Lukovich Racing Engines - Call 586-421-0000 - Open Weekdays 9am - 6pm, Sat 10am-4pm EST
Car Setup Form Contact Us Racing Parts Racing Engines Chevy Rotating Assemblies Racing Cylinder Heads Racing Blocks Racing Short Blocks

Home > Racing Blocks > Dart Big Block Chevy Big M
 Dart Big M Racing Block Chevy
Starting at $2122.10
Plus shipping
"Ready to Assemble" Race Prep 
& Finish Hone Available!
 

Dart Cast Iron Big M Blocks

Dart Big M Blocks

 
"BIG M" IRON BIG-BLOCKS
PN REFERENCE
DART PN
Deck Height
Bore
31263344
9.8004.250
31263354
10.2004.250
31263444
9.8004.500
31263454
10.2004.500
31263644
9.8004.600
31263654
10.2004.600

Dart Big M Big Block Chevy Block

If you're ready to build a bad to the bone Big Block Chevy then don't you owe it to yourself to base your combo on the best engine block available? Then look no further than the Dart Big M - the standard platform most racing winning BBC engines use!

Features

  • Made in the USA
  • Brand new precision machined block
  • Premium high strength cast iron
  • Available in 9.8 or 10.2 deck heights
  • Priority main oiling system oils all of the main bearings before the lifters
  • Siamesed extra thick cylinder walls resist cracking and improve ring seal
  • Blind head bolt holes
  • Oil filter boss drilled and tapped for external oil pump lines
  • Can clear 4.50 stroke crank with steel rods with no grinding
  • Two additional head bolt bosses on each side of lifter valley
  • Splayed 4 bolt center three main caps
  • All OE bolt holes for starter, clutch ball, etc.

Options

Also available as a ready to assemble package from Lukovich Racing Engines with finish honing, with complete or partial rotating assembly, or in assembled short block and long block combinations.

Dart Big M Big Block Specifications


Material:Superior Cast Iron Alloy
 Bore:4.250" to 4.500" (max 4.630")
 Stroke:4.750" max
 Cubic inch: 632" (max recommended 4.625" bore x 4.750 stroke")
 Cam bearing bore ID:2.120"
 Camshaft position: Standard
 Cam Drive: Timing chain, Gear drive & Belt drive
 Cam Bearings:Special coated, grooved, w/3 oil holes (Not included)
 Cam Bearing O.S. : +.010", +.020", +.030"
 Cam Bearing Press: .002"
 Cam Journal OD: 
 Cam Plug:Standard BBC 2.215" diameter
 Cylinder Wall Thickness: .300" min # 4.625"
 Deck Height: 9.800" & 10.200"
 Deck Thickness: Adequate for all applications
 Fuel Pump:Mechanical pump provision
 Fuel Pump Pushrod:Std. BBC
 Freeze Plugs:Press in cup plugs
 Lifter Bores: BBC .8427" - .8437"
 Main Bearing Size: Std. BBC
 Main Bearing Bore:2.937" - 2.938"
 Main Caps:Steel Billet or Ductile Iron (Sportsman)
 Main Cap Bolts:4 bolt
 Oil System: Wet or Dry Sump - Main Priority Oiling Oil Galley, main: Stepped, 9/16" - 1/2" - 7/16" Oil Galley, filter main: 5/8"
 Oil Pump Shaft: 
 Oil FIlter:Stock oil filter location
 Oil Pan:Standard pan bolt pattern, extra bolt holes provided for strokers
 Rear Main Seal: STD 2 pc seal / Fel-Pro# 2918
 Serial Number:On main caps
 Starter:Mounts in standard location
 Stud Holes, Head:Blind holes Head: Timing chain/gears
 Timing Cover:Stock Cover
 Torque Specs:All 1/2" bolts - 105 lbs
 Weight:4.250 bore (280lbs) - 4.500 bore (260lbs) 4.60 bore (250lbs)

 

 

 

 

© Lukovich Racing Engines 317-718-8250