R07 CGI block
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Teching In
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From: California
R07 CGI block Are they attainable by the average joe, has anyone ever seen one of these on the street, know where to find one, price range, etc. Any information in the right direction is appreciated
Thread Starter
Teching In
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From: California
It is an Compacted Graphite Iron block said to be 70% lighter than grey cast iron 200% the fatigue limit as well as 40% more rigid than cast iron I too had not heard of it until 1 day in my Diesel class and it sounded like a good prospect for a build on a gas engine then I did a little research and found Nascar was way ahead of me and they've been using it for quite some time GM I believe caught on after Toyota introduced it and made their own version in 2007 called the R07 but I have not been able to find any info on buying an actual block only intakes, cyl. heads, and distributors
Staging Lane
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Correct. I checked with them and it will be available after they get their cast iron tooling/production up and running. The LS Next CGI block will have strength but no weight advantage...
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Thread Starter
Teching In
Joined: Nov 2012
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From: California
I'm Kind of bitter, I mainly wanted the block in the first place for it's combination of perks now it seems to be just another block however it still isn't that bad for the price range just when you think you have an edge on everyone else... I thought this would surely turn my car into the mach 5 lol
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Verdad Gallardo I think unless youre making north of 800hp the aluminum blocks are fine (with the exception of serious FI or nitrous cars), and even then the iron varients are very stout. and if that isnt enough theres already enough blocks on the market
Thread Starter
Teching In
Joined: Nov 2012
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From: California
Guess I'll stop being stubborn, I want to make a street/strip car you guys have more experience with this I'm all ears, I want something scary that shakes when you start it. where do I start?
The weight advantage usually comes in after they chuck the CGI block up in the CNC center and go over every square inch with a carbide bit. CGI lets them take more meat away and still maintain structural integrity.
Big cubes and big camshaft will get you going in the direction you want to go. It all comes down to budget and goals. Lots of $400 truck blocks have been in the 9s and even a few faster than that.
Thread Starter
Teching In
Joined: Nov 2012
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From: California
Heres an economical option for big cubes, big power, and probably the best $/reward payoff.
Get an aluminum 6.0 block, and have that sleeved to a 4.125 bore. The sleeving is normally about $2000-2500 depending, plus the cost of the block etc.
Forged rotating assembly (callies is nice) 4" stroke. This gives you a 427
LS7 top end
Fast intake
Custom cam
Obviously full supporting mods
Hello 600+rwhp
Get an aluminum 6.0 block, and have that sleeved to a 4.125 bore. The sleeving is normally about $2000-2500 depending, plus the cost of the block etc.
Forged rotating assembly (callies is nice) 4" stroke. This gives you a 427
LS7 top end
Fast intake
Custom cam
Obviously full supporting mods
Hello 600+rwhp
Thread Starter
Teching In
Joined: Nov 2012
Posts: 28
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From: California
Heres an economical option for big cubes, big power, and probably the best $/reward payoff.
Get an aluminum 6.0 block, and have that sleeved to a 4.125 bore. The sleeving is normally about $2000-2500 depending, plus the cost of the block etc.
Forged rotating assembly (callies is nice) 4" stroke. This gives you a 427
LS7 top end
Fast intake
Custom cam
Obviously full supporting mods
Hello 600+rwhp
Get an aluminum 6.0 block, and have that sleeved to a 4.125 bore. The sleeving is normally about $2000-2500 depending, plus the cost of the block etc.
Forged rotating assembly (callies is nice) 4" stroke. This gives you a 427
LS7 top end
Fast intake
Custom cam
Obviously full supporting mods
Hello 600+rwhp
Thread Starter
Teching In
Joined: Nov 2012
Posts: 28
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From: California
So would it be best to just go with an 6.0 aluminum block derived from the LS series if going with LS7 heads? And if so what block would best fit for the assembly of the application Tainted recommended earlier?
So would it be best to just go with an 6.0 aluminum block derived from the LS series if going with LS7 heads? And if so what block would best fit for the assembly of the application Tainted recommended earlier?