LS7 Crate Longblock Pricing
Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
Originally Posted by boblackhardtop
Price is great but w/ all the other modifications to make it works, it add up very quickly.
Although a cam and spring swap alone would wake that motor up considerably. Even that, however, gets those numbers approaching 15K with misc. BS and freight costs. Still a decent value, certainly, but dropping that kind of coin has got to get you thinking about potentially less expensive alternatives/options.
The fact we even have this option is still amazing, and this engine speaks volumes of the performance era that is today....forget the 60's, right now is the hey day of 80 year old technology (the IC engine!).
Kudo's to GM for producing it
(They did something right lately!)
Last edited by Tony Mamo; Jun 21, 2005 at 01:06 PM.
Racer
Joined: Feb 2005
Posts: 484
Likes: 0
Originally Posted by Randy@DRM
Ti rods with cast pistons. Not good at all.
Randy
Randy
Forgive my ignorance, but why is this combo bad?
Thanks,
S.
P.S. I should have prefaced this question by stating I know diddly squat about this sort of thing.
Racer
Joined: Jul 2001
Posts: 386
Likes: 0
From: Round Rock, Texas, USA
Originally Posted by Randy@DRM
Ti rods with cast pistons. Not good at all.
Randy
Randy
Le Mans Master
Joined: Feb 1999
Posts: 7,121
Likes: 0
From: Vilano Beach FL
Howdy Folks!
From what I've read and know of the LS7, nearly all the component selection was geared towards weight reduction of the reciprocating assembly - so it could be a high-revving motor.
Then you have to factor in emissions and noise - my understanding of cast vs. forged pistons is that cast expands more/quicker and provides a cleaner burn and less slap/rattle - especially while the motor is relatively cold.
Forged are stronger and will resist detonation quite a bit more (especially for FI applications). Honestly I think everyone is all worked up about using cast pistons, but remember this car was designed to be a low emissions vehicle, and GM doesn't design cars with modifications in mind. They weren't calculating in someone adding forced induction!
I figure that someone dropping $70K+ on a car, and adding a $10K-20K+ FI system (and effectively renders the motor and drivetrain warranty, questionable at best) isn't going to have a big problem dropping in a set of improved pistons
Just my $0.02
From what I've read and know of the LS7, nearly all the component selection was geared towards weight reduction of the reciprocating assembly - so it could be a high-revving motor.
Then you have to factor in emissions and noise - my understanding of cast vs. forged pistons is that cast expands more/quicker and provides a cleaner burn and less slap/rattle - especially while the motor is relatively cold.
Forged are stronger and will resist detonation quite a bit more (especially for FI applications). Honestly I think everyone is all worked up about using cast pistons, but remember this car was designed to be a low emissions vehicle, and GM doesn't design cars with modifications in mind. They weren't calculating in someone adding forced induction!
I figure that someone dropping $70K+ on a car, and adding a $10K-20K+ FI system (and effectively renders the motor and drivetrain warranty, questionable at best) isn't going to have a big problem dropping in a set of improved pistons
Just my $0.02
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
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
Originally Posted by Randy@DRM
Ti rods with cast pistons. Not good at all.
Randy
Randy
Good point, but I think in a strong N/A application (or mild forced induction) there wouldn't be many issues. Think about how much abuse stock 346 pistons put up with in blower and nitrous applications you see everywhere. Obviously the right tune becomes paramount.
I also question the long term aspects of the Ti valves regarding the seats getting pounded (Ti is somewhat "soft"), and also the guide wear situation with the coated stems the Ti valves MUST have. I assume GM has done all their homework but I must admit I am curious to see how things pan out over the long haul.
Tony M.
Last edited by Tony Mamo; Jun 21, 2005 at 02:32 PM.
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,928
Likes: 1
Cruise-In V Veteran
St. Jude Donor '09
That's a Great price!!! Does this include the Dry Sump setup ??
From what I have seen, and been told the answer to this question is yes. We are waiting patently to get one in our hands to see exactly how everything will fit in a C5 or an F body.
TXNC5- Hey!! Do you think the Ti rods are suspect strengthwise?? What about the new LS7 style truck head?? Viable option for the smaller bore enthusiast??
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,928
Likes: 1
Cruise-In V Veteran
St. Jude Donor '09
That's a Great price!!! Does this include the Dry Sump setup ??
From what I have seen, and been told the answer to this question is yes. We are waiting patently to get one in our hands to see exactly how everything will fit in a C5 or an F body.
TXNC5- Hey!! Do you think the Ti rods are suspect strengthwise?? What about the new LS7 style truck head?? Viable option for the smaller bore enthusiast??
How do you think the Grand Am cam would do in the LS7?? Sorry for all the Qs.
Racer
Joined: Jul 2001
Posts: 386
Likes: 0
From: Round Rock, Texas, USA
Originally Posted by Bink
- Joel
KJ@SDPC
TXNC5- Hey!! Do you think the Ti rods are suspect strengthwise?? What about the new LS7 style truck head?? Viable option for the smaller bore enthusiast?? How do you think the Grand Am cam would do in the LS7?? Sorry for all the Qs.
KJ@SDPC
TXNC5- Hey!! Do you think the Ti rods are suspect strengthwise?? What about the new LS7 style truck head?? Viable option for the smaller bore enthusiast??
How do you think the Grand Am cam would do in the LS7?? Sorry for all the Qs.The truck heads (L76) will be very interesting. They are not machined like the LS7's, so we will get to see what some of the porters can do. As I mentioned on another site, you will be able to use standard rocker arms on these heads. However, I am not for sure about the intake manifold as the intake port is completely different, and I believe the bore will be smaller than the LS7.
Just wait till you see the LS7's! It is hard to believe something so nice is coming straight out of the factory. They are f'ing sweet. They will require different rocker arms, and you will have to use the LS7 intake because the bolt pattern is different.
I am sure the Grand Am would make some nice gains. You would have to stick with the 1.8 ratio since the stock cam will have ~.591 lift at that ratio (and the Grand Am is only .570 with 1.7).
I will have some pictures up on my site of both heads probably by the end of the week.
Racer
Joined: Jul 2001
Posts: 386
Likes: 0
From: Round Rock, Texas, USA
BTW, you will still need some extra components to complete the dry sump, and as of now I don't believe it will be complete "plug-n-play" retrofit. Although, I am sure it won't take long for a kit to be developed to make the retrofit much easier.
Former Vendor
Joined: Feb 2002
Posts: 7,812
Likes: 3
From: DFW, TX www.vettestripes.com
St. Jude Donor '03-'04-'05-'06-'07-'08
I agree with others. After adding thing to make it worked in C5's, I think we'll be looking at $15K or so.
Originally, I wanted this engine so bad but I also want to have a super chager/turbo as well. Look like brand new LS6 plus Magnuson/A&A turbo will be my future mod in 3-4 year or my current engine broken whichever comes first
-Mike
Originally, I wanted this engine so bad but I also want to have a super chager/turbo as well. Look like brand new LS6 plus Magnuson/A&A turbo will be my future mod in 3-4 year
or my current engine broken whichever comes first -Mike
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,928
Likes: 1
Cruise-In V Veteran
St. Jude Donor '09
Originally Posted by TXNC5
BTW, you will still need some extra components to complete the dry sump, and as of now I don't believe it will be complete "plug-n-play" retrofit. Although, I am sure it won't take long for a kit to be developed to make the retrofit much easier.
A lot of good info on the LS7 and heads here ->
http://www.gearchatter.com/viewforum...e031be677baa02
This looks like a sweet cam for an LS7 and fun to tune too!
:SS250 - 250/258 @ .050 .580/.580 lift on a 108 $354.25
SS= "Super Stick!" it's kind of like kryptonite-----the super Stick is faster than a speeding bullet! We recomend 1.8 rockers for a .614 total lift!
Racer
Joined: Jul 2001
Posts: 386
Likes: 0
From: Round Rock, Texas, USA
Originally Posted by Bink
SS250 - 250/258 @ .050 .580/.580 lift on a 108 $354.25
SS= "Super Stick!" it's kind of like kryptonite-----the super Stick is faster than a speeding bullet! We recomend 1.8 rockers for a .614 total lift!
SS= "Super Stick!" it's kind of like kryptonite-----the super Stick is faster than a speeding bullet! We recomend 1.8 rockers for a .614 total lift!
But it will be soon.
