ok so im replacing all my bearings in my motor and i notice the cam is worn...i have 102k on the motor and i pulled it to replace the oil pan but figured id do some preventative maintenance... i wanna buy a new cam but im not rich and don't wanna have to modify my whole engine and have crappy gas mileage..i was thinking cc305 or 305...what are your opinions...i just want a little bigger than stock since its a daily driver and i plan on using stock heads and lifters... i am eventually gonna get some 1.6rrs but as of now i just have to get it back together...what are your opinions on these...also will they fit on a bone stock lt1?

 

For a near-stock motor I like the cc304 better, I drove around with that one for 3 years and it was great. Responds well to 1.6 RR's and head porting as well. One word of caution with either of those, make sure you check for coil bind when you go to the 1.6 RR's, it gets REALLY close with the stock springs just with the RR's alone. Better to just replace the springs when you do the cam swap anyways, especially since you've already got 102K on the motor....you don't want to get into valve float.

 

i called summit and they recommended lunati 54742......whats a good cam to just throw into a stock lt1 ??? im soo stumped

 

also i don't have money for springs rite now...its gonna be all stock for about a month till i get some money....can i just throw the 304 into my stock motor and drive it? also does it lope at all?

 

Lunati shows the duration on that (at .050 like Comp measures them at) to be 207/213, pretty close to what the Comp 304 is (210/220). The lift is a lot less though, at .416/.447. Stock on a '94 LT1 is .447/.459 from what I can find online. For the $250-$300 you're spending, why go to a smaller cam? It sounds to me like the Lunati will cost you a few HP, unless I'm missing something here

 

The 304 had a very mild lope at 650 RPM idle, and it easily passed smog here in CA. The stock springs will most likely not work with a .500+ lift cam, call Comp to make sure. Coil bind = BAD

 

lol ok cool thanks for the help brother....i live in mi and we don't have emissions... ok ill call comp cams in the morning to make sure but overall you liked your 304? did it give you a noticeable gain in acceleration or mid range? im eventually going to change springs but ill call in the am to make sure...but if you were to recommend springs what would they be?

 

If you plan on putting anything in other than the stock cam, you're going to need new springs - there's no way around it.

IMO, the CC304 is hardly better than stock. I think you'll be disappointed.

 

ok well im kinda going for a budget stock rebuild with a newer cam.....im planning on building the motor eventually...i just want a good running car this summer and i dont have alot of money... whatta you recommend? also what springs do you recommend?

 

If you use stock springs with a larger cam, you won't have "a good running car" for long.

 

I personally liked the 304, there's a good bit of difference between it and the stocker. That being said, with no emissions to worry about I would go for the 305 or maybe the GM LT4 hot cam. The LT4 Hot cam is sort of halfway between the Comp 305 and the Comp 306, or the GM 847. I think the 306 and the 847 would be a bit large for an otherwise stock motor. Lots of #'s here, but first I would heed the advice given about the springs. They aren't that expensive, and not that hard to replace.

 

ok i called comp cams and i talked to one of there tech guys and he said that
07-502-8 would be better for my application he said its closer to the 304 but has more lobe separation for a better sound...what are your opinions on this cam??? heres a link to all the info

http://www.summitracing.com/parts/CCA-07-502-8/


and im buying new valve springs....my question is this...with this new cam am i going to have to get a mail order tune or can i just put it in and drive?

 

Still like the 305 better, but I've never tried that one Summit recommended. I have personal driving time with both the 304 and 305, so I'm probably biased towards them. They ran well, idled nice and generally did everything I wanted or expected them to do. The 112 LSA on that cam from Summit is the same as the 305, and either will chop up your idle just a bit more compared to the 304, but I think you're giving up HP from the lesser lift on the 502 compared to the 305

They will run without a custom tune, but you're handicapping yourself and not getting the full potential from them....sorta wasting some hard-earned bucks is how I see it. Even a stock LT1 with a cat-back and CAI intake will benefit from a good tune, and once you're swapping cams it's even more important.

 

ok jason im taking your advice...i just ordered the 07-304-8 comp cam...i also ordered comp cams valve springs....also can i use stock lifters for a month untill i get some money to buy new comp cams lifters?

also i ordered new valve stem seals since they were only 5 bucks....do i need to get a new timing set or no?? i would like to use the stock one if possible.


last ?? should i just replace the 304 with the 305 since they cost the same......how much difference is there in gas mileage between the 304 and the 305?? also is there that big of a difference or should i just keep the 304....btw i plan on eventually getting a pcm for less tune in a month or so

 

for a very mild cam setup I'd scoop up a used LT4 hotcam for cheap