Description
ARLOWS BMW E30 M3 4X STEEL CONNECTING ROD SET 144MM S14 (H-BEAM)
Light. Extremely strong. Precision engineered.
Your upgrade for maximum engine performance.
Building your BMW E30 M3 S14 engine for the racetrack or high performance? Then you need connecting rods you can rely on 100 %. The Arlows 4x Steel Connecting Rod Set 144mm S14 (H-Beam) made of high-quality 4340 steel (40CrNiMoA) is exactly the part trusted by professionals in motorsport, tuning and custom builds.
The optimized H-beam design delivers maximum stability at minimum weight. Forged, 3D-designed, CNC-machined, hardened and shot-peened ? perfect for high-revving engines. With bronze piston pin bushings, ultra-strong Pro-Series 14.9 bolts and extremely tight tolerances, you?re perfectly equipped for power levels far beyond stock.
Your advantages at a glance:
- Fits BMW E30 M3 S14 engines
- Forged from 4340 steel (40CrNiMoA) and CNC-machined
- H-beam for maximum stability at minimum weight
- 3D-designed & CNC-machined for optimal load distribution
- Hardened to HRC 35-38 + shot-peened
- Bronze piston pin bushings with lubrication hole
- High-strength Pro-Series 14.9 bolts (1490 N/mm² tensile strength)
- Rolled threads ? 30 % stronger flank strength
- Tight tolerances (±0.004 mm) and weight-matched (±1 g)
- Only 554.8 g per rod (stock 677 g) ? extremely light
Technical Specifications
| Parameter | Value |
|---|---|
| Fits | BMW E30 M3 S14 engines |
| Length | 144 mm |
| Piston pin bore | 22 mm |
| Crank pin bore | 52 mm |
| Upper width | 23.80 mm |
| Lower width | 23.80 mm |
| Weight per rod (incl. bolts) | 554.8 g (stock 677 g) |
| Material | 4340 Steel (40CrNiMoA) |
| Tensile strength | > 1250 N/mm² |
| Max. RPM | up to 9,000 rpm |
| Load capacity | approx. 200 HP per rod |
| Bolts | 3/8" |
MATCHING INTERCOOLER FOR YOUR PROJECT? FIND IT HERE!
Discover the intercooler now| Item number: | AR2290 |