SBF Rod Bolt Kit - Fits 289-302 w/5/16in

The SBF Rod Bolt Kit - Fits 289-302 w/5/16in from ARP is the foundation of any serious small-block Ford engine build that demands reliability under extreme loads. Whether you're restoring a classic 289 or 302, upgrading a street performer, or building a high-revving competition engine, this rod bolt kit eliminates the weak link in your bottom end. Factory fasteners simply cannot handle the sustained pressures and shock loads of modern fuel, forced induction, or high-RPM operation—rod bolt failure leaves you stranded or worse, catastrophically damages your engine.

ARP rod bolts are precision-manufactured from premium alloy steel and feature a proprietary shot-peening process that dramatically increases fatigue strength and clamping load consistency. The 5/16-inch diameter specification is engineered specifically for small-block Ford rod journals, delivering superior holding power compared to OEM hardware while maintaining proper clearances and stress distribution across the rod cap. Each bolt is individually tested and carries ARP's quality guarantee—critical when you're trusting fasteners to withstand the cyclical stress of thousands of combustion events per minute. The design geometry ensures even load distribution, preventing the micro-yielding and stress concentration that leads to premature failure.

This kit is mandatory for any 289 or 302 engine running above stock specifications—whether naturally aspirated with high compression, turbocharged, supercharged, or nitrous-equipped. Installation requires proper torque specifications and preferably an ARP assembly lubricant to ensure accurate preload, but the process is straightforward for anyone with engine rebuild experience. Pair this rod bolt kit with quality connecting rods and a balanced rotating assembly for peace of mind on the street or strip.