Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head

Mangum Racing Stage 2.5 Ported 243/799 LS6 Cylinder Heads

$1,649.99
$1,649.99
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Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head
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  • Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head
  • Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head, view 2
  • Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head, view 3
  • Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head, view 4
  • Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head, view 5
  • Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head, view 6
  • Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head, view 7
  • Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head, view 8
  • Mangum Racing Stage 2.5 ported 243/799 LS6 cathedral port cylinder head, view 9
Mangum Racing Stage 2.5 Ported 243/799 LS6 Cylinder Heads

Mangum Racing Stage 2.5 Ported 243/799 LS6 Cylinder Heads

$1,649.99
$1,649.99

The Mangum Racing Stage 2.5 Ported 243/799 LS6 Cylinder Heads are designed to transform proven GM factory castings into a reliable, high-performance upgrade. Starting with carefully selected seasoned cores, each set features CNC ported runners and a precision valve job for consistent airflow and long-term durability.

Key Features
  • CNC ported intake and exhaust runners
  • Precision CNC valve job
  • Fully assembled and ready to run
  • PAC Racing dual valve springs with titanium retainers
  • Stainless Steel 2.02/1.57 Valves
  • Hand-finished and assembled in-house
Airflow Performance
  • Intake: .200” – 145 CFM | .300” – 208 CFM | .400” – 258 CFM | .500” – 296 CFM | .600” – 3010 CFM | .650” – 312 CFM
  • Exhaust: .200” – 118 CFM | .300” – 157 CFM | .400” – 199 CFM | .500” – 216 CFM | .600” – 232 CFM | .650” – 238 CFM
Construction Details
  • Seasoned GM 243/799 castings
  • 228cc CNC intake ports
  • 62.5cc CNC combustion chambers
  • 2.002” intake / 1.57” exhaust stainless valves
  • PAC dual spring package
  • 15° valve angle with factory guides
Fitment
  • Minimum bore: 3.780”
  • Compatible with 4.8L, 5.3L, 5.7L, 6.0L LS engines and larger

Ideal for camshaft upgrades, class racing applications, or improving reliability on LS engines, these heads offer proven performance while retaining factory-style castings.

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