BLOX Racing Valve Springs for B18A-B / B20 (1.8L-2.0L DOHC)

BLOX Racing valve springs are wound using super clean, chrome silicone alloy. These valve springs are designed and engineered for both high performance street driving and all-out racing conditions. Each set provides maximum lift while preventing valve float and helps counter the effects of spring surge. These are perfect for naturally-aspirated and forced-induction engines.

Key Features

• Precise Spring Rates: Outer seat pressure 100 lbs at 1.378in open 220 lbs at 0.950in inner seat 60 lbs at 1.181in open 140 lbs at 0.800in for cam compatibility.
• High RPM Capability: Supports revs beyond 10000 RPM with coil bind clearances outer 0.800in inner 0.650in.
• Complete Set: Includes 16 outer and 16 inner springs matching OEM dimensions for direct B18A B18B B20B B20Z fitment.
• Dual Spring Design: Outer and inner springs prevent valve float ensuring consistent performance at extreme RPM.
• CNC machined tolerances for perfect seating.
• High-tensile chrome silicon steel heat-treated for fatigue resistance and longevity under high stress.

Fitment

Specifications

What’s Included

One new BLOX Racing product in the exact configuration identified by manufacturer part number BXPT-10302. Only components expressly stated for this exact part number are included.

About BLOX Racing

BLOX Racing develops performance intake, exhaust, fuel, engine, drivetrain, suspension, wheel-hardware, and interior components for street and competition applications. Selection remains exact-part-number and exact-application specific.

Related BLOX Racing Products

• BLOX Racing Ti Retainers for B18A-B B20 (1.8L DOHC)
• BLOX Racing Dual Valve Springs for K20A2-3 Z1-3 (2.0L DOHC i-VTEC) / K24A-3 (2.4L DOHC i-VTEC)
• BLOX Racing Ti Retainers for B16A – B18C1-5 (1.6L – 1.8L DOHC VTEC) / H22A 2.2L DOHC VTEC

Browse the BLOX Racing collection for related performance components.

Frequently Asked Questions

Will this fit my 1990-1993 Acura Integra GS?
That application is listed, but confirm the complete year, make, model, trim, transmission, factory equipment, dimensions, and every BLOX Racing fitment note before ordering.

Does this include everything needed for installation?
Only the components expressly listed for this exact BLOX Racing part number are included. Gaskets, fluids, tuning, adapters, fasteners, wiring, tools, and companion parts may be required depending on the application.

Will an alignment be needed after installation?
An alignment is recommended whenever ride height or suspension geometry changes. Verify tire clearance, steering travel, fastener torque, and all adjustable settings after installation.

Installation Instructions

Follow the current BLOX Racing instructions and vehicle service information for this exact part number. Verify fitment and included components before disassembly, use the specified tools and torque values, check all clearances and connections, and inspect the installation before operation. Professional installation is recommended.