Will Pedley Racing Ltd is pleased to announce that we are now stocking the ARP range of performance fasteners for the ST170 engine. BUY NOW – £61.95
ARP Con Rod Bolts
Unquestionably the most important fasteners in any engine are the connecting rod bolts, as they hold the key to the entire rotating assembly.
A broken bolt will lead to catastrophic engine failure. As you can imagine, the most critical joint is where the connecting rod halves mate. The rod bolts must support the primary tension loads caused by each rotation (or cycle) of the crankshaft. When the crank rotates, the big end of the connecting rod essentially becomes oval-shaped and the rod bolts bend. As the crankshaft continues to rotate, the rod becomes round again.
With alternating tension loads and cyclic bending of the bolts, it is very important to install fasteners that are able to exert a clamping force greater than the load imposed upon the joint (tension). In addition to utilizing a rod bolt with sufficient strength to withstand the tremendous cyclical strains placed upon it, it is absolutely imperative that the bolts be properly tightened. For this reason, these bolts are supplied with their own specially formulated moly lubricant.
Please note, these rod bolts are to suit Ford Focus ST170 standard connecting rods, they may fit other variants of the Ford Zetec, but please be aware that we will be unable to accept returns of items purchased in error.
Please contact us with any questions you may have relating to this item.