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Dart Special High Performance Chev SB Iron Block - $2,750 (Englewood)
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Cast from high nickel iron for superior strength, and features Siamese cylinders with 4.125" standard bore sizes and can safely be bored to 4.165". Cylinder walls are a minimum of .230" thick at 4.165" bore. Machined using precision digital CNC equipment and is virtually ready to assemble right out of the box after a final cylinder hone. Decks are parallel within .002", lifter bores, cam and main tunnels are finished. Designed for compatibility with stock components, so no costly special parts are required for assembly.
• Premium high strength, high nickel cast iron
• Splayed 4-bolt center three main caps
• Priority main oiling system
• Blind head bolt holes
• Siamese bores 4.125" (unfinished)
• At 4.165" bore cylinder walls are .230" thick
• Clearance for 3.75" stroke w/steel rods
• Decks are even and parallel within 0.002"
• 350 main journals
• Two piece rear main seal
• Provisions for OE stock roller lifters and cams
• Uses 1981-85 stock style oil pan and dipstick
• Uses stock stamped steel or plastic timing cover
• All OE bolt holes for starter, clutch ball, etc.
• Made in the USA
• Brand new precision machined block
Part Type: Engine Block
Application: Chevrolet Small Block
Engine Block Style: Aftermarket
Engine Block Material: Cast Iron
Main Journal Type: 350 Main
Deck Height: 9.025"
Cylinder Bore Diameter: 4.125"
Finished Cylinder Bores: No
Main Caps Included: Yes
Main Cap Material: Ductile Iron
Main Bolt Style: 4-Bolt
Main Cap Fasteners Included: Yes (#1 & #5: 7/16", #2, #3, #4, 3/8" Splayed)
Lifter Bore Diameter: .842" (Must use .300" taller lifters if using link bar lifters)
Provisions for OE Roller Lifters: Yes
Main Bearings Included: No
Rear Main Seal Style: 2-Piece
Oil Pan Rail Type: Stock/OEM
Raised Cam Location: No
Cam Bearings Included: No
Freeze Plugs Included: No
Manufacturer: Dart Machinery
Manufacturer's Part Number: 31161211
Weight: 175.0 lbs.
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