996 cup cylinder head differences
05-12-2011, 04:02 AM
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Racer
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996 cup cylinder head differences
anyone know the difference (if any) between cylinder heads on a 996 cup engine with CUP stampings and heads with GT3 stampings? i have both sets on Cup engines and was curious.
the ones stamped CUP seem to end with 97 part numbers going by the engravings
the ones stamped CUP seem to end with 97 part numbers going by the engravings
Last edited by outline; 05-12-2011 at 04:34 AM.
05-15-2011, 12:40 PM
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Racer
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Thanks serge
I finally talked with motorsport and asked. They said the 97 numbers engraved onto the heads aren't good numbers.
I'll take some pics this week and send to them.
All they said at this stage was Cup stamped parts are for cup cars but the GT3 car was the cups basis.
I assume this meant that the heads should be stamped cup but at times perhaps they just used GT3 stamped heads with cup cams etc.
If you've any info etc though that would be great. There's no real reason behind it other than my own curiosity.
I'd be interested to see what the stampings on your heads read though.
The heads with the GT3 stamping are still on a factory sealed engine.
I finally talked with motorsport and asked. They said the 97 numbers engraved onto the heads aren't good numbers.
I'll take some pics this week and send to them.
All they said at this stage was Cup stamped parts are for cup cars but the GT3 car was the cups basis.
I assume this meant that the heads should be stamped cup but at times perhaps they just used GT3 stamped heads with cup cams etc.
If you've any info etc though that would be great. There's no real reason behind it other than my own curiosity.
I'd be interested to see what the stampings on your heads read though.
The heads with the GT3 stamping are still on a factory sealed engine.
