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Wiseco K0091XS - 4.6L 2V TFS Piston / Ring Kit -13cc Dish, 3.552" Bore

Fits 4.6L Engines w/ TFS Twisted Wedge Heads. -13cc Dish , 3.552" Bore
Pricing: $845.59

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We have worked directly with Wiseco to offer the absolute best shelf stocking Pistons available for the Ford Modular Engines. These Pistons are an In-Board Forging, Strutted Skirt design capable of handling lots of Boost and / or Nitrous. Some of their features are a .300" Down Top Ring, Thick Skirts and Struts and Wiseco Armour-Glide Skirt Coating. The best thing about this Piston Set is the Rings. These Pistons are supplied with Wiseco GNX Piston Ring Set which uses a Gas Nitrided Steel Top Ring and Napier 2nd Ring with a 3 Piece Oil Ring. The Steel Top Ring is capable of withstanding large amounts of Boost and / or Nitrous, while the Napier 2nd Ring helps with Oil Control. We have been testing these Pistons / Rings for quite some time now and they are the absolute best we have seen.

52100 Tool Steel .200" Wall Wrist Pins are available as an upgrade - Suggested for 800+ HP 
For Applications over 1000 HP, we suggest contacting us for a custom set of Pistons. 


Part Number  K0091XS
Bore  3.552" 
Dish Volume  -13cc Dish 
Compression Height  1.220" 
Top Ring Down .300" 
Valve Pockets  2V TFS Twisted Wedge  
Wrist Pin  .866" x 2.250" 
Wrist Pin Material  4130 Chrome Moly / 52100 Tool Steel Available  
Piston Rings  3552GNX (Included) 


Compression Ratios

       -13cc Dish 

TFS 38cc  10.75:1 
TFS 44cc   9.85:1 



  • WIS-K0091XS
  • WIS-K0091XS
  • Wiseco
  • New

Shipping Information

  • Item Requires Shipping
  • 16.0 lbs.
  • W12.0000” x H4.0000” x L24.0000”
  • Free Shipping!

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