Fitment:
Compatible with GM LS Gen III and IV engines equipped with Cathedral Port cylinder heads, including:
1997-2004 Chevrolet Corvette (LS1, LS6)
1998-2002 Pontiac Firebird / Chevy Camaro (LS1)
2004-2006 Pontiac GTO (LS1, LS2)
2004-2007 Cadillac CTS-V (LS6, LS2)
Truck Engines (Gen III/IV): 4.8L, 5.3L, 6.0L (Codes: LM7, LR4, LQ4, LQ9, L33, LH6, etc.) with Cathedral Ports.
Important Technical Note
NOTE regarding "Port Shape" Terminology:
While the intake ports on this manifold appear rectangular in shape (tall and narrow),
in GM LS engine terminology, this specific shape (approx. 2.72" Tall x 1.00" Wide) is technically called "Cathedral Port."
THIS ITEM FITS: Gen III/IV engines with Cathedral Port heads (LS1, LS2, LS6, LM7, LQ4, LQ9, etc.).
THIS ITEM DOES NOT FIT: Gen IV engines with "Rectangular/Square Port" heads (LS3, L92, L99, L76).
The true "Rectangular Port" heads have much wider and shorter intake ports.
Please verify your cylinder head type before purchasing.
Details:
Intake Style: Dual plane
RPM Range: 1500-6500 RPM
EGR or Non-EGR: Non-EGR
Material: Aluminum
Finish: satin
Includes Gaskets: No
Requires Aftermarket Fuel Rails: No
Port Dimensions: 2.63'' x 1.08''
Intake Height: 6.15'' Front, 5.07'' Rear
Type: LS (Cathedral Port)
Package included:
1*Intake Manifold
Mounting Hardware
As shown in the picture above

















