Speed Pro 134M Engine Crankshaft Main Bearing Set

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Speed Pro 134M Engine Crankshaft Main Bearing Set

Brand	Speed Pro 134M
Application	Competition series
Displacement	429, 460
Engine Family	429, 460
Manufacture	Ford
Material	Super duty alloy
Part Material	Steel backed overplated bronze alloy
Set Type	Main set
Sizes	Std-1x-10-20-30
Standard Size	Standard
Fits	Ford, Lincoln, and Mercury · 78 vehicles

Competition Series. Built for demanding engine applications.

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

Steel-backed bronze alloy. Combines strength with a durable overplated bearing surface.

Cross-references MB5650HP, MS1039V and MS8039 for the same application. See all 3.

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Ford 429/460 Main Bearing Set

Speed Pro 134M is a performance main bearing set for Ford 429 and 460 engines. It uses a steel-backed, overplated bronze alloy construction with a 3/4 grooved design and standard sizing for precision engine rebuild work.

Key Features

Competition Series engine crankshaft main bearing set
3/4 grooved design for Ford 429 and 460 applications
Steel backed overplated bronze alloy bearing material
Super Duty Alloy construction
Standard size with size range listed as Std-1X-10-20-30
Fits Ford engine family 429 and 460

Detailed Description

Built for Ford big-block performance builds, Speed Pro 134M is a main bearing set for 429 and 460 engines used in street performance and competition applications. The 3/4 groove layout supports oiling characteristics commonly sought in performance engine assembly, while the steel-backed overplated bronze alloy construction provides a durable bearing surface for crankshaft support. This part number, 134M, is listed for standard-size use and is a direct match for rebuilds that require Ford 429/460 main bearings.

This part cross-references Monroe Shocks & Struts (e.g., MB5650HP, MS1039V) for the same application.

Vehicle Fitment

Fits 1969-1978 Ford LTD, N/A
Fits 1968-1978 Lincoln Continental, N/A
Fits 1975-1978 Mercury Grand Marquis, N/A
Fits 1969-1978 Mercury Marquis, N/A
Fits 1968-1976 Ford Thunderbird, N/A
Fits 1973-1976 Mercury Cougar, N/A
Fits 1969-1971 Mercury Cougar, N/A
Fits 1970-1976 Mercury Montego, N/A
Fits 1969-1974 Mercury Colony Park, N/A
Fits 1969-1971 Ford Mustang, N/A
Fits 1969-1970 Mercury Marauder, N/A

What It Helps Address

Crankshaft main bearing wear during engine rebuilds
Oil clearance issues in Ford 429/460 bottom-end service
Replacement needs for standard-size main bearing applications
Performance engine assembly requirements for street or track use
Restoration work on Ford, Lincoln, and Mercury big-block platforms

Installation Notes and Tips

Verify crankshaft journal size, block condition, and bearing clearance before assembly. Confirm that your engine is a Ford 429 or 460 application and match the bearing size to the crankshaft and machine work performed. Clean all bearing saddles and oil passages thoroughly before installation, and follow factory torque and lubrication specifications during engine assembly.

Quality Assurance

Speed Pro positions this part within its Competition Series line for performance engine components. The brand describes its engine parts as a value-focused option for street, strip, and track use, with emphasis on dependable materials and application-specific fitment.

This part fits 78 vehicles

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

Year	Make	Model	Liters	Cylinders	Position	Notes
1978	Ford	LTD	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1978	Lincoln	Continental	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1978	Mercury	Grand Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1978	Mercury	Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1977	Ford	LTD	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1977	Lincoln	Continental	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1977	Mercury	Grand Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1977	Mercury	Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1976	Ford	LTD	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1976	Ford	Thunderbird	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1976	Lincoln	Continental	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1976	Mercury	Cougar	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1976	Mercury	Grand Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1976	Mercury	Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1976	Mercury	Montego	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1975	Ford	LTD	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1975	Ford	Thunderbird	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1975	Lincoln	Continental	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1975	Mercury	Cougar	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1975	Mercury	Grand Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1975	Mercury	Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1975	Mercury	Montego	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1974	Ford	LTD	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1974	Ford	Thunderbird	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1974	Lincoln	Continental	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1974	Mercury	Colony Park	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1974	Mercury	Cougar	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1974	Mercury	Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1974	Mercury	Montego	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Ford	LTD	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Ford	LTD	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Ford	Thunderbird	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Ford	Thunderbird	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Lincoln	Continental	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Mercury	Colony Park	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Mercury	Colony Park	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Mercury	Cougar	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Mercury	Marquis	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Mercury	Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Mercury	Montego	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1973	Mercury	Montego	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1972	Ford	LTD	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1972	Ford	LTD	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1972	Ford	Thunderbird	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1972	Ford	Thunderbird	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1972	Lincoln	Continental	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1972	Mercury	Colony Park	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1972	Mercury	Colony Park	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1972	Mercury	Marquis	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1972	Mercury	Marquis	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1972	Mercury	Montego	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1971	Ford	LTD	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1971	Ford	Mustang	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1971	Ford	Thunderbird	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1971	Lincoln	Continental	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1971	Mercury	Colony Park	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1971	Mercury	Cougar	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1971	Mercury	Marquis	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1971	Mercury	Montego	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1970	Ford	LTD	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1970	Ford	Mustang	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1970	Ford	Thunderbird	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1970	Lincoln	Continental	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1970	Mercury	Colony Park	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1970	Mercury	Cougar	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1970	Mercury	Marauder	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1970	Mercury	Marquis	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1970	Mercury	Montego	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1969	Ford	LTD	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1969	Ford	Mustang	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1969	Ford	Thunderbird	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1969	Lincoln	Continental	7.5L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1969	Mercury	Colony Park	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1969	Mercury	Cougar	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1969	Mercury	Marauder	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1969	Mercury	Marquis	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1968	Ford	Thunderbird	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
1968	Lincoln	Continental	7.0L	V8	N/A	Performance main bearing set with 3/4 grooves in standard size.
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Directly replaces or cross-references 3 part numbers

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

MB5650HPMS1039VMS8039