Dart Big M Fully Machined Bare Block
Machined Blocks

Dart Big M Fully Machined Bare Block $4,895


Dart Big M Fully Machined Bare Block

9.800" / 9.855" / 10.200" Deck Heights Available

4.500" to 4.625" Bore Sizes Available

PRICE INCLUDES DELIVERY TO A
COMMERCIAL ADDRESS TO THE 48 STATES

Dart Big M
Fully Machined
Bare Block
$4,895

Having A Hard Time Locally Sourcing The Correct Dart Block For Your New Build Or Repair?

Having An Even Harder Time Finding A Local Machine Shop To Fully Prep And Precision Machine Your Block For Final Assembly??

We Can Solve Both Of These Problems And Save You Time And Money To Boot!

Call Us To Discuss The Specifics Of Your Build and Any Additional Components That You Might Need.



14 DAY TURNAROUND
For Most Blocks

  • Dart Big M Sportsman Style Cast Iron Block
  • 4 Bolt Splayed Nodular Caps
  • Dart Coated Cam Bearings
  • Dart Threaded Brass O-Ring Style Oil Gallery Kit
  • +.300" Tall Style Lifters Required
  • 2 Piece Rear Main Seal
Labor and Machine Work Performed
  • Thoroughly Inspect Block
  • Deburr Block and Hand Chamfer Lower Cylinder Sleeves
  • Square Mill Deck To Your Spec w/Rottler F68A
  • Diamond Honed To Your Spec w/Rottler H85AX & Verified With Profilometer
  • Line Hone Mains To Spec w/Sunnen CH100
  • Measure and Hone Lifter Bores To Spec w/Rottler H85AX
  • Hand Brush and Clean All Oil Gallerys Followed With A Full Pressure Wash
  • Install Dart Coated Cam Bearings and Test Fit Cam
  • Install Bellhousing, Timing Cover, Cylinder Head and Oil Pump Dowels
  • Install New Brass Freeze Plugs
  • Footnotes:
  • 9.800" Blocks Notched For 4.375" Stroke w/Steel Rods. Notching For Other Strokes Available.
  • 10.200" Blocks Notched For 4.500" Stroke w/Steel Rods. Notching For Other Strokes Available.
  • Clearances Must Be Checked Before Final Assembly.
  • Final Wash Required Before Final Assembly.
Shafiroff Racing Engine Options
Blocks
Dart Steel Billet Main Cap Upgrade $600
Machine Block for .904 Lifters (for .937 - Call) $350
Machine Block for Large Core (55MM) Camshaft $350
O-Ring Block w/Stainless Steel Wire (requires copper head gaskets) $275
Additional Block Notching Charge (for larger strokes or optional components) From$100
Machine Block and Install Stainless Steel Lifter Valley Screen Kit $125
Dart Inner Valley Stud Kit (Improved Head Gasket Sealing) $95