craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
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how can i tell if my engine has the cocast head on it?and what are the differences?
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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The coscast one has coscast stamped on it too, but you can't see it too easily.
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craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
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what are the differences apart from the core plug?
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Doesn't go porous like gm ones.
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ed
Member
Registered: 10th Sep 03
User status: Offline
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Yes they do, they are less prone to doing so though.
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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quote: Originally posted by sri power
what are the differences apart from the core plug?
To look at, nothing bar the stamp.
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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quote: Originally posted by ed
Yes they do, they are less prone to doing so though.
True, but i've hardly ever seen a porous coscast head.
The Gm ones are easy to fix anyway.
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C4RL0
Member
Registered: 30th Sep 06
Location: Cumbria
User status: Offline
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The early coscast heads also had straighter inlet ports meaning less restriction on intake.
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craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
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cheers i will check wich mine is tomorrow.
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