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01543 431941

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LS Series LS3 Deluxe Power Upgrade Kit

SKU: 19301990

Quick Overview

The Chevrolet Performance LS3 CNC-Ported Aluminum Cylinder Head design benefits from General Motors' extensive research and development program, ensuring maximum airflow without compromises. In fact, many professional builders use this head as straight bolt-ons, with no further machining. These assembled heads use premium machining and materials, including CNC finishing and porting, along with lightweight, hollow-stem intake valves and sodium-filled exhaust valves to provide your engine with the power increase you have been searching for!



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Excl. Tax: £2,295.00 Incl. Tax: £2,754.00
LS Series LS3 Deluxe Power Upgrade Kit is available for purchase in increments of 1

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The Chevrolet Performance LS3 CNC-Ported Aluminum Cylinder Head design benefits from General Motors' extensive research and development program, ensuring maximum airflow without compromises. In fact, many professional builders use this head as straight bolt-ons, with no further machining. These assembled heads use premium machining and materials, including CNC finishing and porting, along with lightweight, hollow-stem intake valves and sodium-filled exhaust valves to provide your engine with the power increase you have been searching for!

Features

  • Manufactured from 319-T5 aluminum alloy
  • 2.165" Hollow Stem Intake Valves
  • 1.590" Solid Stem Exhaust Valves
  • 15 degree valve angle
  • 276cc CNC'd intake ports
  • 92cc CNC'd D-shaped exhaust ports
  • 68.5cc combustion chambers (maintains stock LS3 compression ratio!)
  • .550" max valve lift with installed springs
  • Symmetrical intake and exhaust ports
  • High-efficiency combustion chambers
  • 14mm, 5/8" hex, 3/4" reach, taper-seat Angled spark plug
  • Bolt-down-type rocker arms
  • Center-bolt valve cover hold-downs
  • Design for any LS engine with cylinder bores of 4.000 inches or larger, including 6.2L L92 truck engines
  • All fasteners are metric
  • 10% increase in airflow over factory LS3 head
Tech Specs

Features

  • Manufactured from 319-T5 aluminum alloy
  • 2.165" Hollow Stem Intake Valves
  • 1.590" Solid Stem Exhaust Valves
  • 15 degree valve angle
  • 276cc CNC'd intake ports
  • 92cc CNC'd D-shaped exhaust ports
  • 68.5cc combustion chambers (maintains stock LS3 compression ratio!)
  • .550" max valve lift with installed springs
  • Symmetrical intake and exhaust ports
  • High-efficiency combustion chambers
  • 14mm, 5/8" hex, 3/4" reach, taper-seat Angled spark plug
  • Bolt-down-type rocker arms
  • Center-bolt valve cover hold-downs
  • Design for any LS engine with cylinder bores of 4.000 inches or larger, including 6.2L L92 truck engines
  • All fasteners are metric
  • 10% increase in airflow over factory LS3 head

Kit Includes:

  • Chevrolet Performance LS3 Assembled Cylinder Head  (2) - 88958758
  • Chevrolet Performance LS7 Camshaft - 12638426
  • Chevrolet Performance Camshaft Sprocket - 12623754
  • Chevrolet Performance Cam Bolts (3) - 11588723
  • Chevrolet Performance Head Gaskets (2) - 12610046
  • Chevrolet Performance Head Bolts (20) - 19258707
  • Chevrolet Performance Head Bolts (10) - 12558840
  • Chevrolet Performance Air Bleed Covers (2) - 12602540
  • Chevrolet Performance Exhaust Manifold Gaskets (2) - 12617944
  • Chevrolet Performance Crankshaft Bolt - 12557840

 

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