Wiseco K474M965 kits Chevy LS 5.3 - 3.622 Stroke

Price:   $581.51


Wiseco K474M965 kits Chevy LS 5.3 - 3.622 Stroke
As the leader in LS-1 forged pistons, Wiseco pulled out all the stops when designing this series. They are designed to accommodate the reluctor ring on stroker cranks without having to notch the pin bosses. Offset pins like o.e. and skirt shapes specifically designed for street applications make these the best available. They have been tested successfully in the highest horsepower applications.




  • NEW Armor Glide Coated skirts for LS Series Pistons. Much higher adherence factor then other moly coatings.
  • Strutted skirt design is the strongest and specially designed to run at as little as .004” clearance with excellent skirt wear and minimal noise or rock.
  • Radiused valve pockets for detonation resistance and increased flow around valves.
  • Anti-detonation grooves with the added benefit of keeping the top ring groove free of carbon.
  • 1.2mm Nitride Steel Top, 1.2mm Napier 2nd, and Nitride 3mm oil GFX ring pack not included (Please order part# 3805HF, quantity of 8 needed)  for the best seal, reduced friction, and superior oil control.

  • Pressure groove for enhanced ring seal.
  • Features chrome moly pins and Spiro lock. (Tool steel pins optional.)
  • Race Ready Domes don’t require deburring by the engine builder.
  • Wiseco Armor Glide skirt coated for lower friction, reduced noise, and superior life.
  • Multi-fit valve pockets for interchangeability of cylinder heads.

Kits Included:



  • Pistons
  • Pins
  • Rings not included (Please order part# 3805HF, quantity of 8 needed)


  • Spiro Locks
  • Skirt Coatings



  • Bore Size: 3.800"
  • Comp Height: 1.300
  • Stroke: 3.622
  • Rod Length: 6.125
  • 0 Deck at: 9.236
  • Std. Deck Ht.: 9.240
  • Vol: FT -2.2
  • Comp Ratio w/58cc Head: 10.2
  • Comp Ratio w/61cc Head: 10.4
  • Valve Pocket: LS1, 2, 6
  • Std. Tension Rings: 3780GFX


Purchase Options

Add to Cart:

  • Model: K474M965
  • Shipping Weight: 10lbs
  • 3 Units in Stock
  • Manufactured by: Wiseco Pistons

This product was added to our catalog on Thursday 19 May, 2011.