2 X NEW Genuine GM 0821 LS3 Rectangle Port Cylinder Heads L98 (Pair)

SKU: 12675871
2 X NEW Genuine GM 0821 LS3 Rectangle Port Cylinder Heads  L98 (Pair)
2 X NEW Genuine GM 0821 LS3 Rectangle Port Cylinder Heads  L98 (Pair)
2 X NEW Genuine GM 0821 LS3 Rectangle Port Cylinder Heads  L98 (Pair)
2 X NEW Genuine GM 0821 LS3 Rectangle Port Cylinder Heads  L98 (Pair)

2 X NEW Genuine GM 0821 LS3 Rectangle Port Cylinder Heads L98 (Pair)

SKU: 12675871
Regular price $2,395.00
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Genuine GM LS3 Cylinder Heads (pair)

       considering the cost of servicing your existing heads these present           excellent,  ready to bolt on, value. 

These will come in original GM boxes BRAND NEW!

     Maintain your piston to valve clearance by using brand new.

     You could also consider selling your old heads to recoup some of the cost.

     We can also  fit performance valve springs in house at an extra cost if required. (comes with factory springs otherwise) 

Aluminum performance head

  • Fits any LS family engine with 4.00" bore or larger
  • 2.165" hollow stem intake, and 1.59" solid stem exhaust valves
  • .550" max valve lift
  • As-cast L92 style 260cc intake ports
  • D-shaped exhaust ports
  • As-cast combustion chambers

Head 12615879 is assembled with the following components:

  • 12569427 Sodium Filled Intake Valves
  • 10166344 Valve Spring Retainers
  • 12582719 Exhaust Valves
  • 12482063 Intake Valve Stem Seals
  • 12625033 Valve Springs
  • 12482062 Exhaust Valve Stem Seals
  • 10166345 Valve Locks

 

Lift .200" .300" .400" .500" .600"
Intake Flow 151 208 256 294 316
Exhaust Flow 111 152 174 183 189

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