Just wondering if there's anyone around running the GM ZZ-3/ZZ-4 cam? The specs are 208/221 .475/ .510 112 lsa. What kind of times and mileage are you getting with it and what other mods do you have? Thanx alot!

Buy something bigger, unless you don't want to go fast. If you want a little more power then its fine. But If your serious about a 1/4 mile car then go bigger. IMHO I think the ZZ4 is way to small for a 350. But that's my opinion. I ran a 13.4 @ 103 on it w/ the mods in the sig. Basically a stock L98 corvette motor w/ a ZZ4 cam. That was w/ programing for a 305. Now I'm running a CC306 and am looking at the HSR. That should be interesting. On the juice it pulled 12.45 @ 109.

dyno = 267/356 N/A

I guess you are right.. a 13.4 can't possible be considered fast. WOW..ask all those LS1's who wonder what the hecks is in that car.....

The ZZ3/4 cam is good, and will Humilate a lot of cars, but there is better.......But if you want to make fun of alot of cars...it will work good.

T

I'll have to agree w/ Free Bird. If your going to throw down for a cam and go through the task of a cam swap, get something a little better.

NOTE: I am NOT bashing the ZZ4 cam. I currently run one. I have a 357 TPI setup w/ Trick Flow Twisted Wedge heads. My best time is 13.5 @ 103.7. I put down 271.3 RWHP and 349.6 Ft/lbs of torque, which I feel is pretty respectable, but I think I could do better w/ a better cam. Its definatly a good cam, but its not the "be all, end all" camshaft. I got mine for free from somebody who was doing an upgrade from the ZZ4 cam, thats why I chose it

If anyone finds the "be all, end all camshaft". Let me know ...but I consider it a great cam for a daily driver.


Yes there are better cams for 1/4 mile, but for a DAILY DRIVER it is hard to beat!!!

I want to hear from people with better cams that drive their car over 12,000 miles a year back and forth to work......

Thanks

I keep looking at the ZZ4 cam from a money standpoint, but I'm also considering one of Comp's that specs out around 210/220 @.050" & .510"/.520 lift on a 115 LSA.
I wish I knew how much I could get by with and still have a mostly stock sounding idle.
From my experience with carbed small blocks, I think the 214/224 degree & up cams probably lope some and I don't want that for my Formula.
If that sounds weak, don't worry - I run a BIG (278/282@.050") solid roller in my 61. I just want to keep this car acting & sounding like a daily driver should. I don't hear those new Z06's camming & shaking, but they HAUL. That's what I'm after.

i'll let you know shortly how it does with a stock intake set up. putting it in this week.

Thanx for the input. I've got the motor on a stand now, and I came across it real cheap, and my car is a daily driver, so from what you all said, this cam outta behave well in my car. Thanx again.

You just did.

CC306 = 230/244* 112 lsa and .544/.576 w/ 1.6rr.
Shootin for an 11 sec. daily driver. It all comes down to how much you can put up w/ on a daily basis.

I have 3.42s, 160 stat, 88 gta aluminum drive shaft, air foil, ported plenum, timing at 12 degrees, 50 psi fuel pressure, put a slightly ground dime in it to get it to 50. Home made ram air behind my fog light openings. ZZ3 camshaft, stock 1.5 rockers, headman 1 5/8 headers, dynomax super turbo muffler, Trans pac shift kit, stock chip! I have ran a best of 13.11 at 101.6mph. I thinks that pretty good myself. I bet If i get new springs and my heads cut to accept the new lift it will see 12s with 1.6 rockers. Im building a 383 now. But I think that cam is a very good cam for the money.

Free Bird, I noticed you live in dale city. You wouldn't happen to live off of delaney road, would you?

How did you know?
Give me a call man, I go to the BK in manassas almost every weekend. 571-212-6755

From your sig and location. I talked to you a while back in front of papa john's, and it must have been before you got all that stuff. I'm the guy with th Dark green fading to purple 91 Formula. Its funny, cause i go up to BK nearly every weekend too, well, when its warm. I seen you up there once i think. Names Jared. #'s 703-309-9434. I'll try to give you a call this weekend.

Sorry about not posting on topic guys, its just a small world, and surprises the hell out of me sometimes.

Thats cool. No worries. I live up in MD, we should all hang out and do some cruisin' sometime. It would be a good way for me to get some 'break in' mileage on the new motor!

have you considered an LT4 hot cam? it's 218/228 at .050, .492/.492 lift with 1.5:1 rockers. i have it in my carbed engine, but i'm converting to LT1 intake now. It's definately streetable

Yeah, but the zz4 cam came to me pretty cheap, so it'll do for now. I'm swapping to a set of aluminum heads next fall, so I'll probably end up doing a bigger cam at the same time. I got all kinds of goodies for the aluminum heads....

Granted the ZZ4 cam is small, but I run the 1/4 at 13.4@107mph..
on my first ever visit to the track.

I had a ZZ3 cam and I ran 13.2-13.3 at 108 with AFRs and a Superram. Not bad for a "weak" cam, as long as you have good flowing heads. It's a great cam for the money.

Nasty_Bird_'90
Others might or probably WILL disagree but with the mods in your signiture, I think the ZZ4 cam will also make your car faster than with the bigger one in your signiture. I do agree that when you upgrade the heads you should find a bigger one though.
Good Luck!

The use of 1.6 rockers should make a big time difference. Lift is more important than duration. Especially with TPI, to build horse power in a lower band should be the goal. Pushing torque up into the rpm band closer to the horsepower will give you far better street performance. It's what makes efficiency... Volumetric efficiency.
Also .. All cams are not created equal. Taken right out of a book here. The same lift and durration doe not provide for the same application.
I am looking at the GMPP book and it shows all ZZ motors with carb'd intakes on them.. I don't know the answer to this but were they all designed for carb's. and if they were not, why do they use a different grind than them than on the ramjet motor ?

I think they want the quickness that's comes with building all that torque in the rpm range in line with horse power. Keeping the volumetric efficiency inline.

Cool! This is just the post I was looking for. This is the cam I finally picked out for my 350 TPI motor I'm in the process of building. I looked at tons of cams trying to figure out which one I should go with. The basis for my choice was to try and find a cam that was an improvement over the stock one, but still tame enough to function as a daily driver and not require all sorts of computer reprogramming. It's reassuring to hear from other members that this cam works fairly good for that purpose. I'ts been a while since I did my research and I was still hoping I made the right choice as I'll probably get busy this spring getting the 350 put together and installed. I've also ported the stock iron heads out to match the gasket size, and am using the AC Delco ZZ-4 valve springs. I had the bottom end balanced and am using Keith Black hyperuetectic pistons and speed pro plasma moly rings. Hopefully this combo should perform respectably. If anyone has any additional suggestions, any input would be appreciated!

Would this cam work for supercharged applications? I have this cam in my engine now but am planning on supercharging it very soon. The engine is out so now would be the best chance to swap the cam. Whats the story here? Thanks