What heads are you turbo'd guys running?
07-08-2006, 10:42 PM
#21
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Originally Posted by LTLHOMER
I run 4.10's in my turbo ls1. All depends on what you're spinning the motor to. 8k in my case.
As for heads, ported stock 241's for me. Seem to work okay.
As for heads, ported stock 241's for me. Seem to work okay.
07-09-2006, 12:31 AM
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I got stock 6.0's for 250 shipped out of the for sale forum. Go to the truck forum for sale ads as well to try and find some.
And if you are trying to keep a lower budget the 370 inch LS2's and Iron Blocks are putting down some sick power. Check this one out. Though you probably seen it!
https://ls1tech.com/forums/forced-induction/534997-new-best-couple-vids.html
And if you are trying to keep a lower budget the 370 inch LS2's and Iron Blocks are putting down some sick power. Check this one out. Though you probably seen it!
https://ls1tech.com/forums/forced-induction/534997-new-best-couple-vids.html
07-09-2006, 10:43 AM
#26
Mike Brown is running 8.50's@160mph+ with a stock LS2 block (stock main caps and not resleeved), stock LS1/LS2 crank, forged rods/pistons, AFR 225 heads (I believe) and a stock LS6 intake, with ported stock TB. This is in a 3600lb+ Firebird.... It is making some big power for sure.
I would mimick his combo.... it has made plenty of passes and hasn't shown any signs of wanting to go Kaboom. He is replacing it shortly with a stronger buildup and will share the details once it is torn down with what items have excessive wear on them. I'm curious to see how the internals look as well as others I'm sure.
I would mimick his combo.... it has made plenty of passes and hasn't shown any signs of wanting to go Kaboom. He is replacing it shortly with a stronger buildup and will share the details once it is torn down with what items have excessive wear on them. I'm curious to see how the internals look as well as others I'm sure.
07-09-2006, 11:01 AM
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i'll be using truck 6.0 317 casting numbers which flow the same as a 243 casting number ls6 heads but they have 71 cc so they lower the comp.and u can find then between 300-400 shipped,or patriot sell them on a stage 2 or 3 level for like 1100-1300 good deal as well for some more cfm's
07-09-2006, 11:04 AM
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Ported heads arent worth all the extra cash, IMHO unless you have it to burn or are running tons of boost. The thicker deck is why they help. I picked up my stock 317s with 5 miles on them complete with rockers, etc from the FS section for cheap. It saved a ton of money over a ported set.
07-09-2006, 11:48 AM
#30
If you are going to keep stock heads on your set-up you AT LEAST need to change out the valve springs.... In My opinion nothing but double springs.... i like the 2nd spring... there to save your *** (Motor) if ya ever need it. Seen to many motor's go 
from single springs.....
from single springs.....
07-09-2006, 12:39 PM
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Originally Posted by MiaSSmaro98
i'll be using truck 6.0 317 casting numbers which flow the same as a 243 casting number ls6 heads but they have 71 cc so they lower the comp.and u can find then between 300-400 shipped,or patriot sell them on a stage 2 or 3 level for like 1100-1300 good deal as well for some more cfm's
What is the difference between the 317 and 373 6.0L heads? Just the material, or is there CR difference, too? I believe they're both 71 cc.
07-09-2006, 12:39 PM
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Originally Posted by NA$TY-TA
If you are going to keep stock heads on your set-up you AT LEAST need to change out the valve springs.... In My opinion nothing but double springs.... i like the 2nd spring... there to save your *** (Motor) if ya ever need it. Seen to many motor's go from single springs.....
from single springs.....
07-09-2006, 01:28 PM
#34
What is the difference between the 317 and 373 6.0L heads? Just the material, or is there CR difference, too? I believe they're both 71 cc.
I know of three
317- lq4 alum.
873- lq4 cast iron
035- lq9 alum.
all 71.06 cc
07-09-2006, 04:37 PM
#36
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Originally Posted by ls1king000
Don't you mean 873? which are cast iron material?
I know of three
317- lq4 alum.
873- lq4 cast iron
035- lq9 alum.
all 71.06 cc
I know of three
317- lq4 alum.
873- lq4 cast iron
035- lq9 alum.
all 71.06 cc
Soooooo, then the only difference is iron/aluminum?
07-09-2006, 04:39 PM
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Originally Posted by SVT THIS
How do you all feel about forging a stock cubed LS1 with low compression and running some boost on that? Or possibly stroking the 346 to a 383 with forged internals setup for boost?
Would you be satisfied with ~700 pump gas numbers?
