DART Chevy SBC 400 B-4.125 M-400 DH-9.025 4-Bolt Billet Main Bare Iron Engine Block


      • Chevy SBC 400 B-4.125 M-400 DH-9.025 4-Bolt Billet Main Bare Iron Engine Block
      • Fitment and Product Information:


        Engine - SHP - Bare Block - 4.125 in Bore - 9.025 Deck - 350 Main - 4-Bolt / 2-Bolt Main - 2 Piece Seal - Iron - Small Block Chevy - Each

        Brandname: Dart

        Part Number: 31161211

        Product Details:


        Dart SHP Special High Performance small block Chevy cast iron bare blocks are designed for high performance and heavy duty applications. These SPH blocks are an ideal starting point for hot rodders, drag racers, circle track competitors, off-roaders and high performance marine enthusiasts.


        Key features of SHP small block Chevy bare blocks are:

        • Priority main oiling system
        • Siamese cylinder bores with extra-thick walls
        • Extra thick decks to ensure reliable head gasket seal
        • Blind head bolt holes (don't go through water jacket)
        • Scalloped water jacket walls for improved flow around cylinders for better cooling
        • Clearance for 3.75 in. stroke with steel rods
        • Splayed outer bolts on middle main bearing caps
        • Provisions for ORG.MFR stock roller lifters and cams
        • All ORG.MFR bolt holes starter, clutch ball, etc.
        • Uses 1981 to 1985 stock style oil pan and passenger side dipstick
        • Uses stocked stamped steel or plastic timing cover


        • Part Type: Engines, Bare Blocks
        • Product Line: Dart SHP Special High Performance Small Block Chevy Cast Iron Bare Blocks
        • Main Journal Type: 350 mains
        • Engine Block Style: Aftermarket
        • Deck Height (in): 9.025 in.
        • Cylinder Bore as Shipped: 4.115 in.
        • Cylinder Bore Diameter: 4.125 in.
        • Maximum Bore Diameter: 4.165 in.
        • Engine Block Material: Cast iron
        • Engine Block Weight (lbs): 175 lbs.
        • Main Bolt Style: 4-bolt
        • Main Caps Included: Yes
        • Main Cap Material: Ductile iron
        • Main Cap Fasteners Included: Yes
        • Main Bearings Included: No
        • Rear Main Seal Style: 2-piece
        • Finished Cylinder Bores: No
        • Raised Cam Location: No
        • Cam Bearings Included: No
        • Freeze Plugs Included: No
        • Quantity: Sold individually.
        • Notes: Uses 1981-85 stock style oil pan and dipstick. DRT-32210020 cam bearings are required. Block bores are 0.010 in. undersized to allow for piston set up.



        The 90 Day Warranty: 



        offers a 90 day warranty against manufacturer defects on all items we sell! Additionally, most new items come with a seperate manufacturer warranty. 

    • Cast from premium high-strength Class 32B iron
    • Standard deck height allows the use of off the shelf parts
    • Uses standard small block Camshaft, Timing Chain, Oil pump, Oil filter, Motor Mounts.
    • Priority main oiling system directs oil to main bearings
    • Blind tapped head bolt holes prevent water leaks
    • Extra thick decks ensure reliable head gasket seal
    • Billet steel 4-bolt main caps (splayed for extra strength)
    • Front and rear external oil feed, crossover and restrictor provision
    • Simplified plumbing for external pumps
    • Used in 1500+HP Applications
    Item Condition: Brand New

Brand please note free shipping usa mainland only

excluding alaska puerto rico hawaii  all the islands all pay extra 

Disclaimer : Quantico Cylinder Heads Inc. is in no way affiliated with any OEM manufacturer. All OEM part numbers and logos are used for identification purposes only. Please inspect the parts that you ordered before installation.