HEAD RELATED


We chose to use Phosphor Bronze (Cn-Sn-P alloy) to make our Valve Guides, for its highly tensile and superior heat transferring ability, which is vital in high power and high RPM outputting engines. Since race engines these days require more power at higher RPM use , these engines now experience more extreme heat conditions. These conditions will increase the deterioration rate on these valve train related components. The Phosphor Bronze material has exceptionally lower friction and the best possible clearances can be maintained, which will reduce the stress on the valve train assembly, prevent seizures and cracking under high stress loads.



Still since the product will be used for extreme conditions, it will still require additional regular maintenance and periodical checks. The product can wear out faster under certain conditions. Some examples of the abnormal conditions are as follows.



■The rocker arm type assemblies will apply more lateral pressure, which will increase the wear rate. If the stem wall of the valve is rough, it will also contribute to the increased wear rate.

■Using high lift, aggressive camshafts will also increase the wear rate.
■Excessive buildup of carbon will also hinder performance and increase wear rate. When there's a small opening at the end, it will increase the carbon buildup rate as a funnel effect.
■The results from Valve Spring surging will cause the Valve to move on an angle. This will cause both ends to open up and create deformation. Then carbon can enter the valve guides more which will increase the wear rate.
■A defective seat cut. When the seat cut's centerline across the main 45 degree face is offline from the valve stems centerline by more than 0.01mm, this can cause increased abnormal wear rate.
■If the clearance is not within the correct 0.03-0.04mm range. The Valve will rub against the guides inner wall, this degree angle in relation to the seat cut will cause it to shift by 0.01mm more than the clearance values. The guide will take the lateral pressure point and open up the opening. The buildup of carbon will increase in the newly formed gaps.
■A worn out used Valve. It's possible to cut down by using the part that has not worn out the stem when changing to a high lift cams. The guides can wear out when the inappropriate clearances are made. (About 0.01mm out of clearance).
■The Valve design is defective. The difference from the dilatability and the guide being worn out abnormally is when the valve that is made with different alloys, will contribute with a faster deterioration.



VALVE GUIDE

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  • TYPE: WHOLE UNIT

  • Parts No.TA309A-MT01A
  • Weight2 lbs
  • MSRP$240.00
  • Dimension7 x 6 x 3 inch
  • Sub CategoryVALVE GUIDE
  • Qty in Stock21
  • EngineMITSUBISHI 4G63
  • NoteIn Stock Now!
  • ModelMITSUBISHI EVO1-9
  • Available Repair PartsYes
  • Parts No.TA309A-MT01A
  • MSRP$240.00
  • Sub CategoryVALVE GUIDE
  • EngineMITSUBISHI 4G63
  • ModelMITSUBISHI EVO1-9
  • Weight2 lbs
  • Dimension7 x 6 x 3 inch
  • Qty in Stock21
  • NoteIn Stock Now!
  • Available Repair PartsYes

  • Parts No.TA309A-MT02A
  • Weight2 lbs
  • MSRP$240.00
  • Dimension7 x 6 x 3 inch
  • Sub CategoryVALVE GUIDE
  • Qty in Stock13
  • EngineMITSUBISHI 4B11
  • NoteIn Stock Now!
  • ModelMITSUBISHI EVO10
  • Available Repair PartsYes
  • Parts No.TA309A-MT02A
  • MSRP$240.00
  • Sub CategoryVALVE GUIDE
  • EngineMITSUBISHI 4B11
  • ModelMITSUBISHI EVO10
  • Weight2 lbs
  • Dimension7 x 6 x 3 inch
  • Qty in Stock13
  • NoteIn Stock Now!
  • Available Repair PartsYes

  • Parts No.TA309A-NS01A
  • Weight3 lbs
  • MSRP$360.00
  • Dimension7 x 6 x 3 inch
  • Sub CategoryVALVE GUIDE
  • Qty in Stock19
  • EngineNISSAN VR38DETT
  • NoteIn Stock Now!
  • ModelNISSAN 35 GT-R
  • Available Repair PartsYes
  • Parts No.TA309A-NS01A
  • MSRP$360.00
  • Sub CategoryVALVE GUIDE
  • EngineNISSAN VR38DETT
  • ModelNISSAN 35 GT-R
  • Weight3 lbs
  • Dimension7 x 6 x 3 inch
  • Qty in Stock19
  • NoteIn Stock Now!
  • Available Repair PartsYes

  • Parts No.TA309A-NS05A
  • Weight3 lbs
  • MSRP$360.00
  • Dimension7 x 6 x 3 inch
  • Sub CategoryVALVE GUIDE
  • Qty in Stock22
  • EngineNISSAN RB26DETT
  • NoteIn Stock Now!
  • ModelNISSAN 32 GT-R, NISSAN 33 GT-R, NISSAN 34 GT-R
  • Available Repair PartsYes
  • Parts No.TA309A-NS05A
  • MSRP$360.00
  • Sub CategoryVALVE GUIDE
  • EngineNISSAN RB26DETT
  • ModelNISSAN 32 GT-R, NISSAN 33 GT-R, NISSAN 34 GT-R
  • Weight3 lbs
  • Dimension7 x 6 x 3 inch
  • Qty in Stock22
  • NoteIn Stock Now!
  • Available Repair PartsYes

  • Parts No.TA309A-NS06A
  • Weight3 lbs
  • MSRP$360.00
  • Dimension7 x 6 x 3 inch
  • Sub CategoryVALVE GUIDE
  • Qty in Stock11
  • EngineNISSAN RB25DET, NISSAN RB20DE, NISSAN RB20DET, NISSAN RB25DE NEO6, NISSAN RB25DET NEO6, NISSAN RB25DE
  • NoteIn Stock Now!
  • ModelNISSAN 32 SKYLINE, NISSAN 33 SKYLINE, NISSAN 34 SKYLINE
  • Available Repair PartsYes
  • Parts No.TA309A-NS06A
  • MSRP$360.00
  • Sub CategoryVALVE GUIDE
  • EngineNISSAN RB25DET, NISSAN RB20DE, NISSAN RB20DET, NISSAN RB25DE NEO6, NISSAN RB25DET NEO6, NISSAN RB25DE
  • ModelNISSAN 32 SKYLINE, NISSAN 33 SKYLINE, NISSAN 34 SKYLINE
  • Weight3 lbs
  • Dimension7 x 6 x 3 inch
  • Qty in Stock11
  • NoteIn Stock Now!
  • Available Repair PartsYes

  • Parts No.TA309A-NS08A
  • Weight2 lbs
  • MSRP$240.00
  • Dimension7 x 6 x 3 inch
  • Sub CategoryVALVE GUIDE
  • Qty in Stock5
  • EngineNISSAN SR20DET, NISSAN SR20DE
  • NoteIn Stock Now!
  • ModelNISSAN 13 SILVIA, NISSAN 180SX
  • Available Repair PartsYes
  • Parts No.TA309A-NS08A
  • MSRP$240.00
  • Sub CategoryVALVE GUIDE
  • EngineNISSAN SR20DET, NISSAN SR20DE
  • ModelNISSAN 13 SILVIA, NISSAN 180SX
  • Weight2 lbs
  • Dimension7 x 6 x 3 inch
  • Qty in Stock5
  • NoteIn Stock Now!
  • Available Repair PartsYes

  • Parts No.TA309A-NS08B
  • Weight2 lbs
  • MSRP$240.00
  • Dimension7 x 6 x 3 inch
  • Sub CategoryVALVE GUIDE
  • Qty in Stock17
  • EngineNISSAN SR20DET, NISSAN SR20DE
  • NoteIn Stock Now!
  • ModelNISSAN 14 SILVIA, NISSAN 15 SILVIA, NISSAN 180SX
  • Available Repair PartsYes
  • Parts No.TA309A-NS08B
  • MSRP$240.00
  • Sub CategoryVALVE GUIDE
  • EngineNISSAN SR20DET, NISSAN SR20DE
  • ModelNISSAN 14 SILVIA, NISSAN 15 SILVIA, NISSAN 180SX
  • Weight2 lbs
  • Dimension7 x 6 x 3 inch
  • Qty in Stock17
  • NoteIn Stock Now!
  • Available Repair PartsYes

  • Parts No.TA309A-NS11A
  • Weight2 lbs
  • MSRP$240.00
  • Dimension7 x 6 x 3 inch
  • Sub CategoryVALVE GUIDE
  • Qty in Stock4
  • EngineNISSAN CA18DET, NISSAN CA18DE
  • NoteIn Stock Now!
  • ModelNISSAN 13 SILVIA, NISSAN 180SX
  • Available Repair PartsYes
  • Parts No.TA309A-NS11A
  • MSRP$240.00
  • Sub CategoryVALVE GUIDE
  • EngineNISSAN CA18DET, NISSAN CA18DE
  • ModelNISSAN 13 SILVIA, NISSAN 180SX
  • Weight2 lbs
  • Dimension7 x 6 x 3 inch
  • Qty in Stock4
  • NoteIn Stock Now!
  • Available Repair PartsYes

  • Parts No.TA309A-SB01A
  • Weight2 lbs
  • MSRP$240.00
  • Dimension7 x 6 x 3 inch
  • Sub CategoryVALVE GUIDE
  • Qty in Stock28
  • EngineSUBARU EJ257, SUBARU EJ205, SUBARU EJ207, SUBARU EJ255
  • NoteIn Stock Now!
  • ModelSUBARU WRX, SUBARU WRX STI
  • Available Repair PartsYes
  • Parts No.TA309A-SB01A
  • MSRP$240.00
  • Sub CategoryVALVE GUIDE
  • EngineSUBARU EJ257, SUBARU EJ205, SUBARU EJ207, SUBARU EJ255
  • ModelSUBARU WRX, SUBARU WRX STI
  • Weight2 lbs
  • Dimension7 x 6 x 3 inch
  • Qty in Stock28
  • NoteIn Stock Now!
  • Available Repair PartsYes