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PostPosted: Mon Jun 02, 2025 2:40 pm 
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848cc
848cc

Joined: Tue Aug 23, 2022 4:04 pm
Posts: 96
Location: Newcastle
Looking for recommendations on a head gasket for a 1275. The block is a 9FSaY and head 12G940 (11 stud).

From what I can tell - there are 3 options for a composite gasket (not wanting copper).

* Payen AF470
* Payen BK450
* Victor Reinz GUG702560VR

From what I can tell the AF470 is the one to go for, but wanted to check.

Also wondering if I should replace the head studs with ARP studs while its all off? I've got no reason to think the existing studs are stretched (suspect they are originals) but seems like an ideal time to do it.


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PostPosted: Mon Jun 02, 2025 5:53 pm 
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religious status
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Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39750
Location: near Baulkham Hills, NSW
I've used all 3 and others over 50 years, BK450s got hard to get so I'm running an AF470.
I found one of the water holes not quite right on the Victor Reinz one but they work OK.
I don't trust copper gaskets now, they've not been the same since they took asbestos out eons ago.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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PostPosted: Mon Jun 02, 2025 7:27 pm 
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998cc
998cc
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Joined: Fri May 03, 2019 7:17 am
Posts: 748
I use the payen turbo version but not sure of the part number.

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Cheers Dave.


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PostPosted: Tue Jun 03, 2025 11:14 am 
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1098cc
1098cc

Joined: Wed Sep 30, 2015 9:38 am
Posts: 1572
Location: Brandy Hill, NSW
Found Payen BK450 at Classic Motoring


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