BRAND: Blueprint Engines

SB Chev 350c.i.d Long Block
310 hp/360 ft-lbs torque, 9.5:1 Comp

Out of Stock
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NOTE: Pictures of Crate Engines are for reference only, engine componenets & accessories are subject to change by manufacture without notice based on availability of parts at time of assembly.

Engine Features

  • HP & Torque: 310 HP / 360 FT LBS
  • Compression Ratio: 9.5:1
  • Cast Iron Heads
  • Flat Tappet Cam
  • Cast Steel Crank
  • Hypereutectic Pistons


  • Hand picked seasoned block
  • Square and parallel decked
  • Align honed main bearing bore
  • Cylinders honed on computer controlled machine to within .0002 straightness and roundness
  • Cylinders are sonic tested for thickness
  • 4-Bolt Main
  • 4.000" Bored .040" Over
  • 1-Piece Rear Main Seal
  • Mech fuel pump provision: Yes
  • Passenger Side Dipstick
  • Drilled and tapped for clutch linkage


  • Cast steel crankshaft 3.480" Stroke
  • OEM type 5.700" connecting rods w/ 150,000 psi bolts
  • Hypereutectic pistons
  • Internal Front/ External Rear


  • BluePrint premium center bolt cast iron
  • Hardened retainers and springs
  • 2.02 swirl polished intake valves
  • 1.60 swirl polished exhaust valves


  • Cam Type: Flat Tappet
  • .480 Intake .486 Exhaust
  • 229 Intake / 230 Exhaust duration @ .050
  • 110 degree lobe separation

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