Mr. Gasket Engine Bolt Kit

Mr. Gasket Engine Bolt Kits: Finishing Touches That Mean Business

When you've invested hours assembling a small-block or big-block V8, the fasteners holding it all together deserve the same attention as the parts they secure. Mr. Gasket has been meeting that standard since 1964, when drag racer Joe Hrudka began developing engine hardware that could survive the punishing temperatures and pressures of competition — and look good doing it. Today, that same DNA lives on in the brand's Engine Bolt Kits.

The Flagship: Mr. Gasket Deluxe Engine Bolt Kit (Part #5001)

The centerpiece of Mr. Gasket's engine bolt kit lineup is the Deluxe Engine Bolt Kit (5001) — a comprehensive, all-in-one hardware solution built specifically for Small Block Chevy applications. The kit includes chrome-plated Grade 5 hex head fasteners with AN-type washers covering the intake manifold, timing cover, oil pan, fuel pump, water neck, long water pump, and headers. That breadth of coverage means you can dress an entire engine bay with a single, matched set of hardware rather than hunting down individual fastener packs.

The AN washers are designed with no exposed shoulder, which contributes to a clean, professional appearance — an important detail for show-quality builds and restorations where presentation is just as critical as performance.

Why AN-Type Washers Matter

Not all washers are created equal. Standard hardware-store washers can leave unsightly gaps or uneven clamping surfaces on aluminum components. Mr. Gasket's AN-type washers address this by distributing torque load more uniformly. Hardened flat washers provide uniform torque and prevent galling on aluminum manifolds — a critical consideration on any engine with aluminum intake manifolds or timing covers, which are prone to surface damage from steel fasteners alone.

Grade Ratings and Finish Options

Mr. Gasket offers engine bolt hardware in multiple configurations to suit different builder priorities. The chrome-plated Deluxe Kit is the go-to for engine dress-up and show car builds, while other bolt offerings in the lineup take a more functional approach. Some bolt sets are heat-treated to Grade 8 specifications, zinc-plated for corrosion resistance, and designed specifically for tight-clearance applications like runnered race manifolds. Whether the priority is aesthetics, strength, or both, the product range covers the spectrum.

A Brand Built on Fastener Integrity

Using his own '57 Chevy as a rolling test bed, Joe Hrudka established Mr. Gasket as the go-to source for racers with fasteners that sealed perfectly every time and withstood the punishing temperatures and pressures of racing. That racing heritage translates directly into engine bolt kit designs engineered for real-world durability — not just shelf appeal.

Now an important part of Holley Performance, Mr. Gasket continues to expand application coverage with new products for race cars and muscle cars alike, offering an extensive variety of high-performance parts including chrome-plated accessories to dress up your engine bay.

Whether you're restoring a classic muscle car, building a dedicated drag car, or simply refreshing a tired engine bay, Mr. Gasket Engine Bolt Kits deliver the combination of hardware strength, finish quality, and complete coverage that serious builders expect. Browse the full Engine Bolt Kit category or explore everything Mr. Gasket has to offer.