K1 NISSAN. SR-20. 136.25mm 'H' Beam Set

K1 - Conrod Kit

Part: K1 Technologies 033CS17136
Type: Forged H‑Beam Connecting Rod Set
Engine Fitment: Nissan SR20 series engines (e.g., SR20DE / SR20DET) — common in Nissan 180SX / 200SX / Silvia / Sentra / Infiniti G20 vehicles that use the SR‑20 platform. 

Key Specifications

• Rod Length (center‑to‑center): 136.25 mm 

• Rod Type: H‑Beam (strength‑oriented design) 

• Material: 4340 Forged Steel (high strength & fatigue resistance) 

• Pin End Bore: 22.00 mm (fits 22 mm piston wrist pins)

• Big End Journal (Crank Journal Bore): 51.00 mm 

• Main Bearing Width: 22.73 mm 

• Hardware: Comes with ARP 2000 3/8″ rod bolts included 

• Weight: ~524 g per rod (balanced set)

• Wrist Pin Style: Full‑floating bronze bushings for durability & low friction

• Tolerance: Rods are shot‑peened, bore machined to tight tolerances, and weight‑matched within ±1 g per end.

Application / Fitment Notes

• Designed for Nissan SR‑20 engines — including both SR20DE and SR20DET variants found in:

• Nissan 200SX / S13 / S14 / S15 (SR20DE/DET)

• Nissan Sentra SE‑R (SR20DE)

• Infiniti G20 (SR20DE)
  (Based on typical SR20 rod usage — individual retailer fitments list these vehicles with 22 mm pin engines.) 

• The 136.25 mm rod length is a common performance upgrade over stock rods and used in many SR20 rebuilds or higher‑power builds.

Intended Use

These rods are a performance and strength upgrade compared to stock SR20 rods, built for:

• Higher RPM and horsepower applications

• Turbocharged or tuned SR20DET engines

• Street performance or motorsport builds where rod strength is critical K1 Technology

• They are a complete connecting rod set (4 rods) with hardware included, ready to install after proper machining and machine‑shop checks.