Simple question about 408 into a C6
02-04-2008, 12:24 AM
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Staging Lane
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Simple question about 408 into a C6 I searched and I can't find much info about peoples experiences with 408's and the C6 LS2.
I have a few questions to ask.
Why do some people prefer aluminum blocks over iron blocks and vice-versa? I know that the aluminum blocks are lighter, but I've heard that Iron blocks take more abuse.
And the LS2 heads, do they flow much better than the LS1 or LS6 heads? When doing a 408 shortblock upgrade for a LS2, are the stock heads going to flow satisfactory? How much horsepower can be achieved by swapping out heads alone?
I have a few questions to ask.
Why do some people prefer aluminum blocks over iron blocks and vice-versa? I know that the aluminum blocks are lighter, but I've heard that Iron blocks take more abuse.
And the LS2 heads, do they flow much better than the LS1 or LS6 heads? When doing a 408 shortblock upgrade for a LS2, are the stock heads going to flow satisfactory? How much horsepower can be achieved by swapping out heads alone?
02-04-2008, 12:29 AM
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the ls2/ls6 heads are both a 243 casting, and with a good p/p job can be amazing performers.
i'll throw this in too.. the aluminum block is significantly lighter. i'd assume people want to stick w/ alum blocks to keep the handling and braking characteristics the same as stock. the added weight might throw it off a bit.
and i'm pretty sure the 408 is attained with an iron block, and the 402 with an ls2 aluminum block.
i'll throw this in too.. the aluminum block is significantly lighter. i'd assume people want to stick w/ alum blocks to keep the handling and braking characteristics the same as stock. the added weight might throw it off a bit.
and i'm pretty sure the 408 is attained with an iron block, and the 402 with an ls2 aluminum block.
02-04-2008, 01:07 AM
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Staging Lane
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Thank you.
So it is possible to put a 408 shortblock into a C6.
My goal is for a fast straight line car that can take abuse. That is why I am leaning toward the iron block 408 as opposed to the aluminum. Am I making the right choice?
So it is possible to put a 408 shortblock into a C6.
My goal is for a fast straight line car that can take abuse. That is why I am leaning toward the iron block 408 as opposed to the aluminum. Am I making the right choice?
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02-04-2008, 01:32 AM
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Staging Lane
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I want to stay away from spray.
I will probably end up doing a heads and cam swap on the stock LS2 motor, but at the same time I don't want to waste money since I will probably need a cam larger than a 230/228 cam for the 408.
I will probably end up doing a heads and cam swap on the stock LS2 motor, but at the same time I don't want to waste money since I will probably need a cam larger than a 230/228 cam for the 408.
02-04-2008, 01:39 AM
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honestly i wouldnt worry about a 408 right now. not at all. your engine has just barely been broken in dude. you may as well wear it out before you go looking at a new shortblock.
02-04-2008, 06:29 PM
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save your money for F/I....
a good heads and cam combo will run you $$
save another 1-2k maybe less, on top what the heads cam will run you and make a lot more power and be very drivable!
plus once you blow your enigne you can forge and up the boost and run 800 hp...
a good heads and cam combo will run you $$
save another 1-2k maybe less, on top what the heads cam will run you and make a lot more power and be very drivable!
plus once you blow your enigne you can forge and up the boost and run 800 hp...
02-04-2008, 10:45 PM
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You have a good point. But realistically speaking, the F/I kits out there that cost just $2k more than a 408 setup are kits that require the addition of an after market hood + paint which would then cost the same as a F/I setup that does not require the hood (such as a procharger). I would love to go procharger, but it seems as though a decent kit will run in excess of $8,000. That is $4,500 more than a 408 excluding the cost of install. A heads and cam setup is an extra $1600. Now that equals to a $2900 difference. Let's assume most shops charge $80/hour. So the install of the heads, cam, and 408 would probably be less or equal to 36 hours of shop time. (what I'm trying to say here, is that I could probably have a 408, heads, and cam installed and tuned for less the cost of a procharger "kit" alone).
I would guess that a procharger setup could be installed with less labor (hour wise) than an assembled stroker motor. I may even be wrong here. Does anyone want to clarify?
I would guess that a procharger setup could be installed with less labor (hour wise) than an assembled stroker motor. I may even be wrong here. Does anyone want to clarify?
Last edited by wrxrick; 02-04-2008 at 10:59 PM.
02-05-2008, 03:28 PM
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02-06-2008, 12:03 AM
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well the 408 is a good motor and if thats what you want then do it! post up pics and what everything ran you, and that way you have exactly what you want! I would say get what you want if you really want it, and do it right the first time if you can afford it
