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Manley Performance Manley Honda/Acura 5.5mm OEM Radius Sport Compact Valve Locks (8pc)
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Manley Honda/Acura 5.5mm OEM Radius Sport Compact Valve Locks (8pc)

MAN13010-8
807298064727
Valve Locks
20+ Units In Stock - Ships Next Business Day
$ 57.52 $ 51.77
$ 51.77

SKU: 13010-8 | UPC: 807298064727

Manley Honda/Acura 5.5mm OEM Radius Sport Compact Valve Locks (8pc) 1992-2011

Manley 5.5mm OEM Radius Sport Compact Valve Locks deliver secure valve stem retention for Honda and Acura four-cylinder engines in performance applications. These locks match 1992-2011 Civic Si Integra GS-R RSX Type-S Accord Prelude S2000 models with 5.5mm stems and factory radius grooves. The 8-piece set equips one cylinder head for all intake and exhaust valves to manage high RPM without float or failure.

Key Features

  • 5.5mm Stem Diameter: Exact fit for Honda/Acura valve stems ensures zero play and firm lockup in demanding valvetrain conditions
  • OEM 10 Degree Radius Design: Locks into standard grooves on stock or aftermarket valves for consistent retention under boost and high revs
  • Chromoly Steel Construction: Heat-treated 4140 chromoly steel withstands fatigue from drag racing road course and track use
  • Black Oxide Finish: Prevents rust and galling for smooth installation and durability in high-heat oily environments
  • 8-Piece Set: Complete kit for one inline-four cylinder head with matched locks for all 16 valves

Product Notes

  • Verify valve stem is 5.5mm with OEM radius groove before installation
  • Pair with Manley valves or OEM equivalents for optimal performance
  • Packaged in protective box for safe transit

Installation Notes

  • Professional installation recommended.
  • Valve spring compressor tool required for removal and installation
  • Works with stock retainers and springs. Torque to manufacturer specs

This Part Fits

Year Make Model Submodel
1997-2001 Acura Integra GS
1992-2001 Acura Integra GS-R
1994-2001 Acura Integra LS
1994-1998 Acura Integra RS
1995-1996 Acura Integra Special Edition
1997-1998 Acura Integra Type R
2000-2001 Acura Integra Type R
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
2006 Honda Accord LX Special Edition
2007 Honda Accord Special Edition
2006-2007 Honda Accord Value Package
2004-2008 Honda Element LX
2007-2008 Honda Element SC
1997-2001 Honda Prelude Base
1997-2001 Honda Prelude Type SH
1993-1996 Honda Prelude VTEC
2000-2008 Honda S2000 Base
2008 Honda S2000 CR
2008 Honda Civic MUGEN Si
1999-2000 Honda Civic Si
2002-2011 Honda Civic Si
1994-1997 Honda Civic del Sol VTEC
1998-2008 Honda CR-V EX
1997-2008 Honda CR-V LX
2000-2001 Honda CR-V SE
2003-2004 Honda Element DX
2003-2008 Honda Element EX

Why Choose Manley?

  • Over 40 years engineering valvetrain components for motorsports
  • USA-made with tight tolerances for dependable performance
  • Proven through real-world drag racing and circuit testing

Frequently Asked Questions

  • Q: Will these fit B18C or K20 engines?
    A: Yes fits B-series D-series F-series H-series K-series heads with 5.5mm stems and OEM radius grooves
  • Q: What material are the valve locks made from?
    A: Precision machined from heat-treated 4140 chromoly steel with black oxide coating for strength and durability
  • Q: Do they work with aftermarket valve springs?
    A: Yes compatible with most aftermarket springs and retainers as long as stem diameter and groove match

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Compact protective box 4 x 3 x 1 inches
  • Weight: 0.2 lbs

Request For Information

Have questions about Manley Honda/Acura 5.5mm OEM Radius Sport Compact Valve Locks (8pc)? Fill out the form below and we'll get back to you by the next business day.
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