Forged H-Beam Connecting Rods+ARP Bolts compatible for BMW E30 M3 S14B23 1988-1991 L4 144mm

Compatible Vehicles

• Compatible for BMW E30 M3 S14B23 2.3L L4：
• Compatible for BMW M3 E30 1988 Coupe (2.3L S14B23 - Floating Pin Piston)
• Compatible for BMW M3 E30 1989 Coupe (2.3L S14B23 - Floating Pin Piston)
• Compatible for BMW M3 E30 1990 Coupe (2.3L S14B23 - Floating Pin Piston)
• Compatible for BMW M3 E30 1991 Coupe (2.3L S14B23 - Floating Pin Piston)
• Compatible for BMW M3 Evolution II E30 1988 Coupe (2.3L S14B23 Evo II - Floating Pin Piston)
• Compatible for BMW M3 Cabriolet E30 1988-1991 Convertible (2.3L S14B23 - Floating Pin Piston)

Specification

• Beam Style: H-beam Street/Strip
• Material: 4340 Chromoly Steel
• Finish: Shot-peened
• Wrist Pin Style: Floating
• ClearancedFor Stroker: Yes
• Cap Retention Style: Through-bolt
• Connecting Rod Bolt Brand: ARP
• Connecting Rod Bolt Diameter: 3/8"
• Connecting Rod Bolt Material: Alloy Steel
• Fastener Yield Strength (psi): 220,000 psi (ARP 2000)
• Upgrade Fasteners: ARP L19 (260,000 psi) optional
• Connecting Rod Bolt Head Style: 12-point
• CNC Machined: High Precision
• Rod Cap Alignment: Precision dowels
• Bore Tolerance: ±0.005 mm
• Balancing: ±1 gram per rod
• Weight Matched Set: Yes
• Remanufactured: No
• Testing: Magnafluxed, X-rayed, Ultrasonically tested
• Heat Treated: Yes

Dimension

• Connecting Rod Length Centre to Centre: 144.00mm / 5.669in
• Approximate Connecting Rod Weight:549g
• Big End Bore Diameter: 52.00mm / 2.047in
• Pin End Bore Diameter: 22.00mm / 0.866in
• Big End Width: 24.00mm / 0.945in
• Small End Width: 24.00mm / 0.945in

Feature

• 1.Premium 4340 Forged Steel & H-Beam Design (Built for High-Horsepower)
• Engineered from aircraft-quality 4340 chromoly steel with a classic H-beam profile. Fully shot-peened and heat-treated to ensure maximum tensile and compressive strength. Perfect for high-load street and strip (1/4-mile drag) racing applications.
• 2.Genuine ARP 2000 Bolts Included (Optional ARP L19 Upgrade Available)
• 100% packed with authentic ARP 2000 12-point bolts boasting a 220,000 psi yield strength. Also offers an optional upgrade to 260,000 psi ARP L19 fasteners, completely eliminating rod-cap separation at extreme high-RPM loads.
• 3.Factory-Balanced within ±1.0 Grams (Engineered for High-RPM Stability)
• Every single set undergoes dynamic balancing at the factory to maintain a strict weight variance of less than 1.0 grams per set. This precise QC standard ensures smooth power delivery and minimizes harmful harmonic vibrations at high RPMs.
• 4.Triple Non-Destructive Testing & Floating Pin Style (Race Ready)
• 100% magnafluxed, X-rayed, and ultrasonically tested to guarantee compatible for zero internal flaws or cracks. Features a high-lubrication bronze bushing for floating-style wrist pins, making it fully compatible with premium aftermarket forged pistons.
• 5.TS16949 / IATF 16949 Certified Facility (Standardized Production Control)
• Manufactured in a facility that has achieved the TS16949 (IATF 16949) automotive quality management system认证. This compliance ensures that our components follow standardized production, testing, and engineering workflows required for automotive manufacturing.

Performance Ratings

• Advertised Horsepower Rating: 200HP/piece
• Advertised RPM Rating: 9,000rpm

Package included

• Quantity: Sold as a set of 4
• Package Size: 28CM*20CM*10CM