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Part number 204-4101
ARP cylinder head stud kit M11
Audi / Seat / Skoda / VW - 1.8T 20V (early AEB)
ARP is a manufacturer of fasteners/bolts found in engines and drivelines, ranging from OEM replacement parts to specialty hardware for racing applications. ARP is the world leader in fastener technology.
Athena Racing 330 series Cooper Ring cylinder head gasket.
For specific high horsepower applications, engine performance can be significantly improved by using Athena Cooper Ring gaskets, that are supplied with INOX steel ring. This technology outperforms conventional fire ring solutions.
Cooper Rings are oversize (also fits for oversize bores).
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Part number starting with 330 |
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Athena advantages |
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Reinforced material |
Asbestos free composite raw material OE approved |
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Stainless steel ring (AISI304) |
Separate stainless steel rings assure maximum sealing around cylinder bore also on NOS and/or turbo charged engine where boost is over 2 bars. No head and block machining required |
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Silicon beading |
Silicon-based beading is applied on critical areas to improve sealing around all cooling water and oil passages |
Valve springs data
Installed seat pressure:
Intake valve spring - 25kg, exhaust double valve spring - 36kg
Load:
Intake - [email protected], exhaust - [email protected]
Max lift:
intake - up to 11mm, exhaust - up to 12.7mm
Made from chrome-silicon steel SAE9254-V
12 pcs. intake valve single springs
8 pcs. exhaust valve double springs
12 pcs. intake valve spring titanium retainers
8 pcs. exhaust valve spring titanium retainers
Fits all 4 cylinder 1.8-2.0 20V Turbo/NA Audi / Seat / Skoda / VW engines.
With this set the risk of valve flutter and a possible engine failure is minimized.
Recommended for engines with series and racing camshafts and over 7600 RPM.
Titanium retainers are very strong and light, they help to eliminate valve float. Weight is only 9 and 4 g.
