Hasport Universal K-Series Block Bracket

Whether you have a K20 or K24 engine, Hasport makes a billet aluminum block bracket to help with your swap. This universal bock bracket works with all K20A/Z and K24A/Z blocks when used with most of our K-series mount kits.

Note: This bracket comes with M12x1.25 threads on the top. If you have a "Z" block with M14 threads, you can either switch to M12 bolts + some 12mm to 14mm spacers, or select our CNC machined option. We enlarge the threads to M14x1.5 using our in house CNC mill, which will work with the factory Honda M14 bolts.

Selecting the correct mount stiffness is critical to getting the performance feel you're after — whether you're daily driving or building a track-focused machine. Hasport offers several durometer options, each tailored for a specific use case. When selecting motor mounts it is critical to be aware of NVH alterations, as each enthusiast has a different preference and tolerance to increases in NVH.

• Use Case: Daily Driving / Mild Bolt-ons
• Feel: Upgraded OEM+ feel with minimal vibration

The softest polyurethane Hasport offers, 62A is ideal for street-driven cars that want improved engine control without sacrificing comfort. It helps reduce wheel hop and adds a bit more drivetrain response while keeping interior NVH low — perfect for daily drivers or bolt-on builds. These are the softest aftermarket mounts you can purchase.

• Use Case: Street / Aggressive Street / Light Track
• Feel: Tighter chassis response with moderate NVH

70A mounts strike a solid balance for enthusiasts who want sharper shifting and better throttle response, especially under load. While you'll notice more vibration at idle and low speeds, it's very tolerable and ideal for dual-purpose street/track setups or cars with mild power upgrades. Not recommended for comfort-focused drivers.

• Use Case: Track Days / Drag Racing / High Power Builds
• Feel: Locked-in drivetrain with strong vibration

With a major jump in rigidity, 88A is the go-to for high-output engines or cars seeing regular track abuse. Vibrations are very noticeable, especially at idle, but the gains in drivetrain stability and launch consistency make them worth it for hardcore builds. Not recommended for comfort-focused drivers.

• Use Case: Race Cars / Extreme Track Use
• Feel: Maximum stiffness, race-grade vibration

94A mounts are designed for maximum torque control and zero drivetrain deflection. Ideal for full-time race vehicles, these mounts will transfer heavy NVH into the cabin. Great for drag or time attack cars — not suitable for street use unless you're completely immune to vibration. Not recommended for comfort-focused drivers.

Final Note: All Hasport mounts are CAD-designed, precision-machined, and built in the USA with billet aluminum brackets and premium-grade polyurethane inserts. Their mounts are backed by a lifetime manufacturer's warranty. No matter which durometer you choose, you’re investing in the best-engineered motor mount solution available today.