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YESHMA LS LS1 LS2 LS6 Intake Manifold with Throttle Body for Cathedral Port Heads
Parameter:
- Fuel Rail Fitting: 6AN to 8AN
- Vacuum Port Fittings: 1/8 NPT to 1/4, 5/16, 7/16 hose end, 1/4 NPT x 1/2 hose end
Package Includes
- Intake manifold (with rear map sensor port
- Fuel rails &bracket & bolts & gaskets
- Fuel crossover line
- Adapters &O-rings
- Washers
Application
Engines:
Fits: For LS Based Engines with Cathedral Port Heads Shape;
For Original LS1/LS2/LS6 Engine.
For LS1 LS2 LS6 (6.0L 5.6L 5.3L 4.8L)
For Chevrolet Small Block V8 GEN. III/IV(LS-Based)
(For LR4) 4.8L / 293 CI
(For L33,L59,LM4,LM7) 5.3L / 325 CI
(For LS1,LS6) 5.7L / 346 CI
(For LQ4,LQ9,LS2) 6.0L / 364 CI
Models:
Compatible with 1997-2007 Chevy Corvette
Compatible with 2001-2004 Corvette Z06
Compatible with 2005-2006 Chevy SSR
Compatible with 2006-2009 Chevy TrailBlazer SS
Compatible with 1998-2002 Pontiac Firebird Formula, Trans AM
Compatible with 2005-2006 Pontiac GTO
Compatible with 2004-2007 Cadillac CTS V-series
Compatible with 2008-2009 Saab 9-7X Aero
92mm/102mm Diameter
- Intake Manifold Height: 8.26 inches
- Intake total length: 19.2 inches
- Material Thickness: 3mm
With Rear Map Sensor Port
- Fit for 12592525 or equivalent LS3 Style MAP sensor (M12 x 1.25 port)
- Please block it if it is not used.
Aluminum Alloy
- 3MM thickness T6061 Sheet Aluminum
- TIG Welded
- Polished Finish
- Stable and not bend
- Improve throttle response
Installation
Customer
Reviewed in the United States on September 22, 2024
If you’re using a truck 5.3 Vortec motor you will need spacers if using the stock injectors. They are about 1/2” too short and the rail supports won’t fit. I found some on Amazon and hopefully they will work well.
SloppyMechanics
Reviewed in the United States on June 23, 2024
I bought two of these accidentally but it gave me an opportunity to see if both had good quality control, I have to say both were totally level, clean, and flat against heads in all 4 corners without gaskets.I bought intake and rails with no throttle (I have a 92dbw) it is clean with no imperfections rails had zero burr’s in them and fittings all went on without leaking, comes with crossover I didn’t use and I was totally blown away both are flat and don’t have a scratch or ding, these new intakes are much thicker when you knock on it it sounds like a quality intercooler end tank very dense, I will be dyno testing one on a twin turbo car and we’ll see how it acts, with people wanting 300+ for stock intakes this very well might be the best solution.The only con I had was fuel rail hold downs pushed my injector and hat combination towards valve covers but they’re just stamped steel and I was easily able to bend them to appropriate angle. I’ll deal with that as it might be my fault with spacers or just plain for the price I will lean on it to fix it, anyway looking forward to updating after dyno and what I think.
Valdir alves
Reviewed in the United States on December 9, 2024
only fits cathedral heads
Ralph
Reviewed in the United States on October 30, 2024
Very satisfied with this product had to order two for both my LS projects
christopher Robert meyers
Reviewed in the United States on April 23, 2024
The flange does not have relief cuts in it for the head bolts, causing the flange to not sit flush with the heads creating a massive vacuum leak. Other than that the hardware want the greatest but everything lined up correctly
chantal ross
Reviewed in Canada on April 18, 2024
Cadeaux très satisfaite
Tanner
Reviewed in the United States on April 1, 2024
Look at the pictures they have, the fuel rail hold downs are inside then outside of the fuel rail. These fuel rails will not work what so ever. I’ve tried new orings and modifying the hold down brackets. I cannot get them to seal. If you need a good insurance claim due to a car fire buy this kit.
Moises
Reviewed in the United States on August 30, 2023
Nothing lined up i thought I’d be a good product but it’s not . Do not buy .
Scott
Reviewed in the United States on February 24, 2023
Intake was distorted, sealing surface angle was different from heads.
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