Out-of-the-box, bolt-on performance, Engineered to be modified from stock to high performance with ease, These are only for use with LS7 style intake, Accepts stock LS3 valve train parts, 15° valve angle with LS3 1.7 rocker ratio
Enginequest EQ-CH364XA LS3/LSX Hybrid Assembled Cylinder Head Ea Enginequest
Enginequest EQ-CH364XA LS3/LSX Hybrid Assembled Cylinder Head Ea
Sku # 915364246
Mfr. Part # EQ-CH364XA
Condition
New
Brand
Enginequest
Sold
Each
Details
  • Out-of-the-box, bolt-on performance
  • Engineered to be modified from stock to high performance with ease
  • Works with applications of 4” bore &?larger
  • Upgraded 6-bolt block capability
  • 15° valve angle with LS3 1.7 rocker ratio
  • Accepts stock LS3 valve train parts
  • Integrated rocker support towers, MUST?use LS7 rocker bolts
  • Combustion Chamber 69 +/- 2 CC
  • Intake Runner 246 +/- 5 CC / Exhaust Port 69 +/- 5 CC
  • Intake Valve Size 2.165” / Exhaust Valve Size 1.60”
  • New OEM GM Performance LS Engine, Beehive Style Spring
  • 1.800? Installed Height @ 90 Lbs Pressure, 1.250? Height @ 295 Lbs Pressure
  • Max Lift .550?
Specs
Cylinder Head Style
Assembled
Material Type
Aluminum
Finish
Natural
Combustion Chamber Volume
69cc
Intake Valves Included
Yes
Exhaust Valves Included
Yes
Valve Spring Included
Yes
Valve Stem Seals Included
Yes
Valve Guides Included
Yes
Sold in Quantity
Each
MFG. Part #
EQ-CH364XA
Reviews

I've been thinking of getting this cylinder head for awhile,

Rated
Product Rating
by Countryvette on December 20, 2025

Summary: This head combines ls7 port design with an ls3 rocker arm geometry, uses ls7 manifold, stocks are easy to come by and the MSD is a superior component.

Yes, I recommend this product.

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