-C4 is a strong transmission and will handle the 347 better
-AOD are sluggish
-the fit is very tight
-not many AOD's in australia and transmission shops don't know much about them

When you  read all the sites in the US the AOD is a very common upgrade and works well so i kept digging.

The shop i'm using to rebuild the engine then arranged to have their transmission shop come in and talk to me about it. This conversation sealed the deal for me. The transmission guy has built many AODs and he has one in his pickup truck. The standard AOD is not a strong but by upgrading the internals and valve bodies you then get a great cruising AOD. The value body that he uses also has a little trick that makes it work better with the standard shifter for a 3 speed C4. If you want to hold gears manually you can drop into low, then you shift into the next slot and once the AOD shifts you move back to low on the shifter. This will then hold 2nd until you click forward again which then moves to 3rd and when you shift to Drive it will engage overdrive when cruising. (Hope all that makes sense.)

I'm also going with a 2800 stall converter and a Holley sniper system (exhaust system still to be figured out). All of these factors should address the concerns i had about fwy/hwy driving.

Just my thoughts and research but please do your own research first before doing your builds.

cheers

Don

PS here's the other car i'm refering to


Offline Dwayne

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Re: 69 Convertible Project by HRTZ65
« Reply #64 on: January 15, 2020, 10:03:32 AM »
The value body that he uses also has a little trick that makes it work better with the standard shifter for a 3 speed C4. If you want to hold gears manually you can drop into low, then you shift into the next slot and once the AOD shifts you move back to low on the shifter. This will then hold 2nd until you click forward again which then moves to 3rd and when you shift to Drive it will engage overdrive when cruising. (Hope all that makes sense.)

This is called the "AOD shuffle"

Offline HRTZ65

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Re: 69 Convertible Project by HRTZ65
« Reply #65 on: January 15, 2020, 02:51:49 PM »
i've never heard of that before. Thanks for your input Dwayne  :cheers:

Online Reborn67

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Re: 69 Convertible Project by HRTZ65
« Reply #66 on: January 19, 2020, 04:32:28 PM »
 Interesting reading, like you say.  l will do more "research" and try to track down a good trans expert and pick his brains aswell,  Thanks..,