Main Bearings
Circle Track Main Bearings at JJ Motorsports
Main bearings support the crankshaft's weight and rotation, providing durability and stability under high loads in circle track racing. Designed for late models, modifieds, and street stocks, these bearings ensure consistent performance and longevity in demanding IMCA, USMTS, and dirt oval conditions, available in coated and extra clearance options for Small Block Ford and GM LS-Series engines.
Shop trusted brands like MAHLE ORIGINAL/CLEVITE for coated H-Series sets, KING BEARINGS for high-performance options, and ACL BEARINGS for reliable bearings. Explore related categories such as Circle Track Engine Bearings for complete bearing solutions or Circle Track Engines and Components for additional upgrades.
Top Circle Track Main Bearings
- Coated Main Bearing Set MS-590HC – Main Bearing H-Series Standard Coated Small Block Ford.
- Main Bearing Set GM LS MS-2411HX – Main Bearings H-Series Standard Extra Oil Clearance GM LS-Series.
- Main Bearing Set GM LS Coated MS-2411HC – Main Bearings H-Series Standard Coated GM LS-Series.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Main Bearing Set MS-909H-21
MICHIGAN 77
$97.99Main Bearing Set Main BearingH-Series0.021 in UndersizeSmall Block ChevyKitM77MS909H21- SKU:
- M77MS909H21
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- MFG Part #:
- MS909H21
$97.99 -
Main Bearing Set MS-909H-20
MICHIGAN 77
$98.99Main Bearing Set Main BearingH-Series0.020 in UndersizeSmall Block ChevyKitM77MS909H20- SKU:
- M77MS909H20
- Availability:
- Ships Same Business Day
- Weight:
- 1.37 LBS
- MFG Part #:
- MS909H20
$98.99 -
Main Bearing Set MS-909H-19
MICHIGAN 77
$109.99Main Bearing Set Main BearingH-Series0.019 in UndersizeSmall Block ChevyKitM77MS909H19- SKU:
- M77MS909H19
- Availability:
- Ships Same Business Day
- Weight:
- 1.34 LBS
- MFG Part #:
- MS909H19
$109.99Qty in Cart: 0Quantity:Price:$109.99Subtotal: -
Main Bearing Set MS-909H-10
MICHIGAN 77
$101.99Main Bearing Set MS-909H-10 High-quality main bearing set designed for durability and performance. Compatible with H-Series engines for optimal fit and functionality. 0.010 in undersize for precision engineering and reduced friction. Specifically...M77MS909H10- SKU:
- M77MS909H10
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- MFG Part #:
- MS909H10
$101.99 -
Main Bearing Set MS-909H-1
MICHIGAN 77
$106.99Main Bearing Set MS-909H-1 High-quality main bearing set designed for optimal engine performance. Compatible with H-Series engines for reliable operation. Features a 0.001 inch undersize for precise fit and functionality. Specifically...M77MS909H1- SKU:
- M77MS909H1
- Availability:
- Ships Same Business Day
- Weight:
- 1.26 LBS
- MFG Part #:
- MS909H1
$106.99 -
Main Bearing Set MS-909H
MICHIGAN 77
$88.99Main Bearing Set MS-909H Includes high-quality main bearings for optimal performance Designed specifically for H-Series engines Standard size for easy installation and compatibility Perfect fit for Small Block Chevy applications ...M77MS909H- SKU:
- M77MS909H
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MFG Part #:
- MS909H
$88.99 -
Main Bearing Set MS-590P-30
MICHIGAN 77
$34.99Main Bearing Set Main BearingP-Series0.030 in UndersizeSmall Block FordKitM77MS590P30- SKU:
- M77MS590P30
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MFG Part #:
- MS590P30
$34.99 -
Main Bearing Set MS-590P-20
MICHIGAN 77
$61.99Main Bearing Set Main BearingP-Series0.020 in UndersizeSmall Block FordKitM77MS590P20- SKU:
- M77MS590P20
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- MFG Part #:
- MS590P20
$61.99 -
Main Bearing Set MS-590P-10
MICHIGAN 77
$61.99Main Bearing Set Main BearingP-Series0.010 in UndersizeSmall Block FordKitM77MS590P10- SKU:
- M77MS590P10
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- MS590P10
$61.99 -
Main Bearing Set MS-590P
MICHIGAN 77
$61.99Main Bearing Set Main BearingP-SeriesStandardSmall Block FordKitM77MS590P- SKU:
- M77MS590P
- Availability:
- Ships Same Business Day
- Weight:
- 1.09 LBS
- MFG Part #:
- MS590P
$61.99 -
Main Bearing Set MS-590HX
MICHIGAN 77
$114.99Main Bearing Set Main BearingH-SeriesStandardExtra Oil ClearanceSmall Block FordKitM77MS590HX- SKU:
- M77MS590HX
- Availability:
- Ships Same Business Day
- Weight:
- 1.08 LBS
- MFG Part #:
- MS590HX
$114.99 -
Main Bearing Set MS-590H-10
MICHIGAN 77
$119.99Main Bearing Set MS-590H-10 High-quality main bearing designed for durability Compatible with H-Series engines for optimal performance Features a 0.010 in undersize for precise fit Specifically engineered for Small Block Ford applications Comes as a...M77MS590H10- SKU:
- M77MS590H10
- Availability:
- Ships Same Business Day
- Weight:
- 1.18 LBS
- MFG Part #:
- MS590H10
$119.99 -
Main Bearing Set MS-590H-1
MICHIGAN 77
$112.99Main Bearing Set Main BearingH-Series0.001 in UndersizeSmall Block FordKitM77MS590H1- SKU:
- M77MS590H1
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- MFG Part #:
- MS590H1
$112.99 -
Main Bearing Set MS-590H
MICHIGAN 77
$97.99Main Bearing Set MS-590H High-quality main bearing set designed for optimal engine performance Compatible with H-Series engines for a perfect fit Standard size ensures easy installation and reliable operation Specifically engineered for Small Block Ford...M77MS590H- SKU:
- M77MS590H
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- MS590H
$97.99 -
Main Bearing Set MS-429P-30
MICHIGAN 77
$81.99Main Bearing Set MS-429P-30 High-quality main bearing set designed for optimal performance Specifically engineered for P-Series applications Features a 0.030 in undersize for precise fitting Compatible with Small Block Chevy engines Includes all...M77MS429P30- SKU:
- M77MS429P30
- Availability:
- Ships Same Business Day
- Weight:
- 1.28 LBS
- MFG Part #:
- MS429P30
$81.99 -
Main Bearing Set MS-429P-20
MICHIGAN 77
$102.99Main Bearing Set MS-429P-20 High-quality main bearing set for reliable engine performance Designed specifically for P-Series applications 0.020 in undersize for precise fitment Compatible with Small Block Chevy engines Complete kit for easy installation...M77MS429P20- SKU:
- M77MS429P20
- Availability:
- Ships Same Business Day
- Weight:
- 1.23 LBS
- MFG Part #:
- MS429P20
$102.99 -
Main Bearing Set MS-429P-10
MICHIGAN 77
$104.99Main Bearing Set Main BearingP-Series0.010 in UndersizeSmall Block ChevyKitM77MS429P10- SKU:
- M77MS429P10
- Availability:
- Ships Same Business Day
- Weight:
- 1.18 LBS
- MFG Part #:
- MS429P10
$104.99 -
Main Bearing Set MS-429P
MICHIGAN 77
$77.99Main Bearing Set MS-429P High-quality main bearing set for optimal engine performance Designed specifically for P-Series applications Standard size for a perfect fit in your engine Compatible with Small Block Chevy engines Complete kit includes all...M77MS429P- SKU:
- M77MS429P
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- MFG Part #:
- MS429P
$77.99 -
Main Bearing Set MS-429H
MICHIGAN 77
$127.99Main Bearing Set MS-429H High-quality main bearings for optimal engine performance Designed specifically for H-Series engines Standard size for easy installation and compatibility Perfect fit for Small Block Chevy models Comprehensive kit includes all...M77MS429H- SKU:
- M77MS429H
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- MFG Part #:
- MS429H
$127.99 -
Main Bearing Set MS-1564P
MICHIGAN 77
$313.99Main Bearing Set MS-1564P High-quality main bearing set designed for durability and performance. Compatible with P-Series engines for optimal fit and functionality. Standard size, ensuring a perfect match for your Small Block Chevy. Includes all...M77MS1564P- SKU:
- M77MS1564P
- Availability:
- Ships Same Business Day
- Weight:
- 2.37 LBS
- MFG Part #:
- MS1564P
$313.99
