Just thinking out loud,but.....
Thread Starter
Le Mans Master
Joined: Jul 2004
Posts: 7,727
Likes: 7
From: Twilight zone
St. Jude Donor '05-'06
Just thinking out loud,but.....
Well,I was thinking about the hp rating difference between the ls6 and the ls1.
Ls1=350
ls6=405
That's 55 hp difference with the main difference being the heads and cam
Now,as discovered by myself and confirmed by a few others here,just swapping stock 243's onto an ls1 will only net @ 15 hp,give or take
Ok,.........that leaves the cam ...right?
Well,the z06 cam is really not ALL that much bigger,certainly doesn't seemlike it would be responsible for another 40 hp!
And,when talking about swapping other much larger cams,in comparison( 224/228 range),many say to only expect 30 or so hp.....unless you get into real large"gorilla cams"
So,is it just that this setup is optimally matched for the best results?
Because I can only imagine an ls6 cam swap cam alone being good for only what?..........15-20 hp?
Add those two up and it comes to35,that leaves 20 hp!!
I can only summize that it is an optimal match to achieve those numbers...So, here is another question.....
ls1 block @350 hp adding ls6 cam only =???hp?
ls1 block @ 350 hp adding 243's only =???hp?
Adding both = 405
What's your thoughts?
Ls1=350
ls6=405
That's 55 hp difference with the main difference being the heads and cam
Now,as discovered by myself and confirmed by a few others here,just swapping stock 243's onto an ls1 will only net @ 15 hp,give or take
Ok,.........that leaves the cam ...right?
Well,the z06 cam is really not ALL that much bigger,certainly doesn't seemlike it would be responsible for another 40 hp!
And,when talking about swapping other much larger cams,in comparison( 224/228 range),many say to only expect 30 or so hp.....unless you get into real large"gorilla cams"
So,is it just that this setup is optimally matched for the best results?
Because I can only imagine an ls6 cam swap cam alone being good for only what?..........15-20 hp?
Add those two up and it comes to35,that leaves 20 hp!!
I can only summize that it is an optimal match to achieve those numbers...So, here is another question.....
ls1 block @350 hp adding ls6 cam only =???hp?
ls1 block @ 350 hp adding 243's only =???hp?
Adding both = 405
What's your thoughts?
Last edited by flynbya2; Aug 21, 2007 at 01:16 PM.
Burning Brakes
Joined: Mar 2006
Posts: 1,195
Likes: 25
From: Tacoma WA
Yeah - I've always understood that the effects are more than just additive...
So if 243s = X Gain and the LS6 Cam = Y Gain the total gain from doing both would be greater than just X+Y. Because they compliment each other...
Has anyone tossed LS6 Heads and an LS6 cam on an 01+ LS1 and Dyno'd it? I would imagine they'd see somewhere near 350whp which is about right...
-Dan
So if 243s = X Gain and the LS6 Cam = Y Gain the total gain from doing both would be greater than just X+Y. Because they compliment each other...
Has anyone tossed LS6 Heads and an LS6 cam on an 01+ LS1 and Dyno'd it? I would imagine they'd see somewhere near 350whp which is about right...
-Dan
Melting Slicks
Joined: Jul 2006
Posts: 3,356
Likes: 1
From: Chesapeake Va
Yeah - I've always understood that the effects are more than just additive...
So if 243s = X Gain and the LS6 Cam = Y Gain the total gain from doing both would be greater than just X+Y. Because they compliment each other...
Has anyone tossed LS6 Heads and an LS6 cam on an 01+ LS1 and Dyno'd it? I would imagine they'd see somewhere near 350whp which is about right...
-Dan
So if 243s = X Gain and the LS6 Cam = Y Gain the total gain from doing both would be greater than just X+Y. Because they compliment each other...
Has anyone tossed LS6 Heads and an LS6 cam on an 01+ LS1 and Dyno'd it? I would imagine they'd see somewhere near 350whp which is about right...
-Dan
01 Camaro, LS6 heads and cam. Unported...tuned
Melting Slicks
Joined: Sep 2004
Posts: 3,178
Likes: 13
From: N. County/San Diego
Well,I was thinking about the hp rating difference between the ls6 and the ls1.
Ls1=350
ls6=405
That's 55 hp difference with the main difference being the heads and cam
Now,as discovered by myself and confirmed by a few others here,just swapping stock 243's onto an ls1 will only net @ 15 hp,give or take
Ok,.........that leaves the cam ...right?
Well,the z06 cam is really not ALL that much bigger,certainly doesn't seemlike it would be responsible for another 40 hp!
And,when talking about swapping other much larger cams,in comparison( 224/228 range),many say to only expect 30 or so hp.....unless you get into real large"gorilla cams"
So,is it just that this setup is optimally matched for the best results?
Because I can only imagine an ls6 cam swap cam alone being good for only what?..........15-20 hp?
Add those two up and it comes to35,that leaves 20 hp!!
I can only summize that it is an optimal match to achieve those numbers...So, here is another question.....
ls1 block @350 hp adding ls6 cam only =???hp?
ls1 block @ 350 hp adding 243's only =???hp?
Adding both = 405
What's your thoughts?
Ls1=350
ls6=405
That's 55 hp difference with the main difference being the heads and cam
Now,as discovered by myself and confirmed by a few others here,just swapping stock 243's onto an ls1 will only net @ 15 hp,give or take
Ok,.........that leaves the cam ...right?
Well,the z06 cam is really not ALL that much bigger,certainly doesn't seemlike it would be responsible for another 40 hp!
And,when talking about swapping other much larger cams,in comparison( 224/228 range),many say to only expect 30 or so hp.....unless you get into real large"gorilla cams"
So,is it just that this setup is optimally matched for the best results?
Because I can only imagine an ls6 cam swap cam alone being good for only what?..........15-20 hp?
Add those two up and it comes to35,that leaves 20 hp!!
I can only summize that it is an optimal match to achieve those numbers...So, here is another question.....
ls1 block @350 hp adding ls6 cam only =???hp?
ls1 block @ 350 hp adding 243's only =???hp?
Adding both = 405
What's your thoughts?
The average stock LS6 rwhp is usually around 336 which an LS1 will achieve with intake and headers!
I think and LS6 with intake and headers usually average in the 360`s give or take.
Of course a tune can always improve those numbers, so all in all the numbers at the rear wheels seem to add up correctly being that the LS6 heads run a higher comperssion.
Also, don`t forget that our auto trans will always dyno lower than the manual cars........ go for the after market cam with at least some ls6 heads and you`ll be happy!
Thread Starter
Le Mans Master
Joined: Jul 2004
Posts: 7,727
Likes: 7
From: Twilight zone
St. Jude Donor '05-'06
Joe, one point to remember, compare rwhp and not the GM hp rated at the crank!
The average stock LS6 rwhp is usually around 336 which an LS1 will achieve with intake and headers!
I think and LS6 with intake and headers usually average in the 360`s give or take.
Of course a tune can always improve those numbers, so all in all the numbers at the rear wheels seem to add up correctly being that the LS6 heads run a higher comperssion.
Also, don`t forget that our auto trans will always dyno lower than the manual cars........ go for the after market cam with at least some ls6 heads and you`ll be happy!
The average stock LS6 rwhp is usually around 336 which an LS1 will achieve with intake and headers!
I think and LS6 with intake and headers usually average in the 360`s give or take.
Of course a tune can always improve those numbers, so all in all the numbers at the rear wheels seem to add up correctly being that the LS6 heads run a higher comperssion.
Also, don`t forget that our auto trans will always dyno lower than the manual cars........ go for the after market cam with at least some ls6 heads and you`ll be happy!
You know I already have the heads on right?
The reason I was going with crank #'s was to omit the powertrain loss in the equation,.Just trying to figure that 55 hp out....because I only saw maybe 15or 20 max with the heads
BTW Rick,
I think I want that UD pulley!!!
Thread Starter
Le Mans Master
Joined: Jul 2004
Posts: 7,727
Likes: 7
From: Twilight zone
St. Jude Donor '05-'06
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski