Custom Grind Cams For LT1?
reply I havent talkd to him about it lately but i think he was saying my rings would go out pretty damn fast, and it would be hard to get the compression back down with higher flowing heads. He said it would be smarter to rebulid before a head swap, but then i was sceptical when he said i could do a cam and valvetrain and be fine. Im wondering if he thinks when i say heads, he might be thinkin like sb2.2 heads? Dunno though. I just dont have the bread right now to do a full rebuild, my buddies doing a 383, and its coming to about $10,000 after its all said and done. I can maybe do $2000 for everything. At this point i guess ill contact my mech. and see if a small port job is in order.
Last edited by Speed Density; Jan 10, 2006 at 07:51 PM. Reason: hhh
Most mechanics know amazingly little about how engines really work and what can work on them.. The LT1 breaks a lot of the old "rules". Ask him if a 10:1 compression iron head motor will run well on 87 octane and he will tell you no way, BUT that was stock in the b-bodies.
I currently run a 208/221 cam on styock heads and am in the process of going to something over 220 intake with well ported heads, for a daily driver the current setup is pretty good might have gone a little bigger on the cam and mildly ported heads, but never even come close to 230 for a driver. You might pick up a little power but at a signifigant compromise to drivability.
I currently run a 208/221 cam on styock heads and am in the process of going to something over 220 intake with well ported heads, for a daily driver the current setup is pretty good might have gone a little bigger on the cam and mildly ported heads, but never even come close to 230 for a driver. You might pick up a little power but at a signifigant compromise to drivability.
Hi mileage is not a guide to internal engine condition. You need to do a compression check on all 8 cylinders, followed by a leakdown test on all 8. If you get good numbers, then add whatever you want. If you don't, then fix what's wrong, then build.
If your mechanic like to say stuff like "high mileage...", it's time for a new mechanic that knows what an engine needs from the facts, not from stories from his Uncle Joe.
Jim
If your mechanic like to say stuff like "high mileage...", it's time for a new mechanic that knows what an engine needs from the facts, not from stories from his Uncle Joe.
Jim
Originally Posted by DeltaT
Hi mileage is not a guide to internal engine condition. You need to do a compression check on all 8 cylinders, followed by a leakdown test on all 8. If you get good numbers, then add whatever you want. If you don't, then fix what's wrong, then build.
Jim
Jim
Fixing whats wrong is were it gets spendy. I might just wait on this untill i can rebuild to the 383 and do it all right the first time. Im sure there are other ways to get into the 12s!
Originally Posted by 96capricemgr
Really the only wear I would really worry about in an LT1 is bearing wear NOT bore wear.
Daren
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Originally Posted by SStrokerAce
Daren,
You ever check to see how far out of place those blocks you get are? I've had some that can't be corrected with a .030" because the bores are far enough out of place.
Bret
You ever check to see how far out of place those blocks you get are? I've had some that can't be corrected with a .030" because the bores are far enough out of place.
Bret
You have to agree that the average guy is not looking for that little advantage. There is always a performance versus cost factor. It really depends on what the individual is looking for.
Daren
12 Second Club
Joined: Jun 2005
Posts: 1,119
Likes: 0
From: Chitown
I run a COMP Custom Ground cam and stock Ported/Polished opened up valves for heads and am very happy with the combination. Rebuilding the motor as we speak due to a spun rod bearing. It is a .230 .236 .565 .565 on a 112 LSA. And is still very drivable
Originally Posted by GIZMO
Bret,
You have to agree that the average guy is not looking for that little advantage. There is always a performance versus cost factor. It really depends on what the individual is looking for.
Daren
You have to agree that the average guy is not looking for that little advantage. There is always a performance versus cost factor. It really depends on what the individual is looking for.
Daren
Then again factory maching is just that, factory.
Bret
On The Tree
Joined: Oct 2005
Posts: 180
Likes: 0
From: Commerce, GA
Save your money and do it right! Get a package from L. Elliot and take alot of the guess work out of it. People in here should be able to give you his recommendations and numbers to back up his work.
I have a question I want to add to this thread concerning big cams with proper heads. If you have PORTED HEADS, as 1993CaMaRoZ28ofIdAhO is considering, would the 306 be a good recommendation then? I have a Stage III set flowing 270/200cfm and was curious.
I have a question I want to add to this thread concerning big cams with proper heads. If you have PORTED HEADS, as 1993CaMaRoZ28ofIdAhO is considering, would the 306 be a good recommendation then? I have a Stage III set flowing 270/200cfm and was curious.
Launching!
Joined: Nov 2005
Posts: 245
Likes: 0
I have a custom cam from comp. which came from loyd elliott for my 396 project. Its 2XX, 2XX at .050 with .5XX, .5XXift for 1.5 rockers but with 1.6's its gonna be .6XX, .6XX lift. with a 1XXobe separation angle.
Last edited by 94Z396; Jan 16, 2006 at 10:57 AM.
What's with all this 2xx/2xx stuff? Are you running something so secret you think no one has tried it before?
How useful is this:
I'm running a 200x Camaro with a 3xx motor.
The cam is a 2xx/2xx at xxxLSA.
It runs 1x.xx in the 1/x mile.
I am xx years old.
Shhhhh... it's secret.
Jim
How useful is this:
I'm running a 200x Camaro with a 3xx motor.
The cam is a 2xx/2xx at xxxLSA.
It runs 1x.xx in the 1/x mile.
I am xx years old.
Shhhhh... it's secret.
Jim
Originally Posted by 1993CaMaRoZ28ofIdAhO
Fixing whats wrong is were it gets spendy. I might just wait on this untill i can rebuild to the 383 and do it all right the first time. Im sure there are other ways to get into the 12s!
Or you might find that you only need a relatively inexpensive top-end job.
Jim
Originally Posted by DeltaT
What's with all this 2xx/2xx stuff? Are you running something so secret you think no one has tried it before?
How useful is this:
I'm running a 200x Camaro with a 3xx motor.
The cam is a 2xx/2xx at xxxLSA.
It runs 1x.xx in the 1/x mile.
I am xx years old.
Shhhhh... it's secret.
Jim
How useful is this:
I'm running a 200x Camaro with a 3xx motor.
The cam is a 2xx/2xx at xxxLSA.
It runs 1x.xx in the 1/x mile.
I am xx years old.
Shhhhh... it's secret.
Jim