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Block & Rotating Assem-BALANCED-421, 18°, Dart SHP PRO Block, H-Beam Rod, Diamond piston 13-1

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  • Block & Rotating Assem-BALANCED-421, 18°, Dart SHP PRO Block, H-Beam Rod, Diamond piston 13-1

Block & Rotating Assem-BALANCED-421, 18°, Dart SHP PRO Block, H-Beam Rod, Diamond piston 13-1

BKPRO421R-18-6B

Availability: In stock

$4,298.00
OR

Details

Block & Balanced Rotating Assembly - 421 cid, fits 18° heads, Dart SHP PRO Block, H-Beam Rod, Forged Crank & Diamond Pistons 13.0-1

These 421 cid Dart SHP PRO Block and Balanced Rotating Assemblies for 18 degree heads offer race proven quality components at a greatly reduced package price. Dart SHP PRO blocks with steel caps, .904 lifters & BBC cam, forged 4340 crankshafts, H-beam Stroker rods, forged Diamond pistons and file fit rings are standard in these popular combinations.

  • 421 cubic inch
  • 4.155 bore x 3.875 stroke
  • Also available with 4.125 bore for 415 cid
  • Dart SHP PRO Block - 9.025 deck
  • SHP PRO blocks have steel billet main caps, main studs, .904 lifters and BBC cam tunnel
  • 4340 Forged Crankshaft by Scat - 350 or 400 mains
  • Scat H-beam Stroker rods w/ARP2000 bolts = 1100HP
  • Diamond Forged -6cc Flat Top Pistons
  • Fits 18 degree heads ONLY
  • Comp ratio 55cc = 13.0 to 1
  • File Fit steel moly rings .043 x .043 x 3mm
  • Coated & grooved cam bearings
  • Clevite H Series rod & main bearings
  • Precision Balanced
  • Brass freeze plugs & steel cam plug

Other Combinations Available - Custom Assemblies our Specialty - Please Inquire

Hundreds of stroke & bore combinations available

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Additional Information

Manufacturer Dart