When I spoke with MSD, it was in reference to their LS7 style intake manifold, as I have a 7.4L engine with ALL PRO LSW-12-1 cylinder heads, a F.A.S.T. 102 intake manifold and a 90 mm GM throttle body.







They at that time did not have a manifold for either a LS1 or LS6 engine.

 

"Pumba", my guess is the information MSD gave you at the time you called may have been accurate, however, since that time, MSD has released both an LS2/LS6 version of the Atomic Air Force manifold and a version for the Gen 5 LT1.

Based on what I've seen elsewhere in this thread, I believe the MSD Atomic Air Force manifold for LS6es (PN 2702) will fit a C5. In any event...if it won't, I'm gong to find out fairly soon.

Hopefully, the OP, "slo01x06," won't mind if I hijack his thread and use it to give you folks a running account of my experience installing that manifold on an '04 Z06. I should add that, installing the 2702 AAF on an LS6 requires changing/modifying some other parts along with adding some additional MSD parts. First, you have to either modify your LS6 coolant pump to clear the intake manifold or you have to change to an LS2 coolant pump and thermostat which is what I did. Also, you have to convert to an LS2 fuel rail. I ordered both of those parts from Zip Products. Finally, in addition to the manifold you need MSD PN 2709 Throttle Body Adapter and you may need the MSD PN 2705 Adapter Kit for the injectors.

The LS6 engine in our test car is stock except for Crane 1.8:1 Gold Race Rockers and Crane dual valve springs, a Green Filter in the stock air filter housing, a set of Denso IT-22 Spark Plugs, Gibbs Driven DT-40 5W40 engine oil and my own ECM calibration. The rest of the powertrain is stock except for a McLeod Aluminum flywheel and clutch kit, Red Line Super Light Shockproof Gear Lubricant in the trans and Red Line Heavy Shockproof Gear Lubricant in the rear end. The car also has a Fluidyne Radiator (no longer available, unfortunately) a lower-temperture thermostat and straight water with Red Line Water Wetter additive for coolant.

Next step is to take the car to Westech Performance Group in Mira Loma CA and run it on Westech's SuperFlow WinDyn chassis dynamometer to get some baseline power and torque numbers.

After that, I'll swap manifolds, do another cal for the ECM then take the car back to Westech and run on the dyno a second time. It will be interesting to see what the LS6 version of the AAF manifold can do.

I did the same swap on my 2012 Z06 and saw about 22 more horses on a near-stock LS7. That's an amazing increase for just an intake manifold change.

 

In for results..

 

Turns out Westech Performance Group is super busy. The first time I can get in there for an early morning session when the air's good is 28 July...couple weeks from now.

In the meantime, in the next week or so, we're going to do a photo shoot in the studio with the manifold split open and I'll try a post a few of those images.

 

Was at WesTech last Thursday right when they opened.

We got the car on the dyno, tided down and with the fans–their big round fan and my Maradyne Fast&Cool floor blower–running, made three passes. Each run was so consistent they virtually mirrored each other. The three run average was 380.7-hp and 376.6-lbs/ft at the wheels SAE-corrected. Figuring 15% loss, that's about 448-hp.

Mods to date are: Crane 1.8 Gold Rockers, Crane dual valve springs, Crane pushrods, Denso IT-22 plugs, MSD SuperConductor plug wires, 170° thermostat, Gibbs Driven DT40 5W40 synthetic oil, Corsa X-pipe, Green Filter, my own ECM calibration, Red Line Superlight Shockproof trans lube and Red Line Heavy Shockproof rear axle lube.

Next step is to install the MSD Atomic Air Force intake manifold, then go back to WesTech and test again.

 

how did the install for the intake go for the atomic intake I have a ls2 and am wanting to order one from peak speed and have them even port it as well

 

yes will fit if cut fire wall and change motor mounts .

 

Lol why did you bump an old thread without reading it first and realizing that MSD makes C5 intake manifolds too now...

 

Hi there I'm in the market in changing my 92mm fast on my 04 c5z looking to install a msd mainafold and nick Williams 102 tb wanted to know if I would fit with no issues also I had have my head miled thousands dont know if that would help out by doing the mainafold swap current build is 243 cnc milled .30 58cc from west coast cylinder heads speed engineering 1 7/8 lt header 92mm fast mainafold lingenfelter 90mm throttle body 65lb fast injectors e85 and hawks 3rd gen cheater cam and a veraram cai tuned from new era by going with the msd mainafold and nick Williams will I gain

 

Well first I have a C6 I see you have a c5. I got my msd intake and throttle body from peak speed but I had them port the insides of it as well the throttle body yes got that from them untpuched. I think this will work with you're setup fine but don't forget the rubber coupler to connect the intake to throttle body. My car is stock basically intake, varram air, throttle body, cats grouted out a tune, and plugs wires and a thermostat my car did 396 at wheels with very modest mods.. hell yeah that intake and throttle body worked

 

Stock really for most part no cam no headers no under drive pulley. 396 rwhp

 

Kool thanks for the heads up

 

It fits fine it’s similar to a fast 102, you’ll have to do the typical clearance on the water pump and I think I had to grind the tb some also, it will pickup power in the higher rpm’s if that’s what your looking for