Both as long as they are not milled.

Ok I have The G5x3 on a 112 and love it. Fitment It fits under my AFR 59cc heads with a stock size comedic no problem I rev it up to 6800 I shit at 6400-6600 In my sig is three exhaust sound clips one with stock muffler one loud mouth and one duel cut outs. It will be tight if you mill stock heads "alot".
Drive ability is good stop and go is kind of a pain but livable. I have spohn torque arm so I have road noise and more bucking below 1500 rpms. Cam's not made to run below that. Cruising its awesome 2000-2600 its very tame an docile but as soon as you go above that it starts to ramp very hard and keeps going harder and harder. Cam produces a very good torque curve. A 114 Will probably net you a few more peak torque numbers probably 5-15 as I have been seeing and around the same peak HP. This cam needs the right combo of parts to compliment it though Some good headers, (which I don't have need stepped ones) and a FAST 90/90 set up will set the cam apart. A MAMO ported FAST has proven Excellent numbers with this cam. Tuning I have run the car in every mode possible It hates the MAF but with a shit load of time can be run with it I choose not to because I think it is a restriction. I run the car in OLSD. I get better fuel command in this mode and it runs better. It needs to be tweeked a little more often due to my 98 operating system. I would Definitely suggest this cam to anyone who wants very good power and street-ability.
Cam specs are not released but it has been said that It checks in at 234/242 .600 .610 112/114

Yup, those are the specs that mine measured at as well. I love my X3. I picked my setup to rev to close to 7000 without going over. That's why I went 112 instead of 114. I wanted it to pull hard and blow its load and not leave me wishing for a forged bottom end to rev higher.

I've never heard of any car-educated person not liking this cam. Only one guy and he seemed a little like a 'net learner instead of a car driver, if you know the type I mean.

That's not a copy. The G5X3 is:
234/242 .600/.610 112/114 +4


I made the mistake on my first h/c swap of not flycutting, and it was STUPID. There's no reason to not flycut. It's cheap and simple, and you get the most out of your setup. It drives better and pulls better and just makes better power. LG and TEA both agreed that this cam makes far better numbers with proper compression than without.

Flycut if that's what you need to get the proper compression ratio. I did, and it was worth every penny, and all 30 minutes.

I would imagine if you are going with an aftermarket head that is milled,it would be a good idea to flycut. I've already talked to LG on the matter and they say for the most part an x3 will clear with stock unmilled heads. I'm currently running the x4 on my Z28 and didn't flycut. The cam cleared very well. There again I have stock unmilled heads. Depending on what heads you decide to go with they can actually gain clearance. It sounds dumb because usually they are going to have bigger vavles but when they change valve angles from stock 15, to 13 they say they gain a couple thousands of clearance. Correct me if I'm wrong on this.

Waverdr, are you running on the stock 243 castings and made that whp? If that is the case, I may just leave the heads till next year and put the cam in with the headers and the rest of the stuff mentioned.
That rocks
Don :drive:

No tuners out in hawaii, but i really just want over the 400rwhp mark and then i will work from there. im thinking of going the 7/8 headers because of the long run and i dont want todo things twice but i will do more research on that. i also have the ls7 clutch and donot launch over 3,500 so it think the setup will be good for high 11's and im sure i will eventually buy my brothers kit and spray a 100 shot.

AFR's Cut to 59cc Which would put me around 11.4-11.5 Correct me if I'm wrong. Seems to be plenty good for this cam.

Actually there are longer lifters. I have crane.

I'm no expert but my understanding is that many of the the bigger cams have a smaller base circle to get the higher lift. As a result, the lifter comes out further so there is less material holding them in place. It seems that depending on the tolerances of the related parts, some people have problems while many do not.

Both Paul and myself had issues where the lifter actually turned resulting in ruined parts and requiring a rebuild.

By the way I have that cam on a 112 w/ MTI ls6 stage II theads. Car has stock wheels w/ drag radials and 3650 lb race weight. Back in October I ran a new best of 11.46 at 123.3 on a 1.75 60'. My best mph is a 123.6.

I have everything that's in your list except my cam is a custom grind but its almost the same as a g5x2 and I have 1 3/4 Lt's. Also I don't have the ud pullies and I made 440rwhp. So i think you'll be looking at more like 450+.

My numbers were made with untouched LS6 heads...they never were lifted from the shortblock and the car ran hard...

I'm now running this combo with 59cc ETP's, a ported fast, and an EWP and let me tell you the car moves!

No credible dyno numbers, but on my street setup I went 1.82 60', and 11.56 at 122.xx at +2000 DA!

Obviously I'm very happy with the setup and personally feel the car could touch 10's in good air on a CCW drag pack....

ok guys thanks for all the help i will do some more research some more and i will let you know how it goes.

good luck wiit it bro- always here good stuff about that cam, especially wit the afrs :)