BLOCK,350 CHEVY,4.125 BORE

Brand New ProComp Cast Iron Chevrolet Small Block Engine Block, 4.125" Bore, Ready-to-Assemble (Part #13104).

Block is finish honed and ready to assemble. Will accept up to 3.750" stroke crankshafts with no additional work and will accept 3.875" stroke crankshafts with a small amount of grinding.

Fits:

• Pre-1986 Chevrolet Small Block 350 V8 Engine with 2-Piece Rear Main Seal

Boring Examples:

• Standard 4.125" bore makes:
  
  • 372" with 3.480" stroke crankshaft
    
  • 381" with 3.562" stroke crankshaft
    
  • 400" with 3.750" stroke crankshaft
    
  • 414" with 3.875" stroke crankshaft
    
  • 427" with 4.000" stroke crankshaft
    

• When bored to .020" over (4.145"), it makes:
  
  • 376" with 3.480" stroke crankshaft
    
  • 385" with 3.562" stroke crankshaft
    
  • 405" with 3.750" stroke crankshaft
    
  • 418" with 3.875" stroke crankshaft
    
  • 432" with 4.000" stroke crankshaft

• When bored to .030" over (4.155"), it makes:
  
  • 377" with 3.480" stroke crankshaft
    
  • 386" with 3.562" stroke crankshaft
    
  • 406" with 3.750" stroke crankshaft
    
  • 420" with 3.875" stroke crankshaft
    
  • 434" with 4.000" stroke crankshaft

• When bored to .040" over (4.165"), it makes:
  
  • 379" with 3.480" stroke crankshaft
    
  • 388" with 3.562" stroke crankshaft
    
  • 409" with 3.750" stroke crankshaft
    
  • 422" with 3.875" stroke crankshaft
    
  • 436" with 4.000" stroke crankshaft

• When bored to .060" over (4.185"), it makes:
  
  • 383" with 3.480" stroke crankshaft
    
  • 392" with 3.562" stroke crankshaft
    
  • 413" with 3.750" stroke crankshaft
    
  • 427" with 3.875" stroke crankshaft
    
  • 440" with 4.000" stroke crankshaft

Specs:

• Weight: Approximately 198 lbs.
• Cam Bearing Bore: 2.00" ID
• Suggested Cam Bearings: Durabond DT-1-1T
• Cam Bearing Press: .002"
• Cam Journal: 1.869" O.D.
• Cam Plug: 2.375" diameter cup plug
• Cylinder Wall Thickness: .250" + at 4.185"
• Deck Height: 9.025"
• Deck Thickness: .625"+
• Fuel Pump: Mechanical pump boss included
• Fuel Pump Pushrod Length: Standard
• Freeze Plugs: Press-in cup style
• Lifter Bores: .842" - .843"
• Main Bearing Bore: 2.641"
• Main Bearing Size: 2.450" (350)
• Main Cap Press: .004" - .006"
• Main Caps: Steel 4 bolt (5)
• Main Cap Bolts: Splayed 8740
• Main Cap Register: Stepped, no dowels
• Oil System: Wet sump - priority main oiling
• Oil Pump Shaft: .481" O.D. (standard SBC 350)
• Oil Pan: Standard SBC
• Rear Main Seal: Standard 2 piece SBC
• Starter: Standard SBC
• Stud Holes: Blind head stud holes
• Timing Chain/Gears: Standard SBC
• Timing Cover: Standard SBC
• Torque Specs: 7/16" bolts - 65 ft. lbs. & 3/8" bolts - 35 ft. lbs.