Engine Build Question
Drifting
Joined: May 2010
Posts: 1,482
Likes: 2
From: Pearland, TX
C5-R blocks are usually made into a 427. If that's the case then it could be making 600hp NA. I don't know what to look for to identify the block as a C5-R though. It probably has a part number or something on it but I don't know where to look.
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
The block is capable of that N/A, but not with that cam... it would have to be substantially more aggressive along with fully ported and polished heads and a wealth of other top notch mods.
AMP Racing
Joined: Aug 2006
Posts: 10,756
Likes: 589
From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
2017 C5 of Year Finalist
St. Jude Donor '09-'10-'11-'12
Back in the day (b4 the LS2 came out) people would sleve and stroke the LS1 block and make it a 427 with 243 heads... 600 HP is bit of a reach though - like a long reach... Even if you measured at the crank, it's a long reach...
Thread Starter
Intermediate
Joined: Jan 2012
Posts: 32
Likes: 0
From: San Clemente California
C5-R
600 Horsepower
"New all alluminum LS6 upgraded motor. Aluminum Hydo-Formed Frame.
Street driver, never raced, 11:1 compression, runs great on 93 pump
gas. Pratt Miller Lemond computer programing... Not "flashed", each
perameter re-programed while on dyno. Competition cam shaft &
competition cam's double bee hive/honey comb valve springs, titanium
retainers, sodium filled stainless valves, milled, ported cathedral
heads with triple angle valve seals & max cnc work. Forged, full
floating Diamond brand Pistons w/ titanium GMHP "H" beam connecting
rods. Tremic bullet proof Viper/Zo6 six speed manual transmission. New
C6 Z06 differential carrier. 20k miles on new motor, trans and
differentials .
1 and 7/8" long tube stainless american racing headers to 3" straight
stainless & chrome Billy Boat Bullet system"
What do you guys think?
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
Still not sure what to think. Id say 450-480 if lucky. Thats just from what Ive seen in your set up spec wise. Of course I wish you upwards of 500. That would be great!
Why don't you go have it dynoed? Its pretty cheap to dyno if you dont due a dyno tune. Just tell a shop you want to see your numbers.
Why don't you go have it dynoed? Its pretty cheap to dyno if you dont due a dyno tune. Just tell a shop you want to see your numbers.
Last edited by NukeC5; Oct 9, 2012 at 11:24 AM.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
C5-R
600 Horsepower
"New all alluminum LS6 upgraded motor
600 Horsepower
"New all alluminum LS6 upgraded motor
C5-R block GM PART # 12480030
http://www.gmpartsdirect.com/results...umber=12480030
Price ~ $8,000 just for the block
and should use a dry sump oiling system
the LS6 block GM Part # 12561166
http://texas-speed.com/p-571-gm-57l-...ls6-block.aspx
$1100
Last edited by AU N EGL; Oct 9, 2012 at 07:41 AM.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Sounds like some dreaming is going on.
A C5Z06 with an aluminum frame?
Titanium connecting rods? Possible but not likely in a street build.
It'd also be retarded to modify one "parameter" at a time on a dyno. To take a simple example, you would not change the on temp of the fans and write that and then go back and change the off temp and write that. You do it in one write. And besides, you are writing the new parameter to the flash memory of the PCM so what else would you call it besides flashing or reflashing the PCM?
Are you looking at a whole car or just the engine?
A C5Z06 with an aluminum frame?
Titanium connecting rods? Possible but not likely in a street build.
It'd also be retarded to modify one "parameter" at a time on a dyno. To take a simple example, you would not change the on temp of the fans and write that and then go back and change the off temp and write that. You do it in one write. And besides, you are writing the new parameter to the flash memory of the PCM so what else would you call it besides flashing or reflashing the PCM?
Are you looking at a whole car or just the engine?
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Racer
Joined: Oct 2011
Posts: 371
Likes: 0
From: Tucker Georgia
Wow, I really, really doubt it is a C5R anything. Mostly because of the expense of a c5rblock compared to a more readily available block with the same displacement. Also, I really doubt someone would buy a C5R block, Mod the rearend to a C6 zo6, add a "viper/zo6 transmission", and then leave 243 castings on it.
Its at worst a plain old rebuilt and worked ls6, and at best maybe a 383 with ls6 heads. An ls6 stroker might make 600hp on an engine dyno but that would probably be a ****** curve with a ridiculous cam.
The ad just sounds like it was written by someone who had no idea what he was talking about.
Its at worst a plain old rebuilt and worked ls6, and at best maybe a 383 with ls6 heads. An ls6 stroker might make 600hp on an engine dyno but that would probably be a ****** curve with a ridiculous cam.
The ad just sounds like it was written by someone who had no idea what he was talking about.