CNC Ported LS3 Cylinder Heads Genuine GM 0821 NEW Rectangle Port L98 L77 L76

One pair of CNC ported Genuine GM LS3 Heads. Brand new. These CNC ported cylinder heads are complete with valves and springs. Being an LS3 head they have the desired light weight sodium filled inlet valves. We can leave them disassembled (as pictured), reassemble with standard springs (no extra charge) or we can fit aftermarket springs for you. (Performance spring kit will cost extra) These will come in original GM boxes BRAND NEW! Maintain your piston to valve clearance by using brand new. We can also fit performance valve springs in house at an extra cost if required. (comes with factory springs otherwise) Aluminium 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 (stock springs) 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 EXHAUST* INLET** .100 49.3 72.5 .200 102.6 148.2 .300 148.6 221.0 .400 184.8 268.2 .500 206.3 307.6 .550 210.0 322.6 .600 212.7 330.5 .650 214.6 334.3 * L98 6.0L CNC ported exhaust, 4.040 bore, 1.59 valve, 0821 casting, no pipe. ** L98 6.0L CNC ported inlet, 4.040 bore, 2.16 valve , 0821 casting, venturi. Here at Malex Motorsports all of our items are in stock in our Sydney based store, ready to ship or pick up. NOW IN SMEATON GRANGE!

CNC Ported LS3 Cylinder Heads Genuine GM 0821 NEW Rectangle Port L98 L77 L76

One pair of CNC ported Genuine GM LS3 Heads. Brand new. 

These CNC ported cylinder heads are complete with valves and springs. Being an LS3 head they have the desired light weight sodium filled inlet valves. We can leave them disassembled (as pictured), reassemble with standard springs (no extra charge) or we can fit aftermarket springs for you. (Performance spring kit will cost extra)  

       

These will come in original GM boxes BRAND NEW! 

     Maintain your piston to valve clearance by using brand new.

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

Aluminium 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 (stock springs)
  • 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  EXHAUST* INLET**
.100 49.3 72.5
.200 102.6 148.2
.300 148.6 221.0
.400 184.8 268.2
.500 206.3 307.6
.550 210.0 322.6
.600 212.7 330.5
.650 214.6 334.3

 

* L98 6.0L CNC ported exhaust, 4.040 bore, 1.59 valve, 0821 casting, no pipe.

** L98 6.0L CNC ported inlet, 4.040 bore, 2.16 valve , 0821 casting, venturi.

 

  • Here at Malex Motorsports all of our items are in stock in our Sydney based store, ready to ship or pick up.
  • NOW IN SMEATON GRANGE!
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Thank you for shopping with us on eBay!

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