I am stuck, i have a 95 camaro a4. The head gaskets went out on it about a month ago so if figured that i would take it out and work on it. Well before i start on it i want to get everything together. So i have been shopping for eveything that i need these last two weeks trying to figure out what i want a need. So i found the stall that i wanted and i bought it, it is a 3400 tci. Just today i found a set of heads that a guy had and he didnt know what was done to them and he only wanted $100 for them went and looked at them and ......... they have been ported and polished, stainless steel valves, and new springs they were amazing. So now i am at a stand still, i want a cam that will go along with what i got and i want something other then the hot cam. I would like to go with something threw comp cams, but i dont know what. plz give me some ideas. Also i need sugestions on ROCKERS, LIFTERS, PUSHRODS, STUDS, GUIDE PLATES, and PRINGS. So if you could give me a good set up that would be a good seat up something that makes alot of low end power.

 

any idea on who ported the heads? how much hp do you want to make? how high do you want to rev the motor? how many miles are on the motor.

Ive had goodluck with my gm-847, but I rev it pretty high. cc306 is alittle smaller but still a pretty aggresive cam. 230/236 would probably be the cam i would recommend you if you dont want a real nasty cam, and would match rather well to that stall. you should be fine with stock lifters. I recommend Comp Pro Mag 1.6 NSA rockers, Comp Hi Tech Hardend Push Rods, GM-Guide Plates and Crane 10308-1 Double Springs.

 

take the heads to get inspected and flowed and then pick a cam based on the flow numbers and rpm you wont. A good performance heads shop should be willing to help you pick a cam to match the heads

 

The guy that i bought them off of said that he didnt know much about them that they was done my a head shop in KY. I am going to a auto deisel college and i let my high performance teacher look at them and he said that they were a steal and who ever ported and polished them did one hell of a job but he dont have time to flow test them. He said just stay away from the hot cam and go with comp cam. So now i have got to figure out what i want to go with. The car has 116,000 miles on it, and i would like to stay below 6400 rpms, and i would like to get somewere around 400 Hp.

 

Bump plz help

 

socal gave you the best advice that could be given! Is it not what you wanted to hear? Those heads could have absolutely beautiful ports that flow like crap.

 

Match a cam to the flow numbers of the heads... simple solution... get the heads flow'd. The hotcam is a decent cam for stock heads. Depending on the flow numbers it might be a great option. I guess what Im saying is, dont rule out something until you get all the details.

As far as the pushrods, depending on if the heads have been decked and how much, you can reuse the stock pushrods. The pushrods in 92-95 LT1's were hardened so your good there. You will need all the supporting stuff though like a new timing chain, gaskets, etc. Get some assembly lube also... always good to use that stuff, even with roller lifter motors.

One last bit of advice, make sure you get a cam with a compatable gear material. My buddie got a cam directly from Comp for his 95 and they used the wrong oil pump drive gear material on the cam and he lost oil pressure in a new motor very shortly after getting everything together.

 

I ran a cc306 before I swapped the ls1 in and I loved it. very lopey idle and great power as well

 

Ok i just found on the side of the heads, it is wrote on the side of them 63cc, what is the stock cc's and how much compression will that give me with 63cc? I called comp today and told them what i had and wanted and they said that i should go with 218 and 224 but i want something that is stroger than the hot cam that is smaller. Also the heads were drilled out so i am going to need new studs and pushrod guide plates.

 

I have nothing against Comp at all, but they are salesmen. You have been given the correct advice at least three times here and now a fourth. Flow the heads!

Now I have gotten that back out I can lend you some well thought out advice. The stock CC's varied between years and castings. I have seen them anywhere between 53 and 58 cc. Your concern should not only be with Compression ratio, but with quench height. That is crucial to making a an engine most efficient and powerful! Once you have determined what deck, height, compression height on your piston, total compression ratio and properly select your head gasket thickness, you want to bolt the heads on. With them torqued down you want to use an adjustable length pushrod to determine the height that you need.
For springs I like PAC Racing as they were the original makers of the 918. At least they supplied the wire for them when they were good. I am not sure if Comp ever got that issue straightened out or not so......The spring install height should be at 1.785 on a stock cut. You may need and spring install checker as well to verify that you have the proper height. Most aftermarket springs require an install height of 1.8 which is close, but not close enough and when your cam pushes it into coil bind bad things will happen.
As mentioned if you run an NSA type roller rocker then you want guideplates and HARDENED pushrods.
At 116k you are past what I feel is a comfortable barrier for reuse of stock lifters. You can go back to a GM OEM lifter or upgrade to the LS7 lifters. Both are the same price or close to it, and the LS7 is rated for higher RPMS. It is a smart idea to check your cam bearings at this time as well. Make sure they are seated and have no scratches, nicks or gouges in them.
Use a quality lube and liberally apply it on the rollers and the cam. You can presoak the lifters for at least 24 hrs and I like to soak the pushrods as well. A roller cam setup does not require a break in period. Good luck if you have any other questions hit us up!

 

Ok i guess i am going this weekend and get them flowed and come back and work from there. Does anybody know what kind of spring presure you need for the hot cam or the cc305,or the cc306? Bc the head that i bought cam with aftermarket springs and i am going to see what kind of presure they have.

 

Can anybody help me with the spring pressure that i should be running if i decide to go with the cc305 or the cc306?

 

I checked the spring pressure today and they are 145lbs. Is this to much or to little for 503 or 306? I also dropped my heads off today to get them flowed so bye the end of today i should know what they flow.

 

OK..
EXHAUST
200------97.34
300------139.38
400------157.00
500------166.42
600------169.56
650------178.20
Intake
100------84.78
200------144.44
300------189.97
400------217.45
500------230.26
540------230.79
600------226.08
700------222.31
The guy that flowed my heads said that the 503 would be a pretty good cam. The 503 with 1.6 rr the exhaust lift is 544 and the intake lift is 536.53.


So now that i have got them flowed give me so advice. Thanks for all the help so far!

 

ANYBODY???? help me any suggestions????

 

Yeah the 503 would work well with those. That is not a top notch port job tho I can tell you that.

 

I would have to agree. The low lift #s aren't to bad, but the mid and high lift #'s fall off pretty quick. I'm no expert and maybe the heads will work decently, who knows?

 

How is the 503 is it a good cam, and is it street able? What are some opinions on the 503?

 

The 503 is a good cam. It has decent low end and strong mid and top end performance. It is easily tuned and puts out some very nice numbers. It has a choppy idle and good street manners with a little cam surge.

 

i would see if i could get someone else to make those heads flow before i put them on seriously.