Ls6 intake or 102 bigmouth?
 

Stock z28 Ls1

Trying to start with bolt-ons in which I will see the biggest gains as well as cam/pushrods/springs/rocker arms/valves.

If someone could moreless give me a roadmap who's been there and done that so I'm not spending in areas where attn isnt as much needed.

Looking for streetable 450-500rwhp

I already know what I'm doing with tranny/ rearend,

But roadmap on engine mods with round about hp gains would be very appreciated. (round about, no ones pointing fingers if gains aren't on the money, just a good idea)

Thanks for any help or experience given, Blake

TFS makes a heads/cm kit for ls1 for round $3200. Supposed to make 515hp. Might be worth reading into. Thats what I put on my TA its just not dyno'd yet.

What year is your Z? I think (dont quote me) all LS1s year 2000 and up already hve the LS6 intake. So if yours is 2000 or above then i would go with the FAST 102.

Ok I'll most def look into it, almost seems too easy, lol
It's a 99 z28 and the entire car is bone stock. Bought from a 62 yr old real estate agent. It's hard to find un molested ls1's but luckily I can be the first to have my way with this one.

Ok, here we go....

Your car, if not an 01-02, came with an LS1 intake. 01-02 came with LS6. Personally, I'd run a 92 or 102 over the LS6. Understand this means a new TB as well.

Long tubes and a good exhaust or duals a first. Period. Car needs to exhale. They're ridiculously choked with the stock exhaust. Then a good lid. I'm partial to SLP just because mine fits good and I don't have to worry about the neck cracking like the FTP's.

A ram air set up helps as well. Again, I'm partial to the Chrs1313 ram air because it's a sealed system and, I have experience with it.

Get your exhaust and intake done first off.

Ok, I appreciate that info, I was going to leave the exhaust alone for now, but if it's going to restrict all of the work I'm doing then I'll knock it out first. Do you suggest a certain brand? And should I go with 1 3/4" or 1 7/8" primaries on the long tubes?
I'm guessing once this is done, I'll have to find a "buddy" to inspect it for me after I pull the cats.

Go with 1 7/8" primaries and be done with it. With any future mods you'll be glad you did.

Will do, I appreciate it.
Any other tips or input from anyone else?

tsp 1 7/8 headers with their 3 inch true dual dumps.

Does anyone know of any performance dyno/tune shops in the Dallas area?

2000 does not have ls6 intake

only 01and 02 cars have ls6 intakes.