Head gasket interchange?
02-05-2011, 10:00 PM
#1
Head gasket interchange?
I see some sellers of head gaskets advertising that the HG can fit 944, 924S as well as 951. Is this possible? When I examine porsche part numbers I find that a 944 takes a 944 104 374 14 wile a 951 takes a 951 104 374 02. Is there a physical difference in the gaskets, if so what is it?
02-05-2011, 11:20 PM
#2
Track Day
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I heard someone saying that the 951 HG is thinner, and also that it might improve your engine to a higher compression in a na by having the head closer to the block. I really don't think you'll get an improvement with such a small amount.
02-06-2011, 10:49 AM
#4
Proprietoristicly Refined
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The "turbo" marked HG is now the normal shipped for the 944 engines that do not need a thicker HG due to "surface" machine work on the head that would require the thicker HG.
It is similiar to the "upgraded/updated" turbo WP.
The picture shows my old HG and the new "turbo" HG (my spare)
I am not sure if the turbo HG is thinner than the OEM. I measured with a digital caliper and compared the uncompressed areas of the old to the new and the cylinder aluminum crush sections and it is difficult to say.
GL
John
It is similiar to the "upgraded/updated" turbo WP.
The picture shows my old HG and the new "turbo" HG (my spare)
I am not sure if the turbo HG is thinner than the OEM. I measured with a digital caliper and compared the uncompressed areas of the old to the new and the cylinder aluminum crush sections and it is difficult to say.
GL
John
