LS7- 7.0L or 6.4?
TECH Addict
Joined: Jul 2002
Posts: 2,261
Likes: 0
Originally Posted by J-Rod
The information from credible sources on various sites (who have been right before, and have inside contacts) point to 7.0L 2V 500HP motor...
6600 rpm clutch dump of death Administrator
Joined: Dec 2001
Posts: 4,983
Likes: 13
From: Texas
Don't get hung up on 3V heads, uneeded weight and complexity.
Look up Chris @ AP Engineering's post on the heads. My understanding is he flowed a set. Cross between a C5R head/SB2.2/and current LS head.
https://ls1tech.com/forums/generation-iii-internal-engine/176202-what-intake-pics-inside.html
Flow was in the 370 range...
If they are 2V, they should bolt up to our current motors... Keep that in mind, (its a good thing).
Pics...
Same Throttle body as the LS2...same bolt pattern
Look up Chris @ AP Engineering's post on the heads. My understanding is he flowed a set. Cross between a C5R head/SB2.2/and current LS head.
https://ls1tech.com/forums/generation-iii-internal-engine/176202-what-intake-pics-inside.html
Flow was in the 370 range...
If they are 2V, they should bolt up to our current motors... Keep that in mind, (its a good thing).
Pics...
Same Throttle body as the LS2...same bolt pattern
Originally Posted by Phoenix57
ford is the one who overcomplicates things, look at the new mustang engine, 3 valves and a variable cam, just to reach 300hp.
TECH Fanatic
Joined: Mar 2003
Posts: 1,384
Likes: 0
From: Jersey boy
Originally Posted by Lostpatrolman
What is wrong with trying to build a better platform??
as opposed to a simple big cube motor that can make that kind of power without breaking a sweat.
and as for the 500hp 427 being such a dissapointment: so what if they already have a motor making more power than that? im sure the power under the curve will be much more favorable, and im sure there will be plenty of cam packages ready to go once the car rolls off the production line.
more cubes is 'most always better. and if its an LSx motor being compared to another LSx motor then the bigger cubed motor should have more potential power output regardless of its factory ratings.
would you prefer a finely tuned 300hp 346ci motor or a choked the hell up 300hp(for arguments sake) 427ci motor which you know could easily polish up to smoke the crap out of the smaller motor?
Last edited by BigPlanTransAm; Sep 21, 2004 at 09:49 PM.
That intake looks a lot like the one seen in pictures of the CTS V world challenge race car. Also checked out the SCCA competition specs for that car (http://world-challenge.com/competito...CTS-V-REV1.pdf), and saw that the intake ports dimensions are shorter and wider than the Z06 specs. Hmmmm, looks like that engine may be the 2 valve LS7 heads/intake on a destroked bottom end, stroke is 3.27", bore is 4.15" . They also get to use a 2.2/1.6 valve combo.
Will find out for sure in a couple of months I guess when the Z06 debuts at the Detroit show.
Will find out for sure in a couple of months I guess when the Z06 debuts at the Detroit show.
6600 rpm clutch dump of death Administrator
Joined: Dec 2001
Posts: 4,983
Likes: 13
From: Texas
They are using LS7 stuff...
B. CYLINDER BLOCK: Part Number: 12571246 (GM)
B.1. Cylinder Block Material: Aluminum B.2. Cylinder Bore (Max): 105.3mm (4.15”)
C. CYLINDER HEAD: Part Number: 12578452 (GM)
C.1. Cylinder Head Material: Aluminum
D. VALVE SYSTEM:
D.1. Number of Valves per Cylinder: D.1.a. Intake: 1 D.1.b. Exhaust: 1
D.2. Valve Head Diameter (Max): D.2.a. Intake: 56.0mm (2.20”) D.2.b. Exhaust: 41.0mm (1.61”)
E. INTAKE PORT DIMENSIONS:
E.1. At Inlet Manifold Face (Max): E.1.a. Height: 62.2mm (2.45”) E.1.b. Width: 36.0mm (1.42”)
E.2. Intake Port Work Allowed (Yes or No): No F.2.a. Depth from Face:
F. EXHAUST PORT DIMENSIONS:
F.1. At Exhaust Manifold Face (Max): F.1.a. Height: 35.1mm (1.38”) F.1.b. Width: 42.5mm (1.67”)
F.2. Exhaust Port Work Allowed (Yes or No): No F.2.a. Depth from Face:
L. INTAKE MANIFOLD: Part Number: 12569011 (GM)
L.1. Port at Cylinder Head Face (Max): L.1.a. Height: 59.2mm (2.33”) L.1.b. Width: 32.0mm (1.26”)
L.2. Intake Manifold Volume (Max): 5.9 Liters
L.3. Throttle Body Bore Diameter & Part #: 90.0mm (3.54”) ETC / 12570790 (GM)
L.4. # of Throttle Bodies: 1 L.5. # of Butterflies per Throttle Body: 1
L.6. Intake Manifold Material: plastic L.7. Manifold Pieces: 1
L.7. Intermediate Port Matching Allowed (Yes / No): N/A L.8. Depth from Intermediate Face: N/A
L.9. Intake Runner Port Matching Allowed (Yes / No): Yes L.10. Depth from Mounting Face: 1”
B. CYLINDER BLOCK: Part Number: 12571246 (GM)
B.1. Cylinder Block Material: Aluminum B.2. Cylinder Bore (Max): 105.3mm (4.15”)
C. CYLINDER HEAD: Part Number: 12578452 (GM)
C.1. Cylinder Head Material: Aluminum
D. VALVE SYSTEM:
D.1. Number of Valves per Cylinder: D.1.a. Intake: 1 D.1.b. Exhaust: 1
D.2. Valve Head Diameter (Max): D.2.a. Intake: 56.0mm (2.20”) D.2.b. Exhaust: 41.0mm (1.61”)
E. INTAKE PORT DIMENSIONS:
E.1. At Inlet Manifold Face (Max): E.1.a. Height: 62.2mm (2.45”) E.1.b. Width: 36.0mm (1.42”)
E.2. Intake Port Work Allowed (Yes or No): No F.2.a. Depth from Face:
F. EXHAUST PORT DIMENSIONS:
F.1. At Exhaust Manifold Face (Max): F.1.a. Height: 35.1mm (1.38”) F.1.b. Width: 42.5mm (1.67”)
F.2. Exhaust Port Work Allowed (Yes or No): No F.2.a. Depth from Face:
L. INTAKE MANIFOLD: Part Number: 12569011 (GM)
L.1. Port at Cylinder Head Face (Max): L.1.a. Height: 59.2mm (2.33”) L.1.b. Width: 32.0mm (1.26”)
L.2. Intake Manifold Volume (Max): 5.9 Liters
L.3. Throttle Body Bore Diameter & Part #: 90.0mm (3.54”) ETC / 12570790 (GM)
L.4. # of Throttle Bodies: 1 L.5. # of Butterflies per Throttle Body: 1
L.6. Intake Manifold Material: plastic L.7. Manifold Pieces: 1
L.7. Intermediate Port Matching Allowed (Yes / No): N/A L.8. Depth from Intermediate Face: N/A
L.9. Intake Runner Port Matching Allowed (Yes / No): Yes L.10. Depth from Mounting Face: 1”
Teching In
Joined: Sep 2004
Posts: 5
Likes: 0
I think a 7.0 2v engine that draws on the C5R experience makes the most sense. It's consistent with what Lutz has been saying about simplicity in engine designs. I don't have any seekrit GM inside info, but I do have some inkling as to what Mopar has coming, and I am quite certain that the Viper will be over 600 hp within two model years. (I'm also quite certain that Team Corvette knows far more than I do on that front.) A 7.0 Z06 rated at a conservative 500 hp leaves plenty of room to tune upward when the revised Viper powertrain hits.
The horsepower wars are in full swing, folks!
The horsepower wars are in full swing, folks!
ls7 Do you think it is a whole new block and not the c5r block? Will the ls7 heads, intake,block, be much more affordable than the c5r stuff? If so my next motor will definitely have to be a custom built ls7!!!!!!!!!!!!!! What will the stroke be if it has a 4.15 bore and its 427 ci? Will there be an affordable ls7 crank? Do you think the crank will be forged if not how much rwhp will it handle do you think on a custom motor using the stock crank? Speed shops will be getting 700 rwhp in NA form with these new blocks, intakes, heads!!!!
Imagine a 700 rwhp ss camaro with custom ls7 built for under 15,000!!!! This is my dream come true!!
Imagine a 700 rwhp ss camaro with custom ls7 built for under 15,000!!!! This is my dream come true!!
Launching!
Joined: Mar 2004
Posts: 222
Likes: 0
From: Ontario Canada
Originally Posted by J-Rod
They are using LS7 stuff...
B. CYLINDER BLOCK: Part Number: 12571246 (GM)
B.1. Cylinder Block Material: Aluminum B.2. Cylinder Bore (Max): 105.3mm (4.15”)
C. CYLINDER HEAD: Part Number: 12578452 (GM)
C.1. Cylinder Head Material: Aluminum
D. VALVE SYSTEM:
D.1. Number of Valves per Cylinder: D.1.a. Intake: 1 D.1.b. Exhaust: 1
D.2. Valve Head Diameter (Max): D.2.a. Intake: 56.0mm (2.20”) D.2.b. Exhaust: 41.0mm (1.61”)
E. INTAKE PORT DIMENSIONS:
E.1. At Inlet Manifold Face (Max): E.1.a. Height: 62.2mm (2.45”) E.1.b. Width: 36.0mm (1.42”)
E.2. Intake Port Work Allowed (Yes or No): No F.2.a. Depth from Face:
F. EXHAUST PORT DIMENSIONS:
F.1. At Exhaust Manifold Face (Max): F.1.a. Height: 35.1mm (1.38”) F.1.b. Width: 42.5mm (1.67”)
F.2. Exhaust Port Work Allowed (Yes or No): No F.2.a. Depth from Face:
L. INTAKE MANIFOLD: Part Number: 12569011 (GM)
L.1. Port at Cylinder Head Face (Max): L.1.a. Height: 59.2mm (2.33”) L.1.b. Width: 32.0mm (1.26”)
L.2. Intake Manifold Volume (Max): 5.9 Liters
L.3. Throttle Body Bore Diameter & Part #: 90.0mm (3.54”) ETC / 12570790 (GM)
L.4. # of Throttle Bodies: 1 L.5. # of Butterflies per Throttle Body: 1
L.6. Intake Manifold Material: plastic L.7. Manifold Pieces: 1
L.7. Intermediate Port Matching Allowed (Yes / No): N/A L.8. Depth from Intermediate Face: N/A
L.9. Intake Runner Port Matching Allowed (Yes / No): Yes L.10. Depth from Mounting Face: 1”
B. CYLINDER BLOCK: Part Number: 12571246 (GM)
B.1. Cylinder Block Material: Aluminum B.2. Cylinder Bore (Max): 105.3mm (4.15”)
C. CYLINDER HEAD: Part Number: 12578452 (GM)
C.1. Cylinder Head Material: Aluminum
D. VALVE SYSTEM:
D.1. Number of Valves per Cylinder: D.1.a. Intake: 1 D.1.b. Exhaust: 1
D.2. Valve Head Diameter (Max): D.2.a. Intake: 56.0mm (2.20”) D.2.b. Exhaust: 41.0mm (1.61”)
E. INTAKE PORT DIMENSIONS:
E.1. At Inlet Manifold Face (Max): E.1.a. Height: 62.2mm (2.45”) E.1.b. Width: 36.0mm (1.42”)
E.2. Intake Port Work Allowed (Yes or No): No F.2.a. Depth from Face:
F. EXHAUST PORT DIMENSIONS:
F.1. At Exhaust Manifold Face (Max): F.1.a. Height: 35.1mm (1.38”) F.1.b. Width: 42.5mm (1.67”)
F.2. Exhaust Port Work Allowed (Yes or No): No F.2.a. Depth from Face:
L. INTAKE MANIFOLD: Part Number: 12569011 (GM)
L.1. Port at Cylinder Head Face (Max): L.1.a. Height: 59.2mm (2.33”) L.1.b. Width: 32.0mm (1.26”)
L.2. Intake Manifold Volume (Max): 5.9 Liters
L.3. Throttle Body Bore Diameter & Part #: 90.0mm (3.54”) ETC / 12570790 (GM)
L.4. # of Throttle Bodies: 1 L.5. # of Butterflies per Throttle Body: 1
L.6. Intake Manifold Material: plastic L.7. Manifold Pieces: 1
L.7. Intermediate Port Matching Allowed (Yes / No): N/A L.8. Depth from Intermediate Face: N/A
L.9. Intake Runner Port Matching Allowed (Yes / No): Yes L.10. Depth from Mounting Face: 1”
These are all new part numbers? I see the stroke is 3.27" 352.7 CI. 4.150 bore.
Are these parts available to the general public anytime soon?
Does this meen I should put off ordering my Darton block?
On a side note I hae a feeling that the 243 head casting will come down in price soon now that they are standard on all LS2 applications.
<<C. CYLINDER HEAD: Part Number: 12578452 (GM)>>
This part # and the others are the LS7?
The Z06 is a 6.4L and makes 500/500 hp/tq. They did a really trick "thing" to the exhaust, just behind the two mufflers... Check it out when you start seeing some spy photos. (BTW, I hate the wheels)
If ya doubt it, bookmark this thread and come back to it once the Z06 is officially revealed at the Detroit Autoshow in January.
If ya doubt it, bookmark this thread and come back to it once the Z06 is officially revealed at the Detroit Autoshow in January.