8-10 inches should be ok. I have a Snap-On kit that didn't have a long enough bolt so I went to Home Depot, they were out of it. Here is another tip...In a bind, I went through my toolbox and found that I already had it. as it turns out, Harbor Freight sells a coil spring compressor, it contains 2 rods of the length needed.

The noise is not always noticeable, it also depends on the amount of noise your exhaust and headers makes. It's just the nature of the beast, its really nothing to worry about, many people never even notice it. Maybe your lift was fairly small?

 

22ft/lbs

 

I've built many motors over the years. Boats cars name it and I've built it. It's just I don't have to do the labor any more, and besides my wife said no more engine mods in the garage. I didn't imply that you didn't have the tech knowledge to do the work. I just wanted you to know it was a lot more work than your Z28 was. BTW if a cam is all your going to do, with nothing else to enhance the cam function I think you'll be very dissapointed with the results. You'ed be better off with a set of LT , cat back, intake and tunning. You would have great performance and driveability. Then add a cam and maybe heads. I've done Kooks, magnaflows, 160 stat, stinger intake, FAST 90 manifold and tunning, and It dynoed 427RWHP/405RWTQ with bone stock heads except for valve springs. It's a daily driver. The last mod will be 215 or 225 ET heads which ever ones come in first. Anyway good luck with what ever you choose to do. I just choose to have someone else do it now.

andreas G.

 

Had nothing to do with price. According to one of Dave Hill's chief engineers, the C6 design team decided that the LS6 cam was a little too aggressive for the everyday driving experience, so they opted to achieve the HP and torque gains in the LS2 via improved intake/larger diameter throttle body, bored cylinders, redesigned heads for better combustion and a higher compression ratio, more efficient exhaust system, and better computer ignition control (in fact, you can actually run the C6 on regular gas if you are so inclined...but Chevy doesn't recommend it).

I think their decision on the cam was similar to why they chose not to supercharge the engine (at least not quite yet): they felt the simpler they could achieve some measurable performance gains (and those are driven by what the competition is doing), the more reliable car they would have and they would also be able to keep the C6 in about the same price range as a similarly equipped C5. Personally, I like their systems engineering approach to the C6 design, and when you think about it , they are trying to design a car that will appeal broadly to about 30,000 different owners. I think they correctly concluded that the LS6 cam would not sit well with the vast majority of daily drivers...and then decided that all the rest who weren't happy with the LS2 performance could move up to the LS7/Z06!

 

That's the hardest thing about writing, you can't see the expression on your face. Sorry about my comeback, I now realize you are not what I thought. I thought you were one of those guys who hires everything done, but you are not and I really respect that! Man, I'm with you when it comes to doing mods in your garage, I still do, but I'm starting to draw a line. My youngest just got a 'free' 1979 280ZX and instead of replacing the rear bearings myself, I took it to a shop. I'm just getting too old to do all that stuff. I even went to a shop to get my last clutch installed on my 01 Z28. It took me 3 days to do the clutch on my 94 Z28 and I was sore for a week! However, I did all the work on my 01 mods: cam, headers, cutout, intake, etc. Also, great advice on the other mods.

This is what I'm planning right now for my new C6 A6 Z51 and I'd like anyone's advice:

1) Inlet - I'm not sure how bad the stocker is. Chevy really messed up the one on the 94 Z28 and I know the K&N FIPK was worth at least 20 hp, I saw that at the track. But my 01, the inlet was not bad, just got a lid. I refused to do the free ram air, that was always an ongoing argument over at ls1tech.com. So, my dilema, is the stocker OK? Do I just need to open up the area in the snout to let more fresh air up in that area? My oldest son has a logger and I think I'll run around with the stock one to see what kind of inlet temps I have compared to the ambient. I personally think the best new inlet would be the Vararam, but I'm deathly afraid of a hydrolock. Any advice here is appreciated as a member here has a Halltech for sale (but I have to tell you I'd rather have paper filters anyday rather than the cotton gauze).

2) I will do long tubes. Torn between the Kooks or the LG's. The LG's have longer primaries which results in better low end torque. But the Kooks are cheaper. Another possibility are the Stainless Works for the Z06, if I can get them to do them in 1 3/4" primaries instead of 1 7/8". These have 31" primaries versus 32" on the LG's.

3) Tune - I will get Nic Dejarnis here in the Phx area to do a tune as soon as he gets the A6 software.

4) 160 Stat - Again, a lot of arguments here, but the 160 stat solved a pinging problem I had on my 01 Z28 and it's hotter than heck here!

5) Cutout - I'll leave the stock catback because I want a quiet car, then I'll do 2 manual cutouts if I can find the room. I have an electric cutout on my Camaro and I just hit the button way too often, I'm just asking for a ticket!

Thanks,
Glenn

 

I beleive they did it to keep the C5 Z06 crowd happy, and to not kill the Z06's resale value....at least for a while.

By the way, the heads are almost identical to the one on the Z06, actually slightly inferior, no more sodium filled valves, both are 243 castings. A huge benefit to us, now they will be mass produced and head prices are already falling....

 

IF you want to leave the stock air box, you can mod it this way: First cut the primary covers of flush with a pair of # 33-2136 K&N's, Replace the secondary cover with a 2 inch high piece of foam rubber 2-way taped over the center of the air bridge. Attach the foam to the secondary cover. This will prop up the secondary cover high enough to give a huge air entry over the filters. It woun't make any difference which way the pleats run. The secondary cover prevents water entry on to the filters. I had this mod for over a year then went to a stinger as my cam size grew. I really don't know if the stinger gave me much more than the stock box. It was just a big filter. It's just another option.

Andreas G.

 

I was just quoting what the design team said in Corvette C6. For those who haven't read this book, it's a great walkthrough of all the design considerations and tradeoffs that Chevy went through to create the C6 (and for me, was a major factor for upgrading from my 04 C5 to a C6, once I read about all the changes Chevy made to the C5 and how they arrived at the final solutions. Highly recommend it to all C6 owners). HTH.