ARP Connecting Rod Bolts for Ford 1.6L CVH (M8) - 151-6004
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ARP 151-6004 connecting rod bolts are for the Ford 1.6L CVH (M8). Replacing them is almost mandatory when opening an engine that will be running higher power, because the stock bolt is the first thing to fail.
ARP recommends installing them by checking the stretch, between 0.0055 and 0.0060 inches, with a reference torque of 25 lb-ft (about 34 Nm) using their lubricant. It is advisable to measure the stretch of each bolt and replace it if it has been permanently stretched by more than one thousandth of an inch.
Respect the torque and tightening sequence in the ARP instructions, which are calculated for their assembly lubricant; with engine oil, the actual torque changes. If you have any questions about whether this is the correct part number for your engine, write to us with your engine code and year.