
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).
Part number 330058R
Gasket thickness: 1.30mm
Bore size: 86.50mm
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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 |

Spring data:
Seat pressure [email protected]
Max lift. 14.90mm
Rate 12.50lbs/mm
Spring coil bind 24.70mm
Set includes:
Dual springs: 16 pcs. SPR-M1007D
Titanium retainers: 16 pcs. RET-M65-T1
Seats: 16 pcs. SEAT-M1007D
Valve seals: 16pcs. VS-H6.6E


Product info:
Length: 968mm
Width: 29mm
Number of tooth: 121
Gates' timing belts offer a precision fit with easy installation and no interference engine damage - exactly what you've come to expect from the worldwide leader in timing belts.
- Tensile cord reinforced with premium, high-strength glass cords.
- Gripping teeth with aramid fiber technology and high saturation HNBR elastomeric composites for exceptional durability and heat resistance.
- Wear-resistant tooth jacket supported by reinforced nylon fabric and double-tooth stability.
The superior construction of Gates timing belts makes them 300 percent stronger than the standard aftermarket belt while providing up to three times the heat resistance.


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| Quantity | 4 | ||||||
| Crankshaft | 44.996 / 44.981 | ||||||
| Housing | 47.998 / 48.019 | ||||||
| Max Wall | 1.488 | ||||||
| Max Length | 21.100 |

| ENGINE BEARINGS | ||
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CON ROD BEARING SET |
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| Part# | ||
| 4B1236H |
4B1236HX |
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| Sizes | STD, .025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
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| Min Std Shaft Size |
2.0454in / 51.954 mm |
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| Max Std Shaft Size |
2.0461in / 51.972 mm |
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| Min Std Tunnel Size |
2.1654 in / 55.000 mm |
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| Max Std Tunnel Size |
2.1657 in / 55.010 mm |
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| Max Wall at Crown |
0.0591in / 1.500 mm |
0.0585in / 1.487 mm |
| Max Overall Length |
0.669 in / 17.00 mm |
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| Notes | - | |
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Diagram |
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COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flouroelastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements
