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C5R is the king, if you can afford it get it. If not I would not use the sleeves, have heard a lot of hassles on the forum by guys that went that route. WP block due out(or may be out now)is not quite as nice as the C5R, but costs much less.
C5R is the king, if you can afford it get it. If not I would not use the sleeves, have heard a lot of hassles on the forum by guys that went that route. WP block due out(or may be out now)is not quite as nice as the C5R, but costs much less.
Actually from what I've read on this site,the World Products warhawk block is supposed to be better than the C5R...I believe it has 6 bolt mains...contact Asmokegars(Alan) as he has been waiting for one or ECS...I'm sure either one could help you...
C5R is the king, if you can afford it get it. If not I would not use the sleeves, have heard a lot of hassles on the forum by guys that went that route. WP block due out(or may be out now)is not quite as nice as the C5R, but costs much less.
From: Elmhurst, IL (West Suburb of Chicago) & Home of MEGA Horsepower
St. Jude Donor '06
Originally Posted by ICaughtVetteFever
C5R is the king, if you can afford it get it. If not I would not use the sleeves, have heard a lot of hassles on the forum by guys that went that route. WP block due out(or may be out now)is not quite as nice as the C5R, but costs much less.
C5R is KING OF THE HILL and WARHAWK BLOCK won't even be on the markets for several more months. I owned a C5R motor i had built brand new from MTI and C5R vs a Darton Sleeve is a no brainer in favor of the C5R is you have the $ to pull it off.
There is a reason why GM RACING USES the C5R Block and not a DARTON RESLEEVED ONE!!
C5R block is $6000.00 alone. I saw some recent articles about GMPP offering a new 427 sleeved LS2 block for $2000.00. I hope that number is true, because this is my next big project. I don't want to use my current LS6 block, because I will be putting that motor in something new and lightweight. I've been eyeballing the Saturn Sky, to me it is better looking than the Pontiac Soltice. The Darton block will definitely work without fuss.
C5R block is $6000.00 alone. I saw some recent articles about GMPP offering a new 427 sleeved LS2 block for $2000.00. I hope that number is true, because this is my next big project. I don't want to use my current LS6 block, because I will be putting that motor in something new and lightweight. I've been eyeballing the Saturn Sky, to me it is better looking than the Pontiac Soltice. The Darton block will definitely work without fuss.
Personally I would not buy the GM LS7 block. It is a good but not great block. A Darton sleeved LS2 block or the new Katech Cast LS2 block, both to a fit a 427 ci boar would be a much stronger block for performance and better oiling and cooling capablities.
But then again what do I know. I only have been reading and asking lots of questions for the past 6 mouths too.
C5R block is $6000.00 alone. I saw some recent articles about GMPP offering a new 427 sleeved LS2 block for $2000.00. I hope that number is true, because this is my next big project. I don't want to use my current LS6 block, because I will be putting that motor in something new and lightweight. I've been eyeballing the Saturn Sky, to me it is better looking than the Pontiac Soltice. The Darton block will definitely work without fuss.
I hate to break it to you, but the Sky is not lightweight. With the LSx engine, it weights just as much or more than the Corvette. You'd need to further lighten the car (and beef up the chassis) to make it worthwhile.
Also, there's at least a one year waiting list for the Sky, so good luck.
Much better and far far stronger. but $6,000 is not easy to swallow, just for the block.
I mentioned before with high quality parts and a C5R block I was close to $15,000 before labor, installation and testing. Not encluded were the trans and diff. rebuild for racing, clutch, CF drive shaft and hardend output shafts.
IMHO if I am going to build a bullet proof road racing engine or drag race engine you cant do it cheaply and expect it to last very long.
A show 427 engine, who cares you arnt driving it much any way.
I hate to break it to you, but the Sky is not lightweight. With the LSx engine, it weights just as much or more than the Corvette. You'd need to further lighten the car (and beef up the chassis) to make it worthwhile.
Also, there's at least a one year waiting list for the Sky, so good luck.
Hot Rod Magazine Pontiac Solstice weighed in @ 2880lbs. I read what they did to it, so it wasn't posted without being educated about it.
Hot Rod Magazine Pontiac Solstice weighed in @ 2880lbs. I read what they did to it, so it wasn't posted without being educated about it.
Did you read about what they had to do to it to get it to 2880 lbs? They initially added 700 lbs to a base Solstice that weighs 2,860 lbs. They had to put the car on a serious diet with a full carbon fiber body. They had to drill plenty of lightening holes where there were no structural issues and remove everything that wasn't absolutely necessary. It sounds like a race car to me. I haven't priced a full carbon body, but it sounds expensive.
My point is that it's not just a simple, relatively inexpensive engine swap. I bet that once you add up the cost of everything it would be much easier and probably less expensive to start with a Corvette and lighten it instead.
Unless your heart is set on a Solstice with an LS7 in it. I've seen people put $100K into a Civic, so if that's where you heart is...
it's heavy but gm is also working on the lsx. cast iron, rated for a whopping 2500 hp. should be an anvil and come in around 2k
the c5r block is awesome but pricey. real question is how much hp?? a ls2 sleeved MIGHT be enough, or a new LS7
if you are running lots of boost, I would not recommend the sleeved blocks.
the warhawk sure looks nice to me, but I don't know if you can get them yet. hopefully by now. I think they are in the 4k price range.
hope this helps.
Cast iron block will be twice as heavy soo no matter what it is rated at you loose.
A Darton Sleeved LS2 or the new Katech cast LS2 both 4.125 x 4.0 are far stronger then the GM LS7 block. Both the Darton and the Katech could be mid 600s to mid 700 depeding on configuration and the reliabilty you want.
I am looking at a Katech LS2 427 for road racing. With all high end parts for reliabilty still looking at close to $15G for full engine.
Dont forget that high HP/TQ engines need a drive train that can handle those numbers too.
If you are just looking for performance and you dont want to pay the high price tag of a C5R setup. I would go with a 415ci LQ9 setup. To lose the 80lb weight increase change to some lighter sport seats, lighter rotors and calipers, nice coilover setup and lighter wheels. The horsepower and tq difference would be very small, but you will have a fast combo that handles like a dream. Now for boost I would do the same and just go with a 408ci. Iron is tried and true. Why abandon something that works? You can do all of what I have suggested and still be cheaper than going with a C5R setup. When I took my car to Sebring with my iron block and minor suspension upgrades I could not tell I had an extra 80lbs on the nose. I had been there many times with the stock alum and I was surprised I could not tell. The only time I noticed any difference is when I had an instructor in my car. He was 245lbs. He even took my car for a spin and said it handled well for a car with a iron block. Unless you race professionally I dont think squabbling over the weight of a small child on the nose is important.