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4.450'+.040 Billet Aluminum Connecting Rod For Honda GX340 390 For Predator 420 Engine

4.6 (1) Write Review
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$90.99

$ 37 .99 $37.99

In Stock
  • Fitment: For Honda GX340 390 420 Engine Go Kart Mini Bike.4.450" center to center for a 1.416" crank pin and a .788" wrist bore.Note that the minimum clearance between piston and head is 0.030".
  • Package Includes: 1*Connecting Rod,2*Bearings.
  • Strength improvement: Use more durable materials to improve bolt strength and avoid bolt breakage.
  • Bolts can reach 170 inches/lb.Uses 5/16" rod bolts.Use an inch pound torque wrench with a 1/4″ 12 point socket.
  • Installation method: The product contains a manual with detailed installation steps. Please strictly follow the manual to avoid product damage.


Fitment: For Honda GX340 390 420 Engine Go Kart Mini Bike.4.450" center to center for a 1.416" crank pin and a .788" wrist bore.Note that the minimum clearance between piston and head is 0.030". Package Includes: 1*Connecting Rod,2*Bearings. Strength improvement: Use more durable materials to improve bolt strength and avoid bolt breakage. Bolts can reach 170 inches/lb.Uses 5/16" rod bolts.Use an inch pound torque wrench with a 1/4″ 12 point socket. Installation method: The product contains a manual with detailed installation steps. Please strictly follow the manual to avoid product damage.


Bruce Allen
Reviewed in the United States on January 30, 2025
after i installed my billet parts i just kept feeding the engine nitrous and i just couldnt blow the engine. def worth themoney and you can certainly expect it to hold up. if i was able to change one thing about the product, it would be for the seller to include plati gauge. its kind of a necessity for proper installation. other than that..... 5 stars across the board!