ColtGT4g63

Thats a good price. I'm not sure if the 2000 came with the LS6 intake, but if so then you can expect to see anywhere from 315 - 325 at the wheels. Some guys get stronger motors then others. And of course if you add headers, exhaust, intake, cam, you can expect to get more. Theres plenty of info on here of mods, and what people have used. My car for instance, has shorty headers, 2.5" dual - 3.5" single exhaust, a torquer V2. cam. and 243 casting heads. Dyno'd 411hp 380tq. headers were 400$, exhaust was roughly 300$, cam was 250$ used, and the heads were 525$ shipped. 1500$ for roughly 100hp increase isn't too bad, no?

As long as whoever reprogramed your PCM before did not lock it, then you should be able to. I had the same concern before purchasing HPtuners. Seems to be working just fine! Just make sure you wire in the OBD2 connector properly.

Cool, I use to have that same cam with a 112lsa, Drives very well! I upgraded to a Torquer V2 though, I wanted some rough idle action.

Congrats man! Thats a good lookin Z ya got there. What all do you have done to the motor?

Thank you for the heads up! I've been calling AZZCAR for over 4 months now getting the same answer, "Call back in 3 weeks". I don't like the re-drilled stock bar idea.

I got me a Zt-2 + ZR-2 Red Digits Multi Gauge Combo, from zeitronix.com, and I really couldn't ask for me. I spent around 400$ bucks shipped. well worth the money. And I purchased the standard HP tuners program for 500$ Alot of money to Tune the car, but I can tune it as many times as I want, and make any kind of other adjustments that I want to. Its pretty awesome!

I probably have ran the car leaner then any car should ever run, period. The guy I got my mail order tune from didn't do something right. When I put the car on the dyno, the AFR showed 14:1 at WOT, by 5500rpm it creped up to 15.5:1. At that point I immediately purchased HP tuners and a wideband. Never looked back. I run it at 12.7 - 12.8:1 at WOT now. Feels very strong.

Not sure, but the LS6 heads have 3cc smaller combustion chamber. So whatever that is worth.

Awesome man. I've got two extra axles here at the house if you get desperate. When I raced at the track, I broke an axle with my street tires. I threw on some dinky 22 x 8 slicks and didn't break anything surprisingly enough. It was the wheel hop on the street tires that did it. So I ended up finishing the head swap. Most annoying part was swapping the comp valve springs over from my ls1 heads over to the new ones. Also, torquing the most outer head bolts is a pain with the exhaust manifolds in there. But other then that it went smooth! And the car sound a bit more healthy running at idle. I have not taken it out and given it the butt dyno test.

Nice, awesome! Have you had a chance to take your car to the track on some real tires yet? Which track are you racing at in the video in your sig. ?

There are also places who do CNC porting on brand new factory castings, at a decent price. These heads just happen to fit the budget for me right now. I've got a Torquer V.2 in my car at the moment. Specs - 232/234, .595"/.598", and a 112LSA. It rumbles pretty good and makes some good noise. Untuned it made 362hp and 369tq. letting off at 5700rpm. With these heads, my tuning, and reving it out to 6500 my goal is to break 400hp.

I paid 525 shipped. I got a set of GM metal head gaskets from summitracing for 30 bucks!!! And I purchased a new set of stock head bolts.

Hey Ya'll, I just picked up a new set of heads for the Datsun. Since I'm a bum with a camera I thought I would take pics of everything along the swapping process and post up. So the heads I got are from a 2002 ZO6 Corvette, Which has the LS6 engine. These heads are known as the "243" casting heads. They have a few better things about 'em over the stock LS1 heads, which are "241" casting heads. First off they have a slightly smaller combustion chamber for a slight bump in compression, and improved combustion chamber design. Both intake and exhaust runners flow a little more CFM over the stock LS1 heads also. And exhaust runners have an improved design to 'em. This all should be good for roughly 20hp increase, maybe slightly more on an already moded motor, who knows. Heres what they look like off the car, I have Comp918 valve springs in my LS1 heads that I will be swapping over when the old heads come off. - This Saturday is the big day that I'll be swapping them over. I will be taking a bunch of pics along the way, hopefully it'll be useful to anyone else looking to do the same thing in the future. I just felt like sharing my new purchase for the Z.

Haha, yes! I brought the entire garage to the track. I just upgraded to a Q45 Diff. With biggie CV axles so no more Axle popping fun for me.

Not too many people spin these motors to 7k in general. Some do, most don't. The upgraded valve springs are to allow the additional lift created by the bigger cam, not so much for reving higher.

I have learned from past experience. If you are still on the factory half shafts, then it is necessary to bring at least two extra axles to the track.

Looks about right. I did the same thing with my Harness, and it works great! Actually just got back from a long night of tuning with HP tuners, fun stuff.

I ended up making one for my car, theres not much room at all between the bar and the fuel rail covers.

110mph in the 1/8th? That car is a freakin monster!!! I love it!

Wow, stock cam even? Thats a very good trap speed! What was your 1/8 mile E/T, mph ?

This is exactly what I am doing as well, without any problems.

I use Castrol GTX 10w30, in ALL my cars. Cuz its free from work.

awesome video's man! Reminds me of the good 'ol days around here when you didn't have to worry about getting your car impounded and thrown in jail for the night for street racing. Exhaust sounds great!

For mine, I ended up scoring a fitting off Ebay, it was 30 bucks shipped. I remember spending alot of time trying to locate the correct piece though. Good luck with your search!

The other Z is also a member of this Forum, Synthtk. what made you go with the 78mm over the 90mm? I'm torn between going with a good set of heads / cam, and fast 90 /90 set up, OR going with a turbo kit, Hard decision. I've replaced that axle for the time being. I've got a Q45 diff ready to go on, already got my axles made and companion flanges waiting to go on. AZZCar is out of stock of the Mustache bars though. Thats my only set back for now. I've also got a new dyno video up now as well.