Rear Main Cap Support Strap - SBC

The Rear Main Cap Support Strap for Small Block Chevy (SBC) from HOWARDS RACING COMPONENTS is a critical reinforcement component designed to prevent catastrophic crankshaft failure in high-performance engines. Built for enthusiasts and mechanics who demand reliability under extreme load conditions, this strap addresses a known weakness in the SBC platform: the tendency for the rear main bearing cap to shift or lift under sustained boost, high RPM, or high-torque applications. Whether you're running a supercharged stroker, a turbocharged street engine, or a race-prepped combination, this support strap provides essential structural integrity where it matters most.

This strap works by clamping the rear main cap to the block, controlling deflection and preventing separation that can lead to oil weeping, bearing wear, and ultimately catastrophic block damage. The design is straightforward and proven: precision-engineered steel construction with robust mounting points that integrate seamlessly into the existing SBC architecture. Weighing just 0.91 lbs and measuring 7.2 inches in length with a 3 by 1.5 inch footprint, the strap maintains a low-profile installation while delivering maximum mechanical advantage. Its compact footprint makes it compatible with tight engine bay configurations and aftermarket pan designs without requiring major modification.

This component is essential for any Small Block Chevy running forced induction, nitrous oxide, or aggressive naturally aspirated builds. Engine builders and professional mechanics routinely specify rear main cap support straps as insurance against the unpredictable forces generated by high-output combinations. Installation is straightforward and requires only basic hand tools, making it an accessible upgrade for both professional shops and dedicated home builders. For anyone serious about long-term reliability and durability in performance SBC applications, the Rear Main Cap Support Strap represents a proven, cost-effective solution that has protected countless engines at the drag strip, road course, and street.