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⚡ Upgrade your LS engine’s backbone with race-ready precision!
Michigan Motorsports Camshaft Thrust Retainer Plate Kit is a direct GM #12589016 replacement designed for non-VVT LS engines (4.8L to 6.2L). Featuring a heavy-duty flat-style plate and premium ARP 134-1002 bolt kit, it ensures superior durability and reliability under high RPM conditions. Trusted by professional LS builders, this kit guarantees OEM-fit installation and long-term serviceability for street and racing applications.








| ASIN | B08LW4H26W |
| Best Sellers Rank | #27,418 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Engine Head Bolt Sets |
| Brand | Michigan Motorsports |
| Color | Black |
| Compatible Groove Diameter | 8.06 Millimeters |
| Customer Reviews | 4.9 4.9 out of 5 stars (318) |
| Exterior Finish | Black Oxide |
| Fastener Size | 8mm |
| Fastener Type | bolts |
| Finish Types | Black Oxide |
| Head Type | Flat |
| Item Diameter | 2.25 Inches |
| Item Dimensions | 6.3 x 6.61 x 16.14 inches |
| Item Hardness | Grade 3 or 4 |
| Manufacturer | Michigan Motorsports |
| Manufacturer Grade | Grade III |
| Material Type | Alloy Steel |
| Metal Type | Alloy Steel |
| Model | E6300+F6200 |
| Number Of Items | 1 |
| Number of Pieces | 2 |
| Part Number | E6300+F6200 |
| Screw Head Style | Flat |
| Set Screw Thread Type | Metric |
| Size Name | M8 |
| Thread Class | 3A |
| Thread Size | M8 |
| Thread Style | Right Hand |
| Thread Type | Metric |
| Unit Count | 1 Count |
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