^^^^They really don't flow much better than a stock set of untouched heads!

 

I dont plan on putting that much lift on them. The man that flowed my heads, we was talking before he flowed them and we talked about the 503, well when i went to pick them up he asked me if i had them made for me, bc of how they flowed he said that that 503 would be perfect for those heads. So i just want something that is good and stong at low end and mid range, i am not much of a highway racer. So is there any other cam that would work good with these heads?

 

I dont care that they dont flow much better than stock heads. I wasnt looking to buy new heads or anything like that but i found a guy with these heads and he only wanted 100 dollars for them so i dont care. They have new springs, retainers, and stainless steel valves. So for a hundered dollars i dont see them as to much of a bad upgrade. I just want to know if the 503 is my best choice?

 

What do you guys think about 503? Is there any other cam that would be better in my case? Also is 145 spring pressure to much?

 

503 is a good choice in my opinion. Spring pressure is ok.

 

Ok well i have decided that the 503 is what i am going to go with. So how does this set up look

http://cgi.ebay.com/ebaymotors/COMP-...spagenameZWDVW

http://cgi.ebay.com/ebaymotors/COMP-...spagenameZWDVW

http://cgi.ebay.com/ebaymotors/COMP-...spagenameZWDVW


And also some 1.6 COMP CAMS roller rockers.
Also some push rod guide plates
And new studs

I need some advise to go with on what size studs and roller rockers wether to go with 7/16 or 3/8. What should i do, how does my set up look so far.

 

Well I would check around with some of the site sponsors now that you have what you want in mind and I am willing to bet they will price match or beat what you have found on Ebay. Remember without the sponsors forums like this cannot continue and they are a great help when you are in a jam.

That being said, I would also encourage you to look at the LS7 lifters or the GM stock LT1 lifters. Either are cheaper than the Comp R's and IMO both are better. You should get an adjustable length pushrod checker to dial in your valve train before you buy pushrods in my opinion.

Stock studs are 7/16 bottom and 3/8 top. You could beef it up with 7/16 upper and lower, but 3/8 will work as that cam doesn't have an extreme lift or high rpm range, but 7/16 is good insurance.

 

sounds like a good setup

 

So what about these ls7 lifters that i keep hearing about. Are they better then the comp cam lifters that comp sugests? Also does anybody have a web site with them. Also about the guide plates does anybody have a web page were i can get some ones that are good and will work.

 

Those heads will slow your car down over stock heads, expecially if you leave them at 63cc chambers (stock chambers are 54cc). Whoever ported them obviosly didn't know what they were doing judging by the flow #'s, so chances are they just hogged them out thinking that would make them flow good and make power. I'de cut my losses and put the heads up on ebay if I were you. There's a reason you got the heads for $100.

 

No No No they guy that flowed the heads said that they were great looking and the 503 cam would work perfect with the heads and produce good power. Also the guy that flowed them wasnt some dumb *** he as been doing it for 24 years and is very well known. So i am going to take his word that they will work good.

 

That guy is a dumbass if he thinks those heads are good. And making a head look good doesn't mean it will perform good. And why exactly do you thing a head that will lower your compression over 1 point over stock is a good thing?

 

Ok well your the first person that has said that they are shitty and that i shoud sell them. The heads have been milled down so the commpression will be higher not lower so how are you getting that they will be lower??

 

Is there anybody else that has any advice with this......

 

Because you said they were 63cc's. And if they are indeed 63cc's you won't be able to mill them back down to the stock chamber size. And if they took that much material out without knowing what they are doing they would have ruined the chamber shape. And no head should lose as much flow as yours do in the high lift. That indicates an extreemly turbulant port.

 

Another slow LT1 in the making. LISTEN to the experience given here and stop giving LT1 owners a bad name at the track.

Dump those heads in the trash where they belong.

Do your head gasket job, throw a cc503 in it and call it a day.

 

But the 503 with the 1.6 rr doesnt have that much lift i wont see above 570 i think. So what does it matter what it does that high. I am just looking at the fact that i got a set of heads, that are much better then the stock 115,000 mile stock worn out heads. So no matter what happens i have a pretty much new head that i dont have to mess with with that is already. wasnt planing on buying new heads buy for 100 dollars y not. So your telling me with putting these heads on my car that the car is going to slow down??

 

No they aren't. Just have your heads freshened up and put back on. Why do you think the guy sold the heads for $100? People aren't stupid enough to sell good heads that cheap when you can sell stock unported heads for $200.

 

they guy that i bought them off of didnt know what they were or how much they were worth. The valves alone are worth 300 dollars. That alone tells me he didnt know what he had. So your telling me that if i put them on my car that i will slow it down?

 

Ok well i need more peoples advice bc i cant just go off of one person saying that they are going to be bad. If they are not going to work i have no problem with getting rid of the heads and going another way. Buy i need to hear it from more then one person. Bc i have had atleast 5 or 6 people that said that they will work fine. So i am not trying to argue or pick a fight with anyone. Buy i need more suggestions. I am sorry if i have caused any trouble. But i dont know much and i am just trying to get my car put back together right and not have to mess with it again, i am going to college and working with a budget and i thought that these heads would be a good thing for my car but maybe not. So i would just like to see some more suggestions and some more advice. Sorry for any problems.