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๐ฉ Upgrade your LS engine with race-ready precision and peace of mind!
Michigan Motorsports Camshaft Thrust Retainer Plate Kit is a direct OEM replacement for GM #12589016, designed for non-VVT LS engines ranging from 4.8L to 6.2L. Featuring a heavy-duty flat-style plate and premium ARP 134-1002 bolts, this kit ensures superior durability, prevents bolt stripping, and withstands high-RPM stress. Trusted by professional builders for street and racing applications, it offers a perfect fit and long-term reliability.









| ASIN | B08LW4H26W |
| Best Sellers Rank | #20,481 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 out of 5 stars 315 Reviews |
| Exterior Finish | Black Oxide |
| Fastener Size | 8mm |
| Fastener Type | bolts |
| Finish Types | Black Oxide |
| Head Style | Flat |
| 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 | Alloy Steel |
| 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 |
M**S
Great product
Fit perfectly on lq4 6.0 ls and worth every penny.
J**R
Great quality
I know the ARP hardware is overkill for an application like this but it gives me peace of mind knowing I put the highest quality product available in my motor, they threaded in nicely and torqued down without any problems, just be sure you clean off the protectant thatโs on them with a solvent before applying thread locker
M**S
BUY IT!!!!
My husband said it worked wonders for his Camaro SS
S**E
Good quality
Good quality
G**L
Good
Arp has always been good ig
M**T
Highly recommended for a engine rebuild
Anything that has the ARP logo on it has my vote, I used this when I was rebuilding my lS1, great value and easy install an fit great
I**C
Great quality
Great quality
I**A
Fast shipping!
Very fast shipping! Ordered in the early afternoon and arrived next morning, installed within 24 hours of ordering. Great pricing. Definitely recommend replacing these as the main oil pressure issue held by this gasket when doing a cam.
O**R
Nothing to say but perfect
Nice oem replacement, seal was in perfect condition and nothing to say about the arp kit, always the best!
B**B
Buy it for DOD delete!
High quality and shipped fast!
D**2
Michigan Motorsports and ARP..nuff said
I feel warm and fuzzy inside knowing this isn't a chinesium retainer and flimsy bolts
Trustpilot
1 month ago
4 days ago