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Stainless Steel Valves, BBC, 11/32 Stem , 2.300", Std Length, Black Max, set of eight

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Product Description

11/32" Stem BBC Valves
Stainless Steel Intake Valves- Set of Eight
2.300" Standard Length Intake Valves
Manufactured by the now closed Manley Valve Plant in York PA, these might be the very last available anywhere.
From the "Black Max" valve family, these fine valves have earned the respect of many engine builders and racers alike.
Black Max valves were specially processed to create an ultra smooth "Gun Barrel" black finish.
Black Max valves are known to reduce friction in all high HP applications. Their ultra slick stems glide through the valve guide with less resistance that common chrome plated valves.
Just hold a valve in your hand and rub your finger nail across the stem and you'll feel the difference.
Black Max valves are known to resist stem wear better than chrome stem valves, not a plating so there's nothing to come off. Black Max valves resist galling more than chrome or plain stem valves.
The black Melonite/Nitride process is quickly replacing chrome plated valves by many of the OE auto manufacturers. All over the world, OEM car and motorcycle manufacturers are specifying their valves be treated instead of chrome plated. Also very popular in many Harley Davidson engines.
Fully compatible with all guide materials, Black max valves can handle even the hardest valve guides, chilled iron and/or hardened iron guides are no problem.
Alex's parts currently has all the remaining inventory of these special valves. A list of the remaining sizes can be found at the bottom of this page.


  • Premium Stainless Steel Material
  • 21-4N American Alloy
  • Undercut Stems
  • Solution Heat Treated & Age Hardening Process
  • Valve Profiled for lower weight and improved flow
  • Welded Wafer Hard Tip to resist wear from high spring pressure applications
  • Fully CNC machined
  • Purchase comes with eight valves

  • A- 5.229" Overall length
  • B- 2.300" Head Diameter
  • C- Stem Diameter- 11/32"
  • D- Tip Length, .250", Groove Configuration- Square, stock shape
  • E- Stem length:
Limited to available stock. Once inventory is depleted, that will be it.
    Other available sizes:
  • 2.190", 2.250" & 2.300" in Std and +.100" Long
  • 1.880" Std
Looking for one of these sizes? Check our other listings or write.


Alex's Parts- The smart choice in valve train parts~


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