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Better parts, and it's only a cam swap away from making more power than a 402 for less $.
Those pistons are better than a forged 402???
You can get a 441 600rwhp for 14k. Actually I don't see what all the stink is about. Just about every tuner offers a darton re-sleeve 427+ that has been perfected and will outperform this motor in every way. The rotating assembly is garbage and it is simply a great STOCK offering. The aftermarket has had much better for a long time now. If you buy this motor the pistons and connecting rods are the first to go. You can buy the heads and intake for any block if they prove themselves to be better than a ported and worked LS6 or AFR with the LSX manifold.
Buy the block and get a great rotating assembly. If you cant do the work buy a forged superstroker from an established tuner that runs 9's in their R&D cars. It will save lots of $$$
Last edited by SpinMonster; Jun 22, 2005 at 06:28 AM.
You can get a 441 600rwhp for 14k. Actually I don't see what all the stink is about. Just about every tuner offers a darton re-sleeve 427+ that has been perfected and will outperform this motor in every way.
That may all be a little overstated? Perfected? How many 441 600rwhp cars are running around? How many without any problems?
Originally Posted by SpinMonster
The rotating assembly is garbage and it is simply a great STOCK offering.
It is a great Stock offering, but I wouldn't say it is "garbage".
Originally Posted by SpinMonster
You can buy the heads and intake for any block if they prove themselves to be better than a ported and worked LS6 or AFR with the LSX manifold.
I agree with some of your points, but from a reliability, warranty, etc standpoint, the LS7 motor with bolton's will be f'ing bad to the bone.
If you haven't read this about C5R blocks vs Re-sleeved blocks (I know we are not talking about a C5R block), you might find it interesting. GM does some things right. Besides, the guy that wrote that knows his $hit.
That may all be a little overstated? Perfected? How many 441 600rwhp cars are running around? How many without any problems?
So does CARTEK and EAST COAST SUPERCHARGING unless 700 flywheel power and the ability to go to much higher on boost is a bunch of lies. As far as how many of these are driving around...a few more than LS7's
NO I think its accurate. The machine shop in NJ where CARTEK gets their blocks done has had 1 (THATS ONE) failure in 5 years. Besides which you can just buy the LS7 block now if its so great.
It is a great Stock offering, but I wouldn't say it is "garbage".
then buy the heads and manifold but TEA has gotten near 340 cfm out of the LS6 and AFR heads...
I agree with some of your points, but from a reliability, warranty, etc standpoint, the LS7 motor with bolton's will be f'ing bad to the bone.
If you get it installed at the tuner in question it comes with a warranty all for 14k
If you haven't read this about C5R blocks vs Re-sleeved blocks (I know we are not talking about a C5R block), you might find it interesting. GM does some things right. Besides, the guy that wrote that knows his $hit.
The issue you are overlooking is that you are buying a crate motor that has crap pistons that would have to be changed for any meaningful power increaseunless your goal is 500-550 rwhp in which you can get that with a 8k 402. Yes there are lots of them out and you can go get lots of quotes to show us all from LS1-tech. Yes the LS7 is good but to get to the level of a forged 427 that is already out and has been for years it needs a few thousand in mods....why when you can just get one installed for the same price as this stock crate motor?....witrh a warrany.
Last edited by SpinMonster; Jun 22, 2005 at 01:44 PM.
J-rod,
I think you are on to something. Cam and maybe springs and you got a big power machine.
Now back to the cast pistons. N/A motors built by GM run 220-230 water temps, 300 oil, small rings, head cambers that don't match bores(C6). This has Detonation all over it. Cast pistons are not good things.
The availability of the LS7 cylinder head castings, intake manifold and the 4.125" bore block excite me but the whole crate motor idea does not.
The $13K price is not a bad deal at all if the 500hp will keep you happy and you dont mind the work required for a retrofit.
The titanium parts in the motor have a nice WOW factor, but I have a feeling they are not race quality titanium parts like are available for 9000rpm race engines. I have a feeling these are more of a titanium alloy that help a bit with weight and a lot with marketting.
Either way, kudos to GM for coming out with a kickarsed OEM engine that is available in a crate!
If you haven't read this about C5R blocks vs Re-sleeved blocks (I know we are not talking about a C5R block), you might find it interesting. GM does some things right. Besides, the guy that wrote that knows his $hit.
The race prep of the C5R block is where I'd like to go - with the LS7 heads, intake, crank and hopefully the Dry Sump. Will the Dry Sump work with the C5R block???
The rods are TI. The specific alloy being used has been posted. For some reason I am think it was 6ALV something... Anyway, it was good alloy from what I remember.
The only work I see is knock sensors and the dry sump.
The race prep of the C5R block is where I'd like to go - with the LS7 heads, intake, crank and hopefully the Dry Sump. Will the Dry Sump work with the C5R block???
According to the catalog, the C5R block is machined for a dry sump system. I don't know if the system is the same one as what is in the new Z....
We have put many dry sump (aftermarket) systems on ls1, ls6 and the c5r block. They have worked great, but this new system from GM has us thinking. We are looking foward to the first one we have pulled apart. Then we will know much more on the whole motor-oil system.
One thing I've learned about estimate is that I usually have to double it by the time everything is done.
Peoples have been guesstimating the cost of getting this crate motor to work in the C-five at about $3000 which mean it will likely be closer to $6000.
A good deal still but not a great one.