Wossner Steel Connecting Rods
All Wossner Forged Con Rods are made in Germany. Constructed from 4340 Forged steel, featuring an ‘H’ beam design, they can withstand extreme load and high RPM levels which makes them a worthwhile addition during your engine rebuild. They are supplied as matched full engine sets within +/- 1.5grams and include ARP Bolts.
PEC Steel Connecting Rods
PEC’s own in house design facilities are able to create many different components but for nearly 10 years now, it’s our connecting rods that have helped set us apart from the competition in terms of availability, ease of fitment and size of range.
Manufactured from forgings originally produced in Sweden, PEC connecting rods have
offered engine builders and tuners a cost efficient and yet high performing solution to a wide variety engine building problems.
H-Beam and I-Beam section connecting rods are forged from AISI 4340 (En24) steel. Heat treated to HRC 35-38 and then shot peened for higher fatigue strength. Small ends are bushed for a fully floating pin and big ends are fitted with high quality ARP fasteners with different specification bolts available depending on the level of performance required.
PEC Connecting rods have been designed, manufactured and tested to the highest levels of scrutiny before being released to the trade and the public alike and their success record speaks for itself.
PEC rods are designed to withstand roughly 225hp per cylinder (typically 900hp on most 4cyl engines) and on the ARP 2000 series 3/8 bolts normally provided & have an 8,500 RPM safe operating limit (engine specific).
In some cases, we recommend using the ARP 625 custom age bolts available from us. This increases the hp threshold to 250hp per cylinder and raises the RPM limit to 9,000 however as every engine is different, these numbers are not guaranteed for every configuration.
Prolonged high RPM’s for drifting, or sudden bursts of torque for drag racing (as two examples) will warrant the use of the custom age bolts to help retain the clamping force between the big end cap and the connecting rod.
If in doubt, please contact us for advice.