ZRP HD Series forged connecting rods are designed for the BMW M5 engine with the S63B44 designation and a 4.4-litre displacement. They are intended for use as a higher-performance replacement for the original connecting rods during an engine upgrade or rebuild.
Specifications
- Engine: BMW S63B44, 4.4 l
- Design: I-beam
- Bolts: ARP2000, 3/8″ thread
- Specified dimensions: 22.00; 57.60; 138.50
- Part number: 4.4L M5 V8 S63
Suitable for: BMW 5 II (E34).

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