ACL RACE SERIES MAIN BEARING SUIT HOLDEN LS1 LS2 LS3 ~ 5M7298H
High performance Trimetal engine bearings
- Designed to withstand higher RPM conditions
- High strength overlay plate with reduced thickness for improved fatigue properties
5M7298H-020
Specifications for STD size only
| Sizes | STD, HX 001, 002, 010, 020 |
| Oil Clearance | |
| Half Type | Upper & lower |
| Material | F780 |
| Min. Std Shaft Size | 64,993 mm / 2.5588 in |
| Max. Std Shaft Size | 65,007 mm / 2.5593 in |
| Min. Std Tunnel Size | 69,873 mm / 2.7509 in |
| Max. Std Tunnel Size | 69,887 mm / 2.7515 in |
| Max Wall at Crown | 2,43 mm / 0.0957 in |
| Max Overall Length |
26,1 mm / 1.0276 in (7299H(F))
20,45 mm / 0.8051 in (7298H)
|
| Notes | |
| Diagrams |
7298H-L (1,2,4,5)
7298H-U (1,2,4,5)
7299H-L (3)
7299H-U (3)
|
OVERVIEW
- HIGH STRENGTH OVERLAY PLATE with reduced thickness for improved fatigue properties
- HARDENED STEEL BACKS on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
- INCREASED CRUSH for improved bearing retention
- ELIMINATION OF FLASH PLATING on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
- INCREASED ECCENTRICITY to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
- 3/4 GROOVED MAIN BEARINGS to optimize bearing load carrying surface area and oil flow to the conrod bearings.
- TIGHT CONSISTENT WALL TOLERANCES to help you maintain consistent clearances.
- ENLARGED ID CHAMFERS on bearing edges where required to accommodate large fillet radius on performance crankshafts.
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Make
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Engine
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Description
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Vehicles
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|---|---|---|---|
| Chevrolet | 4.8L Gen III LR4 | Chevrolet 294ci (4.8L) LR4 Vortec V8 OHV 2v | |
| Chevrolet | 4.8L Gen IV LY2 | Chevrolet 294ci (4.8L) LY2 Vortec V8 OHV 2v | |
| Chevrolet | 5.3L Gen III | Chevrolet 325ci (5.3L) Vortec V8 OHV 2v | |
| Chevrolet | 5.7L Gen III LS1 | Chevrolet 346ci (5.7L) LS1 V8 OHV 2v | |
| Chevrolet | 5.7L Gen III LS6 | Chevrolet 346ci (5.7L) LS6 V8 OHV 2v | |
| Chevrolet | 6.0L Gen IV LFA | Chevrolet 364ci (6.0L) LFA Vortec Hybrid V8 OHV 2v | |
| Chevrolet | 6.0L Gen IV LS2 | Chevrolet 364ci (6.0L) LS2 V8 OHV 2v | |
| Chevrolet | 6.0L Gen III Vortec | Chevrolet 364ci (6.0L) Vortec V8 OHV 2v | |
| Chevrolet | 6.2L Gen IV L99 | Chevrolet 376ci (6.2L) L99 V8 OHV 2v | |
| Chevrolet | 6.2L Gen IV LS3 | Chevrolet 376ci (6.2L) LS3 V8 OHV 2v | |
| Chevrolet | 6.2L Gen IV Vortec | Chevrolet 376ci (6.2L) Vortec V8 OHV 2v | |
| Holden | 5.7L Gen III LS1 | Holden 5.7L Gen III LS1 V8 OHV 2v | Holden Adventra VY II, Holden Adventra VZ, Holden Caprice WH, Holden Caprice WH II, Holden Caprice WK, Holden Statesman WH, Holden Statesman WH II, Holden Statesman WK, Holden Ute VU II, Hold |
| Holden | 6.0L Gen IV L76 | Holden 6.0L Gen IV L76 V8 OHV 2v | Holden Commodore VZ, Holden Crewman VZ, Holden Ute VZ |
| Holden | 6.0L Gen IV L98 | Holden 6.0L Gen IV L98 V8 OHV 2v | Holden Commodore VE, Holden Commodore VE II, Holden Ute VE II, Holden Ute VE |
| HSV | 6.0L Gen IV LS2 | HSV 6.0L Gen IV LS2 V8 OHV 2v | HSV Clubsport E Series |
| HSV | 6.2L Gen IV LS3 | HSV 6.2L Gen IV LS3 V8 OHV 2v | HSV Clubsport E Series |