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  1. Block & Rotating Assem-Molnar-BALANCED-632, Merlin IV Block, H-Beam Rods, Forged Crank & Piston 14.9

    Block & Rotating Assem-Molnar-BALANCED-632, Merlin IV Block, Molnar H-Beam Rods and Forged Crank, Gas Ported Piston 14.9-1

    BKMOL632+42B

    Block & Rotating Assem-Molnar-BALANCED-632, Merlin IV Block, Molnar H-Beam Rods and Forged Crank, Gas Ported Piston 14.9-1 Learn More
    $7,579.00
  2. Block & Rotating Assembly-BALANCED-565 cid, World Block, H-Beam Rod, Forged Crank, Piston 13.6

    Block & Rotating Assembly-BALANCED-565 cid, World Block, H-Beam Rod, Forged Crank, Piston 13.6

    BK565+38B

    Block & Rotating Assembly-BALANCED-565 cid, World Block, H-Beam Rod, Forged Crank, Piston 13.6 Learn More
    $6,750.00
  3. Block & Rotating Assembly-BALANCED-565 cid, World Block, H-Beam Rod, Forged Crank, Piston 10.8

    Block & Rotating Assembly-BALANCED-565 cid, World Block, H-Beam Rod, Forged Crank, Piston 10.8

    BK565+15B

    Block & Rotating Assembly-BALANCED-565 cid, World Block, H-Beam Rod, Forged Crank, Piston 10.8 Learn More
    $6,350.00
  4. Block & Rotating Assembly-Molnar-MerlinIV, Wiseco N2O, XD Rods 1700HP

    Block & Rotating Assem-1700+HP, 632 N2O, Molnar, Merlin IV, XD Rods, Wiseco N2O Piston 14-1

    BKMOL632XD663+40BN2O

    Block & Rotating Assem-1700+HP, 632 N2O, Molnar, Merlin IV, XD Rods, Wiseco N2O Piston 14-1 Learn More
    $7,798.00
  5. Merlin IV Block & Kit

    World Products NEW Merlin IV BBC Sportsman Block Kit - 9.800 Deck - Nodular Caps, ARP Bolts, Cam bearing, freeze plug, dowel kit

    WOR-091102-K

    Merlin IV BBC Engine Block 9.800 deck, ductile main caps Learn More
    $3,612.00
  6. Block & Rotating Assem-Lunati-BALANCED-632, Dart Block, H-Beam Rods, Forged Crank & Piston 10.5

    Block & Rotating Assem-BBC 632, Balanced, Merlin IV Block, H-Beam Rods, Forged Crank & Piston 10.5

    BK632-3B

    Block & Rotating Assem-BBC 632, Balanced, Merlin IV Block, H-Beam Rods, Forged Crank & Piston 10.5 Learn More
    $6,979.00
  7. Block & Rotating Assembly-Molnar-MerlinIV, Wiseco N2O, XD Rods 1700HP

    Block & Rotating Assem-1700+HP, 598 N2O, Molnar, Merlin IV, XD Rods, Wiseco N2O Piston 14.5-1

    BKMOL598XD+45BN2O

    Block & Rotating Assem-1700+HP, 598 N2O, Molnar, Merlin IV, XD Rods, Wiseco N2O Piston 14.5-1 Learn More
    $7,798.00
  8. BBC Pump Gas Short Block

    BBC Short Block Assembled- 565cid 10.6-1 MerlinIV block, Molnar crank & Rods, Mahle pistons IN STOCK

    SHBBBC565+13B

    BBC 565cid Short Block, Assembled 10.6-1 IN STOCK Learn More
    $8,995.00
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Material
  1. 4340 (2)
  2. Cast Iron (4)
Make
  1. Chevy Big Block (6)
Compression
  1. 10:1 to 10.9:1 (3)
  2. 13:1 to 13.9:1 (1)
  3. 14:1 to 14.9:1 (3)
Block Material
  1. Cast Iron (8)
Block Brand
  1. World Products (8)
Block Model
  1. Merlin IV (8)
Price
  1. $3,000.00 - $3,999.99 (1)
  2. $6,000.00 - $6,999.99 (3)
  3. $7,000.00 - $7,999.99 (3)
  4. $8,000.00 and above (1)
Rod Beam Type
  1. H-Beam (4)
  2. XD Xtreme Duty H-beam (2)
Cubic Inch
  1. 565 (2)
  2. 632 (4)
Crankshaft Stroke
  1. 4.250" (2)
  2. 4.500" (1)
  3. 4.750" (3)
Bore Size
  1. 4.600" (6)
Rod Length
  1. 6.385" (2)
  2. 6.635" (1)
  3. 6.660" (1)
  4. 6.700" (2)
Manufacturer
  1. Molnar Technologies (3)
  2. USA Performance Parts (2)
  3. World Products (3)
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