CHEVROLET PERFORMANCE LS3 HEADS (12629063) WITH TITANIUM RETAINER .660" LIFT PLATINUM SPRING KIT

Chevrolet Performance LS3 CNC'd Cylinder Heads 88958758 with BTR Spring Kit

• CNC-ported Version of the LS3 Cylinder Head
• Flows About 10-Percent More Than The Production Head - More Than 350 cfm (intake side) at .600" Lift
• 276cc Intake Runners and 92cc Exhaust Ports
• 68.5cc Chambers
• Fits All LS Engines with 4.000" Bore or Larger
• 2.165" Hollow Stem Intake, and 1.590" Solid Stem Exhaust Valves
• D-Shaped Exhaust Ports

Price Is For 2 Cylinder Heads

Cylinder Heads Come Assembeled with a BTR .660" Lift Platinum Spring Kit with Titanium Retainers

Cylinder Head Service Options Include:

• Blending of Valve Job

and/or

• Softening of Chambers

PLEASE ALLOW 2 TO 3 WEEKS FOR CYLINDER HEAD WORK TO BE COMPLETED