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Diamond 30331-RS - Mod2k Race Series Piston / Ring Set for Ford 4.6L 4V -9.5cc Dish, 3.582" Bore, 3.750" Stroke, 5.850" Rod Length, 1.200" CD

Approx 9.9:1 Compression Ratio
Pricing: $1,129.99

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Diamond's all new Mod2k Race Series Pistons for the Ford 4.6L 4V Engines are the absolute best pistons available on the market! These Pistons feature a lightweight, yet super strong, strutted forging with all the upgrades needed to support up to 2000 HP right out of the box!


  • 2618 Alloy Strutted Forging
  • Additional Pin Boss Struts for added strength 
  • .325" Down Top Ring Land 
  • .165" Intake / .070" Exhaust Valve Reliefs - Trough Style
  • Lateral Gas Ports for better ring seal 
  • Moly Coated Skirts
  • Trend Performance .225" Wall H-13 Wrist Pins 
  • Total Seal AP Steel Piston Ring Set - Napier 2nd upgrade optional 

Compression Ratio: 9.9:1  
Compression ratio calculated with 3.650" Bore / .039" Compressed Thickness
Head Gasket with .010" Piston to Deck Clearance - 52cc Chambers 


Part Number   30331-RS
Piston Material   2618 Aluminum Alloy 
Fitment   Ford 4.6L 4V 
Piston Volume  -9.5cc Dish 
Bore  3.582" 
Stroke  3.750"  
Rod Length  5.850" 
Compression Height  1.200" 
Wrist Pin Dimesions .866" x 2.250" x .225" Wall 
Wrist Pin Material  H-13 Tool Steel 
Included Piston Ring Set  09053582




Shipping Information

  • Item Requires Shipping
  • 14.0 lbs.
  • W28.0000” x H12.0000” x L6.0000”
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