LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Which cam?

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Old Feb 20, 2006 | 10:33 AM
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dubbsix's Avatar
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Which cam?

Can anyone point me in the right direction of a cam that will work well for a 93Z with M6, very minor botl ons? I'd like the cam to be aggressive enough to later work well with a set of stock ported heads.. any input would be great.
Old Feb 20, 2006 | 10:53 AM
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Re: Which cam?

cc305? or cc503 would be nice. they arent tooo big and they would work well. If you didnt mind a huge exhaust lope..and sacrifice a little drivability go with the gm847...awwwsome cam in my opinion.
Old Feb 20, 2006 | 11:00 AM
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Re: Which cam?

thanks!

Now what is the going rate to have a shop install a cam for you? I dont have the space to do the job myself..
Old Feb 20, 2006 | 09:18 PM
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Re: Which cam?

Originally Posted by dubbsix
thanks!

Now what is the going rate to have a shop install a cam for you? I dont have the space to do the job myself..
A local place charges 700. If you do it yourself and buy all the parts yourself, it would cost around that also, but shops won't install new springs or valvetrain, only the cam. Unless of course you want them too. I planned out my cam swap and it came to around 700-750, and that is with me doing the work.
Old Feb 20, 2006 | 09:56 PM
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Re: Which cam?

Well i'll start saving my pennies now lol. Its hard to take your time when you are talking about working on something you are so emotionally connected with, but i guess i'll have to. I would much rather do the swap myself so that any money i save on their labor could be used toward other parts.. but living in CA... no garage... no fun!
Old Feb 20, 2006 | 10:10 PM
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Re: Which cam?

Originally Posted by dubbsix
Well i'll start saving my pennies now lol. Its hard to take your time when you are talking about working on something you are so emotionally connected with, but i guess i'll have to. I would much rather do the swap myself so that any money i save on their labor could be used toward other parts.. but living in CA... no garage... no fun!
Something I plan on doing (eventually) is slowly get pieces and parts for the car. Like, I want to do the whole cam and stall deal, but I am going to buy springs and retainers first, than rocker arms, than the cam, than the stall. And slowly putting them in over time will help. It is possible to do a cam swap in one day, but that would be the whole day without any problems. So instead of buying it in one big sum, you could spread it out. Just a thought though...
Old Feb 20, 2006 | 10:15 PM
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Re: Which cam?

Yea i understand your method. I guess i can hijack my own thread...

Anyone ever have a rear main seal replaced? if so, how much was the labor? I was at my local stop n lube and they said my real main seal is leaking.. and thats the pesky leak i have been chasing..
Old Feb 20, 2006 | 10:19 PM
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Re: Which cam?

Originally Posted by dubbsix
Can anyone point me in the right direction of a cam that will work well for a 93Z with M6, very minor botl ons? I'd like the cam to be aggressive enough to later work well with a set of stock ported heads.. any input would be great.

Remember it is a '93 and is speed density. It will have to have some dyno tuning to preform right.
Old Feb 20, 2006 | 10:21 PM
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Re: Which cam?

good point... i anticipate some serious dyno time. I have to keep things realistic. I would like to hit the mid 12's with this current (tired motor) and then move onto more serious power levels later on.
Old Feb 20, 2006 | 10:28 PM
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Re: Which cam?

Which is easier to tune Speed Density or Mass Air? and which would yall rather have? I'm Courious someone told me to switch my 94 Z that will soon have a 398 LT4 in it and i was wondering about the Speed Density deal. A guy at a shop told me to switch it over, i was kinda skepical on what he was saying.
Old Feb 20, 2006 | 10:36 PM
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Re: Which cam?

Originally Posted by dubbsix
Anyone ever have a rear main seal replaced? if so, how much was the labor? I was at my local stop n lube and they said my real main seal is leaking.. and thats the pesky leak i have been chasing..
If your clutch needs replacing soon I'd wait until then since you basically have to pull the trans, clutch and flywheel off to get to the rear main seal.
Old Feb 20, 2006 | 10:47 PM
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Re: Which cam?

Originally Posted by 94Z396_0621
Which is easier to tune Speed Density or Mass Air? and which would yall rather have? I'm Courious someone told me to switch my 94 Z that will soon have a 398 LT4 in it and i was wondering about the Speed Density deal. A guy at a shop told me to switch it over, i was kinda skepical on what he was saying.
Mass air is easier but speed density can be made to get it done. A Fast system is basically speed density.
He might have wanted ya to change 'cause he don't know how to work with SD. Mass air would be better for a larger cam and street duty.
Old Feb 20, 2006 | 11:26 PM
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Re: Which cam?

I'm gonna stick with Mass Air. Don't feel like changeing all that over to SD.
Old Feb 21, 2006 | 02:26 PM
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Re: Which cam?

Technically all you have to do for SD is unplug the MAF sensor. The car gets put into SD than, but obviously it isn't tuned for it. Just thought I should say that...
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