OE Quality
60-Day Returns
Speed ProPart #: 141M

Speed Pro 141M Engine Crankshaft Main Bearing Set
40 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$187.41Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and Pontiac, Acadian, Bel Air, Caprice, Corvette, Impala, Laurentian, Malibu, Monte Carlo, Nova, and Parisienne
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all Engine Crankshaft Main Bearing Set options
Speed Pro 141M Engine Crankshaft Main Bearing Set
| Brand | Speed Pro |
|---|---|
| Part Number | 141M |
| Application | Competition series |
| Displacement | 396, 402, 427, 454 |
| Engine Family | Big block |
| Manufacture | Chevrolet |
| Material | Super duty alloy |
| Part Material | Steel backed overplated bronze alloy |
| Set Type | Main set |
| Sizes | Std-1-1x-9-10-11-19-20-21-30 |
| Standard Size | Standard |
This part fits 40 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1976 | Chevrolet | Caprice | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1976 | Chevrolet | Impala | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1975 | Chevrolet | Bel Air | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1975 | Chevrolet | Caprice | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1975 | Chevrolet | Impala | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1975 | Chevrolet | Malibu | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1975 | Chevrolet | Monte Carlo | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1974 | Chevrolet | Bel Air | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1974 | Chevrolet | Caprice | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1974 | Chevrolet | Corvette | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1974 | Chevrolet | Impala | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1974 | Chevrolet | Malibu | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1974 | Chevrolet | Monte Carlo | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1973 | Chevrolet | Bel Air | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1973 | Chevrolet | Caprice | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1973 | Chevrolet | Corvette | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1973 | Chevrolet | Impala | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1973 | Chevrolet | Malibu | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1973 | Chevrolet | Monte Carlo | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1972 | Chevrolet | Bel Air | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1972 | Chevrolet | Caprice | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1972 | Chevrolet | Corvette | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1972 | Chevrolet | Impala | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1972 | Chevrolet | Monte Carlo | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1971 | Chevrolet | Bel Air | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1971 | Chevrolet | Caprice | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1971 | Chevrolet | Corvette | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1971 | Chevrolet | Impala | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1971 | Chevrolet | Monte Carlo | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1971 | Chevrolet | Nova | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1971 | Pontiac | Acadian | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1970 | Chevrolet | Bel Air | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1970 | Chevrolet | Caprice | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1970 | Chevrolet | Corvette | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1970 | Chevrolet | Impala | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1970 | Chevrolet | Monte Carlo | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1970 | Chevrolet | Nova | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1970 | Pontiac | Acadian | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1970 | Pontiac | Laurentian | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
| 1970 | Pontiac | Parisienne | 7.4L | V8 | N/A | Performance; Tri-Metal (copper lead); with 3/4 Grooves; Standard |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
MB556HPMB556XPMS829H
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.