- Engines & Components
- Engine Blocks
- Ford Performance Boss 351 Cylinder Engine Block
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
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