
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.

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Product detailed specification |
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Bore size |
81.50mm |
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Stroke |
86.40mm |
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Wossner compression ratio (CR) |
8.5:1 |
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OEM compression ratio (CR) |
9.5:1 |
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Dome volume (CC) |
-9.70cm3 |
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Compression height (CH) |
32.70mm |
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Pin diameter |
20mm |
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Fits for |
Audi 1.8T 20V (AEB, AGU and many others) |

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| Quantity | 4 | ||||||
| Crankshaft | 47.777 / 47.757 | ||||||
| Housing | 50.599 / 50.620 | ||||||
| Max Wall | 1.402 | ||||||
| Max Length | 18.971 |


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Product detailed specification |
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Bore size |
84.00mm |
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Stroke |
89.60mm |
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MAHLE compression ratio (CR) |
10.2:1 |
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OEM compression ratio (CR) |
10.2:1 |
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Dome volume (CC) |
-10.5cm3 |
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Compression height (CH) |
32.40mm |
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Pin diameter |
22mm |
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Features |
Accepts Turbo and Nitrous |
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Fits for |
BMW - 3.0 24V Turbo (S55B30) |


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Product detailed specification |
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Bore size |
95.51mm |
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Stroke |
88.40mm |
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Mahle motorsport compression ratio (CR) |
9.0:1 |
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OEM compression ratio (CR) |
9.0:1 |
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Dome volume (CC) |
-4cm3 |
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Compression height (CH) |
34.25mm |
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Pin diameter |
23mm |
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Features |
PowerPak Plus 2618 Alloy & Hard Anodized Top Ring Groove For Extreme Duty Applications |
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Fits for |
Nissan GT-R - 3.2 (V38DETT) |



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| Quantity | 4 | ||||||
| Crankshaft | 44.999 / 44.976 | ||||||
| Housing | 48.001 / 48.024 | ||||||
| Max Wall | 1.504 | ||||||
| Max Length | 19.401 |