BLOX Racing Dual Valve Springs for K20A2-3 Z1-3 (2.0L DOHC i-VTEC) / K24A-3 (2.4L DOHC i-VTEC) BLOX Racing BLOBXPT-10301
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BLOX Racing Dual Valve Springs for K20A2-3 Z1-3 (2.0L DOHC i-VTEC) / K24A-3 (2.4L DOHC i-VTEC)

BLOX Racing
BLOBXPT-10301
BXPT-10301
Valve Springs, Retainers
20+ Units In Stock - Ships Next Business Day
$ 208.00
$ 208.00

SKU: BXPT-10301

BLOX Racing Dual Valve Springs for K20A2-3 Z1-3 (2.0L DOHC i-VTEC) / K24A3 (2.4L DOHC i-VTEC) 2002-2011 Honda Acura

BLOX Racing Dual Valve Springs BXPT-10301 provide precise valve control for K20A2 K20A3 K20Z1 K20Z2 K20Z3 and K24A3 engines in popular 2002-2011 Honda and Acura models. These springs retain stock installed height with 62 lbs seat pressure at 1.780 inches and 175 lbs open pressure at 1.180 inches for stable valve operation beyond 10,000 RPM. Drivers experience reduced valve float during high RPM shifts aggressive cornering or full throttle racing.

Key Features

  • Dual Spring Design: Inner and outer springs deliver progressive rates for exact valve motion control across entire RPM range
  • High Seat Pressure: 62 lbs closed keeps valves seated under high deceleration and cornering loads
  • Increased Open Pressure: 175 lbs at 1.180 inch lift handles cams up to 14mm lift without bounce or float
  • Chrome Silicon Steel: Heat treated for fatigue resistance and durability in high heat competition environments
  • Coil Bind Height: 0.980 inches ensures full valve travel with safety margin on stock or aftermarket heads

Product Notes

  • Complete set of 16 springs (8 inner 8 outer) covers one cylinder head
  • Retains OEM spring height no machining needed on stock heads
  • Ships in protective foam lined box 10 x 6 x 6 inches 2.2 lbs

Installation Notes

  • Professional installation recommended.
  • Requires valve spring compressor tool for K-series cylinder heads
  • Compatible with stock retainers and OEM valve locks no additional hardware needed

This Part Fits

Year Make Model Submodel
2002-2006 Acura RSX Base
2002-2006 Acura RSX Type-S
2004-2008 Acura TSX Base
2003-2005 Honda Accord DX
2003-2007 Honda Accord EX
2003-2007 Honda Accord LX
2005 Honda Accord SE
2006 Honda Accord LX Special Edition
2006-2007 Honda Accord Value Package
2007 Honda Accord EX-L
2007 Honda Accord Special Edition
2002-2006 Honda CR-V EX
2002-2006 Honda CR-V LX
2005-2006 Honda CR-V SE
2002-2011 Honda Civic Si
2008 Honda Civic MUGEN Si
2003-2004 Honda Element DX
2003-2011 Honda Element EX
2004-2011 Honda Element LX
2007-2010 Honda Element SC

Why Choose BLOX Racing?

  • Proven in drag and circuit racing with championship winning teams
  • Engineered and dyno tested for K-series reliability under boost
  • Made in USA with tight tolerances for consistent spring rates

Frequently Asked Questions

  • Q: Will these fit my 2006 RSX Type-S K20A2 engine?
    A: Yes BXPT-10301 installs directly as a drop-in replacement for stock springs on K20A2 maintaining OEM height
  • Q: What material are the springs made from?
    A: Premium chrome silicon steel heat treated for maximum fatigue resistance and high temperature stability
  • Q: Do I need new retainers or seals?
    A: No compatible with factory retainers valve locks and seals professional install advised for reuse

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Foam protected box 10 x 6 x 6 inches
  • Weight: 2.2 lbs

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