BBC 461-468ci Street or Marine Short Block

BBC 461-468ci Street or Marine Short Block


This short block is a direct replacement street or marine grade totally reconditioned on a Centroid 4-Axis CNC machining center to a blueprint perfect finish better than new short blocks. Acceptable to 400 hp with no power adders and are pump gas friendly with brass or stainless steel freeze plugs for marine applications and NO CORE REQUIRED

Core block hot tanked • Align honed (ind) • CNC blueprint bored • CNC blueprint square decked 90° from crank and cam bar • Plate honed up to 4.310″ Bore • Hot washed, Brass freeze plugs and cam bearings installed • Assembled with the rotator listed below (ie 4.310 x 4.310 bore x 4.000 stroke x 8 x .7854 = 468ci) NOTE, Dead on 45° bores and deck surfaces can only be machined with a 4 axis CNC machine to know where proper angles are off the cam and crank. Its impossible with a 3 axis machine and down right dirty with old boring bar technology.

GM 4.000″ Recondition Cast Crank (454 dampener and flexplate or flywheel required externally balanced) Balanced on a CWT Multi-Bal 5000 Machine to .20 oz­ ­• AwesomeEngines® 6.135″ I Beam Steel Rods Reconditioned with ARP Rod Bolts • Up to 10.5:1 Compression Speed Pro or Federal Mogul Pistons • Moly Rings • Clevite or King Cam, Main and Rod Bearings • Rear Main Seal


Dart M-IV 31243344 Marine or Pro Street Full Water Series new High Performance Block (1 piece ava)
+ $1895.00
Scat 9000 Series 4.250″ Stroker 496 ci Crank, Radial Clearance Block, Special Pistons and Balance Job
+ $ 695.00
4340 Internally Balanced Steel 4.000 or 4.250″ Stroke Scat Crank and Scat New I Beam 7/16 Rods
JE SRP or WISECO PRO TRUE Forged Pistons with JE or WISECO Ring Set
+ $ 595.00
Scat 6.135 or up to 6.385″ I-Beam Rods with ARP Rod Bolts for Either Engine
+ $ 195.00
Scat 6.135 or up to 6.385″ H-Beam 4340 Rods with ARP 8740 Rod Bolts for Either Engine
+ $ 295.00
565ci 4.600″ Bore Pro Series Version Forged 4340 Crank and Rods and JE SRP or WISECO PRO TRUE Pistons with a new Dart Big M or World Race Block
+ $2595.00
COMPETITION CAMS Magnum Flat Tappet Cam Shaft Kit Installed with Flat Tappet Lifters and Double Roller Timing Set
+ $ 395.00
COMPETITION CAMS .600″ Pro Street Hydraulic or Solid Roller Camshaft Kit, Roller Lifters, Billet Roller Timing Set, Degree Cam to Intake Valve Opening
+ $ 775.00
Deluxe Short Block Kit Below
+ $1375.00
Comp Cams Drag Race Short Travel (DRST) Racing Hydraulic Roller Lifters and Cam for Complete Long Short Block
+ $ 825.00
Comp Cams HIPPO BUSHED Solid Roller Lifters for Complete Long Short Block
+ $1025.00

Cam Shaft Kit

  1. COMPETITION CAMS Magnum Flat Tappet Cam Shaft Kit Cams Installed
  2. Double Roller Hi-Performance Timing Chain and Gear Set Installed
  3. Professionally Degree Camshaft for the Proper Intake Valve Opening Events
  4. COMPETITION CAMS Camshaft, COMPETITION CAMS Lock Plate Kit Installed

Deluxe Short Block Kit

  1. Your Choice of Cam Kit
  2. Polished Aluminum Timing Cover
  3. AwesomeEngines® Billet Timing Pointer
  4. ATI Super Damper is now Standard in Deluxe Kit
  5. Moroso Oil Pump and Proper Pick Up Tube Kit For Pan
  6. Moroso 7 Quart Winged Drag Race Stroker Oil Pan Installed
  7. Timing Cover, Front Seal, One Piece Rubber Stroker Oil Pan G
  8. Deluxe Short Block Kit Professionally Installed, Oil Pump Primed
  9. Short Blocks Come with Blue Print and Balance Sheet, Product Info, Stickers and Contingency Information

    Some Components May Be Subject To Change of Equal Value Due To Availability. Free Freight Applies up to $200 on This Advertised Item Shipped To A Commercial Address or The UPS Terminal Closest To Your Zip Code For Pickup In The 48 States. Any Charges Over $200, Residential, Out-Of-Area, Lift Gate Service, Difficult Handling Fees, Extra Insurance, Apply If Requested.

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