Mitsubishi 4G63/4G64 1997/2351, ACL Race Series Main Bearings (5M1186H)
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Mitsubishi 4G63/4G64 1997/2351 ACL Race Series Main Bearings (5M1186H)
Enhance your engine's performance with the Mitsubishi 4G63/4G64 1997/2351 ACL Race Series Main Bearings (5M1186H). Specifically engineered to endure higher RPM conditions, these bearings are a top choice for racing enthusiasts and performance-driven applications. Designed for popular 4, 6, and 8 cylinder engines, they offer superior durability and reliability.
- High Strength Overlay Plate: Features a reduced thickness for enhanced performance.
- Hardened Steel Backs: All Conrod Bearings come with hardened steel backs for added strength.
- Increased Crush: Eliminates flash plating for a more secure fit.
- 3/4 Grooving: Main Bearings are designed with 3/4 grooving to ensure optimal oil supply.
- Consistent Wall Tolerances: Provides tight and consistent wall tolerances for precision.
- Oversize Chamfers: Available where applicable for improved fitment.
Explore the full range of ACL Race Series Engine Bearings for unmatched performance and reliability.
| Product Name | Mitsubishi 4G63/4G64 1997/2351, ACL Race Series Main Bearings (5M1186H) |
|---|---|
| Brands | ACL |
| Engine | 4G63 |
| Make | Mitsubishi |
Delivery & Freight
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What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What are the key features of the ACL Race Series Main Bearings for the Mitsubishi 4G63/4G64?
The ACL Race Series Main Bearings for the Mitsubishi 4G63/4G64 feature a high strength overlay plate with reduced thickness for enhanced performance, hardened steel backs for added strength, and increased crush to eliminate flash plating. They also include 3/4 grooving for optimal oil supply and consistent wall tolerances for precision fitment.
Do these main bearings require any specific machining or clearances?
Yes, proper machining is essential. Ensure that the main bearing journals are correctly sized and that the clearances are set according to the engine builder's specifications. This will ensure optimal performance and reliability, especially under high RPM conditions.
Are these bearings suitable for high-performance applications?
Absolutely. The ACL Race Series Main Bearings are specifically engineered for high RPM conditions, making them an excellent choice for racing enthusiasts and performance-driven applications. However, reliability will depend on proper installation and tuning.
What is the benefit of the 3/4 grooving design in these main bearings?
The 3/4 grooving design ensures a more consistent and optimal oil supply to the bearings, which is crucial for maintaining lubrication and reducing wear during high-performance operation.
Can these bearings be used in a street application?
While these bearings are designed for racing and high-performance applications, they can be used in street engines if the engine is built for performance. However, ensure that the engine is properly tuned and maintained to avoid potential issues.
