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Vehicle Info NeededCHEVROLET PERFORMANCEPART NUMBER: 809-12480049
350 Cast Iron Bow Tie Sportsman Competition Block (400 Mains)
$3,13007
Truck Freight
Ships on 09/16/2026
Lowest Price Guarantee350 Blocks
- 350 Bow Tie Sportsman Block
- CNC-machined cast iron competition block
- 4-bolt nodular mains (splayed caps on center 3 mains)
- 3.980" finished bore
- 400 Main Size
- Tall lifter bores
- 2-piece rear main seal
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Part TypeEngine Block
BrandCHEVROLET PERFORMANCE
Package Height17.0
Package Width19.0
Package Length553.21
Weight225.0 PG
Part CategoryPerformance Parts
Overall Width (In)17.02
Cylinder Bore As Shipped3.98 in (101.092 mm)
Oiling TypeWet
Casting Number10051184
Seal Type2 pc
Freeze Plugs IncludedNo
Deck Height (In)9.025"
Main Bolt Style4-bolt
Deck Height9.025 in (229.235 mm)
Fuel TypeGas
Main Cap MaterialDuctile iron
Main Bearing Cap Bolt Quantity4
Rear Main Seal Style2-piece
Main Caps IncludedYes
Cylinder Bore Diameter101.092
Main Journal Type400 mains
Engine Block StyleStock/OEM standard Deck
Engine Block MaterialCast iron
UsageAmateur
Engine Block Weight (Lbs.)180
Overall Width (Mm)432.3
QuantitySold individually
Raised Cam LocationNo
MaterialCast Iron
Main Bearings IncludedNo
Standard Or Reverse RotationStandard
Block Casting Number10051184
Maximum Horsepower (Hp)500
Cylinder Quantity8
Cap MaterialNodular
Finished Cylinder BoresNo
Cam Bearings IncludedNo
Part FitmentSemi Universal
Main Cap Fasteners IncludedYes
Weight (Lb)208
Grade TypePerformance
Vendor Part Number12480049
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
