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NEW WR 41/36 Valve Kit for the WR2132cc Conversion

  • WR 41/36 Valve Kit
  • WR 41/36 Valve Kit installed with combustion chamber mods
  • WR Tool Steel Retainer installed
  • WR intake valve with Viton seal and spring pad
  • WR locking valve guide installed and ready for spring pad and seal
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5.00 LBS
Calculated at checkout

Product Description

This is our newest ultimate performance WR 41/36 Valve Kit designed specifically for the WR2132cc engine.  It is a complete set of all components necessary to modify the 356 or 912 cylinder heads for use with the WR 2132cc engine conversion.

The 8mm stem intake and exhaust valves are both custom made for us by Manley and are designed to take the added heat and abuse of an air-cooled engine.

The single groove locks are far superior to the three groove oem type, and eliminate wear at the retainer.

The special copper alloy valve seats have an expansion and heat transfer rate closer to the aluminum of the head, and provide better cooling and safety against combustion chamber cracking.

The valves are designed to run hardened 2mm lash caps which provide a larger contact area for the rocker, and are sized to provide the correct length insuring proper rocker geometry and full valve lift.

The special locking valve guides use a Viton intake seal and have a special ridge that is counter-bored into the head and held in place by the 4340 chromoly spring pad to lock the guide into place and center the inner valve spring.

The high quality dual springs can be set up for a variety of cams from .325” to over .500” lift and are good for over 7000 rpm.

The WR tool steel retainers are specially designed for our dual springs and provide light weight and super long life.


We didn’t just pull these parts off the shelf. They have been designed and tested in dozens of engines and fine-tuned and proven to work properly. Don’t experiment…use the best!  You can’t buy a better combination for the WR2132cc engine.



4 - 41mm stainless Manley intake valves and lash caps

4 - 36mm stainless Manley exhaust valves and lash caps

4 - WR Locking intake guides with Viton seals.

4 - WR Locking exhaust guides.

8 - WR high performance dual springs.

8 - WR chromoly spring pads.

8 - WR tool steel retainers.

16 - Manley single bead valve locks.

4 - 41mm copper alloy intake seats.

4 - 36mm copper alloy exhaust seats.

Complete instructions for set up of valve tip height, spring pressure, and suggested porting and chamber modification.

Valve guides available in oversize.

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