Speed Pro 140M Engine Crankshaft Main Bearing Set

OE Quality 60-Day Returns

Speed Pro 140M Engine Crankshaft Main Bearing Set

Brand	Speed Pro 140M
Application	Competition series
Displacement	400
Engine Family	Small block
Manufacture	Chevrolet
Material	Super duty alloy
Part Material	Steel backed babbitt or bronze alloy
Set Type	Main set
Sizes	Std-1-1x-9-10-11-19-20
Standard Size	Standard
Fits	Chevrolet, GMC, and Pontiac · 189 vehicles

Competition Series. Built for demanding engine applications.

3/4 grooved. Promotes consistent oil flow across the bearing surface.

Super Duty Alloy. Uses a durable material blend for added strength.

Cross-references MB509HP, MB509XP and MS1038H for the same application. See all 3.

$126.70Free shipping

In stock · usually ships same day before 1pm CST

Step 1 — Confirm fitment

Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment

Verify this part fits before purchasing — free returns if it doesn't

Step 2 — Quantity

Free shipping to the continental U.S.

Free returns within 60 days if it doesn't fit when fitment is verified.

Not what you need? See all Engine Crankshaft Main Bearing Set options

Speed Pro 140M Main Bearing Set for Small Block Chevy

Speed Pro 140M is a performance main bearing set for Chevrolet small block 400 applications. Built for standard-size service with a 3/4 grooved design, it supports engines used in street performance and competition builds.

Key Features

Part number: 140M
Engine family: Small Block Chevrolet 400
Competition Series application
3/4 grooved design for oiling support
Standard size main set
Super Duty Alloy construction
Steel backed babbitt or bronze alloy bearing material

Detailed Description

Speed Pro 140M is an engine crankshaft main bearing set for Chevrolet small block 400 builds that need a standard-size performance bearing solution. The 3/4 groove layout is suited to applications where consistent oil distribution across the main journals is important, while the Super Duty Alloy and steel-backed bearing construction provide a performance-focused foundation for rebuilds and upgrades. This part cross-references Monroe Shocks & Struts (e.g., MB509HP, MB509XP) for the same application.

Compatible With Chevrolet C10, Chevrolet C20, Chevrolet C20 Suburban, Chevrolet K10, Chevrolet K20, Chevrolet K20 Suburban, Chevrolet K30, Chevrolet Caprice, Chevrolet El Camino, Chevrolet Impala, Chevrolet Malibu, Chevrolet Monte Carlo, Chevrolet Bel Air, Chevrolet G10, Chevrolet P10, Chevrolet P30, GMC C1500, GMC C2500, GMC C2500 Suburban, GMC C3500, GMC G1500, GMC G2500, GMC G3500, GMC K1500, GMC K1500 Suburban, GMC K2500, GMC K2500 Suburban, GMC K3500, GMC G25, GMC G35, GMC G15, GMC Jimmy, Pontiac Laurentian, and Pontiac Parisienne in the listed model years.

Common Uses

Replacing worn main bearings during a Chevrolet 400 small block rebuild
Restoring proper crankshaft support in high-load street engines
Addressing bearing wear from age, mileage, or oiling issues
Supporting performance refreshes for C10, K10, and similar GM truck applications
Servicing classic Chevrolet and GMC V8 builds that require standard-size mains

Installation Notes

Verify crankshaft journal condition, housing bore size, and oil clearance before assembly. Confirm the engine is a Chevrolet small block 400 and match the standard-size specification to the crankshaft and block measurements. Clean all oil passages thoroughly and follow factory torque and assembly procedures during installation. Fits 1976-1980 Chevrolet C10, 1976-1980 Chevrolet C20, 1976-1980 Chevrolet C20 Suburban, 1975-1980 Chevrolet G20, 1975-1980 Chevrolet G30, 1975-1980 Chevrolet K10, 1975-1980 Chevrolet K20, 1975-1980 Chevrolet K20 Suburban, 1977-1980 Chevrolet K30, 1979-1980 GMC C1500, 1980 GMC C2500 Suburban, 1979-1980 GMC G2500, 1979-1980 GMC G3500, 1979-1980 GMC K1500, 1979-1980 GMC K1500 Suburban, 1979-1980 GMC K2500, 1979-1980 GMC K2500 Suburban, 1979-1980 GMC K3500, 1975-1979 Chevrolet K10 Suburban, 1975-1979 Chevrolet K5 Blazer, 1979 GMC C2500, 1979 GMC C3500, 1979 GMC G1500, 1975-1979 GMC Jimmy, 1976-1978 Chevrolet C30, 1975-1978 GMC G25, 1975-1978 GMC G35, 1977 Chevrolet P10, 1970-1976 Chevrolet Caprice, 1973-1976 Chevrolet El Camino, 1976 Chevrolet G10, 1970-1976 Chevrolet Impala, 1973-1976 Chevrolet Malibu, 1970-1976 Chevrolet Monte Carlo, 1976 Chevrolet P30, 1976 GMC G15, 1970-1975 Chevrolet Bel Air, 1970-1974 Pontiac Laurentian, and 1970-1974 Pontiac Parisienne.

Quality Assurance

Speed Pro positions this component as a value-focused engine part for track use, strip use, and street driving, with emphasis on performance-oriented quality and fit for Chevrolet small block applications.

This part fits 189 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Notes
1980	Chevrolet	C10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	Chevrolet	C20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	Chevrolet	C20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	Chevrolet	G20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	Chevrolet	G30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	Chevrolet	K10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	Chevrolet	K20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	Chevrolet	K20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	Chevrolet	K30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	GMC	C1500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	GMC	C2500 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	GMC	G2500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	GMC	G3500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	GMC	K1500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	GMC	K1500 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	GMC	K2500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	GMC	K2500 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1980	GMC	K3500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	C10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	C20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	C20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	G20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	G30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	K10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	K10 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	K20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	K20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	K30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	Chevrolet	K5 Blazer	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	C1500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	C2500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	C3500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	G1500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	G2500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	G3500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	Jimmy	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	K1500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	K1500 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	K2500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	K2500 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1979	GMC	K3500	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	C10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	C20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	C20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	C30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	G20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	G30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	K10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	K10 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	K20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	K20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	K30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	Chevrolet	K5 Blazer	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	C15	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	C25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	C25 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	C35	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	G25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	G35	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	Jimmy	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	K15	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	K15 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	K25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	K25 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1978	GMC	K35	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	C10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	C20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	C20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	C30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	G20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	G30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	K10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	K10 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	K20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	K20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	K30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	K5 Blazer	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	Chevrolet	P10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	GMC	C25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	GMC	C35	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	GMC	G25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	GMC	G35	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	GMC	Jimmy	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	GMC	K15	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	GMC	K15 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	GMC	K25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	GMC	K25 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1977	GMC	K35	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	C10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	C20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	C20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	C30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	Caprice	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	El Camino	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	G10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	G20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	G30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	Impala	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	K10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	K10 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	K20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	K20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	K5 Blazer	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	Monte Carlo	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	Chevrolet	P30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	C15	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	C25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	C35	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	G15	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	G25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	G35	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	Jimmy	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	K15	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	K15 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	K25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	K25 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1976	GMC	Sprint	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	Bel Air	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	Caprice	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	El Camino	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	G20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	G30	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	Impala	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	K10	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	K10 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	K20	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	K20 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	K5 Blazer	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	Malibu	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	Chevrolet	Monte Carlo	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	GMC	G25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	GMC	G35	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	GMC	Jimmy	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	GMC	K15	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	GMC	K15 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	GMC	K25	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	GMC	K25 Suburban	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1975	GMC	Sprint	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1974	Chevrolet	Bel Air	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1974	Chevrolet	Caprice	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1974	Chevrolet	El Camino	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1974	Chevrolet	Impala	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1974	Chevrolet	Monte Carlo	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1974	GMC	Sprint	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1974	Pontiac	Laurentian	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1974	Pontiac	Parisienne	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1973	Chevrolet	Bel Air	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1973	Chevrolet	Caprice	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1973	Chevrolet	Chevelle	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1973	Chevrolet	El Camino	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1973	Chevrolet	Impala	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1973	Chevrolet	Monte Carlo	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1973	Pontiac	Laurentian	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1973	Pontiac	Parisienne	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Chevrolet	Bel Air	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Chevrolet	Biscayne	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Chevrolet	Brookwood	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Chevrolet	Caprice	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Chevrolet	Chevelle	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Chevrolet	Impala	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Chevrolet	Kingswood	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Chevrolet	Monte Carlo	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Chevrolet	Townsman	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Pontiac	Laurentian	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1972	Pontiac	Parisienne	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Chevrolet	Bel Air	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Chevrolet	Biscayne	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Chevrolet	Brookwood	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Chevrolet	Caprice	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Chevrolet	Chevelle	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Chevrolet	Impala	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Chevrolet	Kingswood	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Chevrolet	Monte Carlo	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Chevrolet	Townsman	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Pontiac	Laurentian	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1971	Pontiac	Parisienne	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Chevrolet	Bel Air	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Chevrolet	Biscayne	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Chevrolet	Brookwood	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Chevrolet	Caprice	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Chevrolet	Chevelle	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Chevrolet	Estate	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Chevrolet	Impala	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Chevrolet	Kingswood	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Chevrolet	Monte Carlo	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Chevrolet	Townsman	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Pontiac	Laurentian	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Pontiac	Parisienne	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
1970	Pontiac	Strato-Chief	6.6L	V8	Performance main bearing set with 3/4 grooves in standard size.
No rows match your filter.

Directly replaces or cross-references 3 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

MB509HPMB509XPMS1038H