Michigan Motorsports 2M4978 Piston Ring Set — 4.8L & 5.3L LS Stock Bore Moly Rings
- £78.29
- £78.29
- Unit price
- per
Couldn't load pickup availability
Free UK Delivery on All Orders
Free Returns
Description
xOverview
The Michigan Motorsports 2M4978 piston ring set is a Hastings standard-size moly replacement kit designed for LS-family engines. It supports rebuilds and performance upgrades for 4.8L and 5.3L powerplants, including popular LS variants such as LM7, L59, LS4, LY5, LMG, LMF, LH6, LC9, and L33. This kit emphasizes a precise fit with stock bore pistons, helping you approach a rebuild with confidence and a clear path to restoration or upgrade goals.
Key specifications
- 3.779 inch (96 mm) bore with a 1.5 mm top ring, 1.5 mm second ring, and 3.0 mm oil ring configuration
- Standard bore size compatibility specifically designed for stock bore LS pistons, providing a precise fit without extra machining
- Ring construction includes 1st oil ring: steel rail and stainless expansion; 2nd ring: grey iron; top ring: steel
Fitment & applications
- Engine families: LS-based 4.8L and 5.3L platforms, including LM7, L59, LS4, LY5, LMG, LMF, LH6, LC9, and L33
- Ideal for rebuilds and performance upgrades across daily drivers, work trucks, and applications requiring dependable piston rings
- Designed for stock bore with no machining needed, simplifying installation when rebuilding an LS engine
Materials & design
Rings are built for durability and consistent performance: the top ring is steel, the second ring uses grey iron, and the oil ring employs a steel rail with stainless expansion. This combination aims to balance wear resistance with effective oil control under typical LS operating conditions.
Practical notes
While results depend on overall engine condition and maintenance, the Hastings 2M4978 kit provides a solid foundation for reliable compression and oil sealing during the break-in phase and subsequent miles. This kit is a practical option for technicians seeking OEM-quality components for stock-bore LS builds.
Why choose Hastings 2M4978
- OEM-quality Hastings rings designed for precise fit with stock bore pistons
- Standard size configuration helps avoid machining and simplifies installation
FAQ
Q: What engines does the 2M4978 kit fit?
A: Fits 4.8L and 5.3L LS-based engines including LM7, L59, LS4, LY5, LMG, LMF, LH6, LC9, and L33.
Q: Why choose Hastings 2M4978 piston rings?
A: Standard size moly rings offer a reliable seal and compatibility with stock bore pistons for LS engine rebuilds.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Complete Your Setup
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
Recently Viewed Products
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per
- £78.29
- £78.29
- Unit price
- per