ACL performance race main bearings for the Nissan SR20DE/SR20DET engine. ACL race main bearings are manufactured with a tri-layer metal in order to withstand high RPM conditions, high stress loads, and high temperatures. Each ACL race bearing design features the following:
- Large chamfer to accomodate larger crankshaft fillets
- 3/4 groove main bearings to optimize bearing load carrying capacity and oil flow to rod bearings
- Incresed crush and tighter wall tolerance for better seating
- Improved overlay and reduced thickness for increased fatigue strength
- Hardened steel backing to maintain crush under high loads and temperatures
*** Price is for 1 COMPLETE SET OF MAIN BEARINGS FOR 1 ENGINE ***
** Item currently on backorder **
| Part Number | 5M2964H | 5M2964HX |
|---|---|---|
| Available Sizes | STD, 0.025, 0.25, 0.50 | STD |
| Oil Clearance | Standard | +0.001" Extra |
| Half Type | Upper and Lower | Upper and Lower |
| Material | Tri-metal | Tri-metal |
| Min. Std. Shaft Size | 2.1636" / 54.956mm | 2.1636" / 54.956mm |
| Max. Std. Shaft Size | 2.1646" / 54.980mm | 2.1636" / 54.956mm |
| Min. Std. Tunnel Size | 2.3206" / 58.944mm | 2.3206" / 58.944mm |
| Max. Std. Tunnel Size | 2.3216" / 58.968mm | 2.3206" / 58.944mm |
| Max Wall at Crown | 0.0780" / 1.980mm | 0.0775" / 1.967mm |
| Max. Overall Length | 0.752" / 19.10mm | 0.752" / 19.10mm |
| Notes | For non-GTiR SR20DE/SR20DET | |
| Year | Make | Model | Trim | App Notes |
| 1994 - 1998 | Nissan | 200SX (Non-US) | (S14) L4 2.0L SR20DET | None |
| 1999 - 2002 | Nissan | Silvia | (S14) L4 2.0L SR20DE | None |
| 1994 - 1998 | Nissan | Silvia | (S14) L4 2.0L SR20DET | None |
| 1994 - 1998 | Nissan | Silvia | (S14) L4 2.0L SR20DE | None |
| 1989 - 1993 | Nissan | Silvia | (S13) L4 2.0L SR20DET | None |
| 1989 - 1993 | Nissan | Silvia | (S13) L4 2.0L SR20DE | None |
| 1989 - 1998 | Nissan | 240SX | All | with SR20DET engine |
| 2000 - 2002 | Nissan | 200SX (Non-US) | (S15) L4 2.0L SR20DET | None |
| 1989 - 1998 | Nissan | 180SX | (S13) L4 2.0L SR20DE | None |
| 1989 - 1998 | Nissan | 180SX | (S13) L4 2.0L SR20DET | None |
| 1999 - 2002 | Nissan | Silvia | (S15) L4 2.0L SR20DET | None |
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