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BSA A10 Valve Guides

BSA A10 Valve Guides MAP9110

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  • BSA A10 Valve Guides MAP9110

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SKU Valve Guide Size Price Qty Add to Cart
MAP9110/STD Standard
MAP9110/001 +.001"
MAP9110/002 +.002"
MAP9110/004 +.004"
MAP9110/006 +.006"
MAP9110/020 +.020"


Exclusive NASCAR '45'TM Material

A Proprietary Alloy as Designed for and used exclusively for NASCAR team is now available for your beloved British bike.  Under exclusive arrangement with the manufacturer,  MAP Cycle is proud to offer this material to our custmers.  NASCAR '45'TM is a proprietary Manganese bronze based alloy that (unlike its Ampco 45/C630 nickel loaded brothers) forms a long linear vertical grain structure for superior wear with an expansion rate similar to aluminum.  This similar expansion and highest amount hof heat dissapation allows for a tighter valve to guide clearance for not only longer life but also a more stable and accurate valve seating.

  • Helps eliminate pitting on seats and/or valve faces
  • Superior durability
  • CNC machined to exact specifications
  • Better heat dissipation compared to the popular AMCO 45/C630 materials
  • Expansion rate similar to aluminum (perfect for aluminum cylinder heads)
  • Honed internal finish for best oil retiention
  • Proven in Racing and on the street by enthusiasts across the globe

Exclusive Ringed Margins

No longer require different guides for sealed/unsealed applications. Remove a small bit of material and add our high temp viton oil metering seal (MAP9240). A true cost saver as No additional guides are needed if you happen to decide on using seals.

Constant research and development

M.A.P. NASCAR '45'TM valves guides are the absolute best guides available for street or track.  Etched with type and size for ease in identification.  Insist your dealer carry the very best British valve guide.  To be sure of the highest quailty possible remember to ask for them by name - Nascar '45'TM

Additional Information

Manufacture MAP Cycle
Country of Manufacture United States
Additional Information

Additional Information

Manufacture MAP Cycle
Country of Manufacture United States

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Fitment Information

BSA Models

  • BSA A10 Plunger 1950 - 1957
  • BSA A10 Rigid 1950 - 1951
  • BSA A10 Road Rocket 1954 - 1957
  • BSA A10 Rocket Gold Star 1962
  • BSA A10 Rocket Scrambler 1958 - 1959
  • BSA A10 Royal Tourist 1961 - 1962
  • BSA A10 Spitfire 1960 - 1962
  • BSA A10 Super Flash 1953 - 1954
  • BSA A10 Super Rocket 1958 - 1962
  • BSA A10 Swing Arm 1954 - 1962
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What is the od of the std size valve guide for my 1962 super road rocket
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