12629064 - Chevrolet Performance Assembled L92 Cylinder Head Assembly

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Pricing: $505.18


Chevrolet Performance Fully Assembled L92 Cylinder Head

Got a 4.00” bore LS engine just itching for a more air and a few more ponies? This new L92 cylinder head is a great affordable bolt-on upgrade that won’t clean your wallet out.

L92 Cylinder Head Spec:
• Fits any LS family engine with 4.00" bore or larger, will not works with 4.8L or 5.3L engines
• Solid stem 2.165" intake valves
• Solid stem 1.590" exhaust valves
• Springs good for up to .510" max valve lift
• As-cast L92 style 260cc intake ports
• D-shaped exhaust ports
• 70cc as-cast combustion chambers
• Standard LS 15 degree valve angle

L92 Cylinder Head GM Flow Chart

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

L92 Head Gaskets
GM Performance Head Bolts
Exhaust Manifold Gaskets
Pace Complete L92 Head Upgrade Packages
Production EFI Intake with Injectors and DBW Throttle Body
4 Barrel Carburetor Intake Manifold

Application List


Shipping Information

  • Item Requires Shipping
  • 24.0 lbs.
  • W11.0000” x H8.1000” x L24.4000”

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