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Product detailed specification |
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Model number |
SIVN-1050 |
| Head diameter |
35.00mm |
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Stem diameter |
5.46mm |
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Length |
103.30mm |
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Material |
Black nitrided |
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Fits for |
Subaru BRZ, Scion FR-S - 2.0 (FA20, FA20D) |

Athena Racing 330 series Cooper Ring cylinder head gasket set.
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: 330130R (2 pcs.)
Gasket thickness: 1.20mm
Bore size: 93.50mm
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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 |

Athena Racing 338 series multilayer steel (MLS) cylinder head gasket set.
Athena MLS gaskets are designed to suit the requirements of today’s competition engines offering enhanced sealing compared to the OEM product. The gaskets are assembled from 2-5 layers of high quality stainless and spring steels.
Part number: 338255R (2 pcs.)
Gasket thickness: 1.30mm
Bore size: 100.00mm
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Part number starting with 338 |
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Athena advantages |
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Optimized radius embossing shape |
The round shape of the embossing increases sealing on cylinder bore, oil and cooling water passages and improves spring back strength |
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Advanced stopper technology |
State of the technology enhances sealing pressure around the cylinder. Highest sealing properties in high power engines |
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Coating technology |
Designed & engineered by Athena the special coating applied on steel surfaces, improves temperature resistance & reliability of the head gasket |


Manley has released their H-Tuff Connecting Rods for the Subaru FA20 engine. These connecting rods were designed for elevated boost and higher power levels. These rods were created to bridge the gap between Manley's standard, proven H-Beams and top of the line Turbo Tuff® Series rods.
H-Tuff delivers a stronger rod with greater safety margin to handle elevated boost and higher power levels for a modest price premium over standard H-Beams. Manley's H-Tuff design incorporates wider beam and increased cross-sectional thickness in critical areas. These connecting rods are heat treated, stress relieved, shot peened, and 100% individually magnafluxed.

Seat pressure - 85lbs @ 33.5mm
Open (lift) pressure - 212lbs @ 10mm
Spring coil bind - 18.50mm
Rate - 12.50lbs/mm
Max lift - 15.00mm
Outer spring outer diameter: 30.20mm
Outer spring inner diameter: 22.20mm
Inner spring outer diameter: 22.20mm
Inner spring inner diameter: 16.80mm
Set includes:
Dual springs: 16 pcs. SPR-100-BRZ
Titanium retainers: 16 pcs. RET-H1000-BRZ
Seats: 16 pcs. SEAT-H1002-BRZ

| Sizes | STD, .025, .25 |
| Oil Clearance | |
| Half Type | |
| Material | F781 |
| Min. Std Shaft Size | 49.976 |
| Max. Std Shaft Size | 50.000 |
| Min. Std Tunnel Size | 53.000 |
| Max. Std Tunnel Size | 53.024 |
| Max Wall at Crown | 1,504 |
| Max Overall Length | 15,6 |
| Weight | 0.133 |
| Notes |

| Sizes | STD, .025, .25, .50 |
| Oil Clearance | |
| Half Type | Identical halves |
| Material | F780 |
| Min. Std Shaft Size | 2.6766in /67.985mm |
| Max. Std Shaft Size | 2.6775in /68.009mm |
| Min. Std Tunnel Size | 2.874in /73mm |
| Max. Std Tunnel Size | 2.8746in /73.016mm |
| Max Wall at Crown | 0.0986in /2.505mm |
| Max Overall Length | 0.6929in /17.6mm |
| Weight | 0 |
| Notes |

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
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| Part# | ||
| 4B8296H |
4B8296HX |
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| Sizes | STD, .025, .25, .50 | 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 |
2.0466in / 51.984mm |
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| Max Std Shaft Size |
2.0472in / 51.000mm |
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| Min Std Tunnel Size |
2.1654in / 55.000mm |
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| Max Std Tunnel Size |
2.1661in / 55.020mm |
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| Max Wall at Crown |
0.0591in / 1.500mm |
0.0585in / 1.487mm |
| Max Overall Length |
0.6496in / 16.50mm |
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| Notes | Suits 52mm journal only | |
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Diagram |
![]() |
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| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
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| Part# | ||
| 4B8296H |
4B8296HX |
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| Sizes | STD, .025, .25, .50 | 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 |
2.0466in / 51.984mm |
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| Max Std Shaft Size |
2.0472in / 51.000mm |
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| Min Std Tunnel Size |
2.1654in / 55.000mm |
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| Max Std Tunnel Size |
2.1661in / 55.020mm |
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| Max Wall at Crown |
0.0591in / 1.500mm |
0.0585in / 1.487mm |
| Max Overall Length |
0.6496in / 16.50mm |
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| Notes | Suits 52mm journal only | |
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Diagram |
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