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![BOSS 351 Big Bore Cast-Iron Engine Block for 302 & 351W Builds [9.2 in. Deck]](https://www.jegs.com/images/mini_750/300/397/397-m6010b35192b.jpg)
Vehicle Info NeededFORD PERFORMANCEPART NUMBER: 397-M6010B35192B
BOSS 351 Big Bore Cast-Iron Engine Block for 302 & 351W Builds [9.2 in. Deck]
$2,40125$2668.06You Save$266.81
Ships on 09/15/2026
Lowest Price GuaranteeBOSS 351 Big Bore Engine BlockFord 302 and 351W BOSS Race Builds 9.200 in. Deck Height; 4.12 in. Finished Bore Cast Diesel-Grade Iron with Siamesed Bores Splayed 4-Bolt Main Caps; 2.749 in. Journals 4.00 in. Maximum Stroke
Ford Performance's BOSS 351 big-bore block is a modern replacement for the legendary BOSS castings, giving small-block builders more cylinder wall to work with. Deleting the coolant crossover holes opens room for larger bores in serious race and street builds.
Ford Performance M-6010-B35192BB BOSS 351 Engine Block
- Cast from diesel-grade iron with siamesed bores and a 41,000 psi tensile rating.
- Finished to a 9.200 in. deck height with a 4.12 in. rough bore.
- Splayed 4-bolt main caps on caps 2 through 4 with 2.749 in. main journals.
- Accepts up to a 4.00 in. stroke and is compatible with 302 and 351W layouts.
Big is better, especially when it comes to engines! Ford Racing's Boss 351 delivers big block power in small block form. Designed with extreme precision and constructed from diesel grade cast iron, and featuring siamese bores, thick cylinder walls and decks, these blocks deliver performance superior to any other production Ford production blocks. These block are synonymous with POWER!
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Features
- Deleted Coolant Crossover Holes Between Cylinders Allow For Bigger Bores
- 4.185" Bore Capacity, Finished At 4.12" Rough Bore
- 9.2" Deck Height, Finished At 9.200" Plus .010" to .015"
- Maximum Recommended Stroke 4.00"
- Splayed 4-Bolt Main On 2, 3, 4, Main Caps
- 2-Bolt Main On 1 And 5 Main Caps
- Main Bearing Bores Finished To Low Limit
- 2.749" Main Journal Diameter (Stock 351C Size)
- Finished Lifter Bores
- Machined To Accept Factory Roller Lifter Guides And Lifter Guide Retainer
- Revised Cooling System Passageways
- Increased Bulkhead Material
- Threaded Core And Galley Plugs (Straight Thread Port Plugs With O-Ring)
- Requires Special Length 1/2" Head Bolts M-6065-BOSS
- Designed For The Following Cylinder Heads:
- Not Designed For Production 302/351W Cylinder Heads
- Uses Common OD Cam Bearings M-6261-J351 And M-6261-R351
- Unique Cam Plug Included
- Designed To Be Compatible With The Original 302 And 351W
- Designed To Use Stock Type Timing Cover
- Fits Factory Mustang Oil Pan With Custom Oil Pick-Up Tube M-6622-BOSS302
- Retains Clutch Cross Shaft Pivot Hole
- Original Style Oil Filter Location, Motor Mount Boss Locations, Bell Housing Pattern
Part TypeEngine Block
Product LineFord Performance Boss 351 Cylinder Engine Block
BrandFORD PERFORMANCE
Package Height25.0
Package Width25.0
Package Length30.5
Weight216.0 PG
Part CategoryPerformance Parts
Part FitmentUniversal
Vendor Part NumberM-6010-B35192BB
Package Qty1
Package TypeEA
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