Model A head gasket

Snyder recommends on their web site and what I used:
Part # B-6051-XO | Model Year 28-34
DThis graphite style head gasket is basically the same gasket as our B-6051-C except it does not have the 2 small steam holes between the #2 and #3 cylinders which can be a weak point when used on a model A block. Best gasket #509G
We recommend using this head gasket when running our high compression heads on a model A block. Can also be used for stock model A head applications. USA
 
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Since 2018, I have gone through 3 head gaskets on my 190A Victoria that has a 6:1 compression ratio. The 3rd gasket, a Best 509C has been a success: · 4387 Miles: Best 509C Kevlar was installed without any sealer. Put all studs in hand tight then torqued to 30 lbs-ft, to 45 lbs-ft and then 55 lbs-ft. Next day found that gasket compressed, so re-torqued to 55 lbs-ft. 4400 Miles: Ran car 13 miles and afterward re-torqued head to 60 lbs-ft while engine was hot. Re-torqued the head again to 60 lbs-ft while the engine was hot. Some but not all nuts needed torque. 4437 Miles: Re-torqued head again to 60 lbs-ft. Gasket is still compressing. 4579 Miles: Re-torqued head to 60 lbs-ft. No issues!
 

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GPierce said:
Snyder recommends on their web site and what I used:
Part # B-6051-XO | Model Year 28-34
DThis graphite style head gasket is basically the same gasket as our B-6051-C except it does not have the 2 small steam holes between the #2 and #3 cylinders which can be a weak point when used on a model A block. Best gasket #509G
We recommend using this head gasket when running our high compression heads on a model A block. Can also be used for stock model A head applications. USA
Click to expand...

Snyder's website and catalog is a bit confusing. In one place it says to use the head gasket listed above B-6051-XO (Best 509G) but under the High Compression Head is says "You must use the 1932-34 "B" style head gasket with this head.

The 1932-34 "B" style head gasket is the B-6051-C (Best 573G).
 
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