Nominations for improved cooling head gasket

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Nominations for improved cooling head gasket

by Harv » Sat Jan 14, 2017 7:57 am

Ladies and Gents,

The aim of this post is to collect firm orders for a new, better grey motor cylinder head gasket.

The link below shows some pretty detailed work by one of the FE/FC Holden forum members: http://forum.fefcholden.club/index.php?topic=26399.0
The upshot of it is that in 1963 GMH issued a Service Note AN 1627, which gives a revised head gasket, part number 7424869. The new head gasket results in an increased flow of cooler water to the rear cylinders and valve seats, and is designed for use on vehicles operated at prolonged high speed or under conditions where severe operating temperatures are experienced. The “normal” grey motor gasket has 38 holes punched in it, in addition to the 6 large cylinder bore holes. The 7424869 gasket has 12 of the 38 small holes left blank (unpunched) to change the water flow through the cylinder head. The gasket is used in conjunction with some simple enlarging of the rear water jacket holes in cylinder head and cylinder block. To upgrade your standard grey motor cooling, you remove the cylinder head, do some very simple drilling (very achievable in a back yard), and use the new gasket.

Note that the standard gaskets sold over the counter by Repco, SuperCheap etc are not the better-cooling 7424869. To the best of my knowledge, the 7424869 gasket is not available, other than a few NOS survivors. The work done on the FE/FC forum shows that the 7424869 gasket changes really work.

My intention is to get a run of the 7424869 gaskets made (I want one anyway for my meth-monster grey motor project ;D). AA Gaskets in Melbourne is willing to make the gaskets up, though we would have to pay for tooling, as well as cover a minimum run of 50 gaskets. The indicative cost of the gaskets will be $70, plus postage. As a sense check, a standard head gasket from eBay is $35-60, depending on quality (the AA Gasket type quality is around the $60 mark).

I'm going to act as the focal point for an order, similar to what I did with the hydramatic service kits. I'll raise a separate post on each of the FX/FJ, FE/FC, FB/EK and EJ/EH forums, calling for nominations on who wants a gasket. I'm not doing FaceBook (me and FaceBook don't talk), but happy if anyone wants to spruik a link to the forums. I'll let the nominations run for two weeks (end of January), and hope we get 50 nominations. I assume some blokes will want two or three, and I'll probably take 5-10 (some for me, and some for the inevitable latecomers ::)). Provided we get 50, I'll place the order then manage the distribution. Not sure how I'll post these out without them getting bent... need some advice here please. If someone can scan me up a good copy of the GMH Service Bulletin, I'll include a print of that too in each parcel.

If you would like one (or more) of the 7424869 gaskets, please post here, and PM me your name and address. I’m going to take this as a firm commitment on your part to pay $70 plus postage. I’ll collect up the nominations, and see how we go by the end of January.

Cheers,
Harv
 
Posts: 418
Joined: Sun May 04, 2014 7:52 am

Re: Nominations for improved cooling head gasket

by Harv » Mon Jan 16, 2017 7:40 am

Interest in the gaskets has been fantastic. I now have 50 nominations spread over the various early-Holden forums, so it looks like the project is a goer. I'll start some more detailed conversations with AA Gaskets.

In the meantime, I'll keep collecting nominations until the end of January. The more nominations, the cheaper it is for us all.

As a word of warning, I'm only doing this once. I intend to buy enough gaskets for my own personal use, with few spares. If you want one of these gaskets after this batch, you'll need to organise a special run with AA gaskets yourself. AA Gaskets will still have the tooling, but may not want to stop their production process to make you 1 or 2 gaskets.

Cheers,
Harv
 
Posts: 418
Joined: Sun May 04, 2014 7:52 am

Re: Nominations for improved cooling head gasket

by Harv » Tue Jan 31, 2017 7:51 am

A reminder gents that today is the cut-off day for gasket orders.

Cheers,
Harv
 
Posts: 418
Joined: Sun May 04, 2014 7:52 am

Re: Nominations for improved cooling head gasket

by Harv » Fri Feb 17, 2017 2:21 pm

Last chance to get in on these gaskets. Lots of bites on the FX/FJ forum, the FE/FC forum and FB/EK forum. No interest on this forum so far.

These gaskets come with no warranty, from either me or the manufacturer.

I need to receive anyone's order by the end of February please. No more orders after that.

There are around 130 confirmed orders so far. Pricing will be approximately as follows:
Your share of the tooling cost: $13
Each gasket: $46
Packaging: $3 (you only pay this once per order)
Postage: $25 (you only pay this once per order)
Total: $87.00 for the 1st gasket, $59 for each gasket thereafter.
These are almost the final numbers: I’ll finalise them at the end of the month.

Cheers,
Harv
 
Posts: 418
Joined: Sun May 04, 2014 7:52 am


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