Boostline Rod Set for Honda B18C 138mm ARP +625

  • Length: 138.0mm
  • Pin Diameter: 21mm
  • PE Width:
  • BE Width: 21.72
  • Housing Bore: 48.011
  • Bolt Size: 3/8″
  • Bolt P/N: BT61501-625
  • Gram Weight: 570




SKU: HN5433-827+ Categories: , , Tags: , , , , ,


BoostLine connecting Rod Set for Honda B18C are designed from the ground up for high-power forced induction and nitrous applications. A patented, 3-pocket design, forged from premium 4340 steel, maximizes strength while minimizing rotating weight. This revolutionary design dramatically improves the rod’s big-end stability under tensile loads and provides a 60% improvement in bending strength and 20% stress reduction in tension compared to H-beam designs. All of these benefits make BoostLine rods ideal for high-cylinder pressure engine combinations.

Applications: Honda B Series Engines

Boostline Rod Set for Honda B18C Specs:

Big End Width 21.72
Bolt Diameter 3/8
Bolt Part Number BT61501-625
Center To Center Length 138.00
Journal Size 45.00
Main Bearing Bore Diameter 48.011
Material Forged 4340 Steel
Pin End Bore 21.00
Product Types Connecting Rod Kits
Rod Type I-Beam
Wrist Pin Journal Bushing Width 22.86



BoostLine connecting rods are the first, purpose-built rods for power-adder applications. Their patented 3-pocket design was specifically engineered for demanding turbocharged, supercharged, and big nitrous applications, and provides 60 percent more bending strength compared to common H-beam rods!

Additional information

Shipping Weight 5.5 lbs
Shipping Dimensions 11.25 × 4.75 × 6.5 in
Part Type


Car Make



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