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Thread: 427 or 454 LSx Stroker?
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09-27-2008, 11:46 PM #1
427 or 454 LSx Stroker?
My Camaro has 130k miles on it... this Winter I'm planning to tear it all apart and rebuild/replace the motor, trans, suspension.... and so on... I was thinking about motors... I was looking at a 427 or a 454 stroker with the LSx block. I'm planning to put a Procharger on it with about 15-20 psi of boost and to top it off... about a 75 shot of Nitrous.... just the cherry on top!!!! haha!! and to the question if I really need that much power.... YES I DO... why?? Just because...
Anyways... I want to run around 800 rwhp... I know everything needs to be forged so that's not a problem. but which setup with which pistons, heads and cam? any suggestions? Thanks for your input
I was also interested in Kaetech's street attack 427 that was in GM High Tech magazine..... Not sure which one will be better powerwise thoughLast edited by BlueMagicSS; 09-28-2008 at 12:48 AM.
2000 Camaro SS, M6, Edelbrock LT's, Eibach Pro-Kit, Edelbrock Adjustable Coil-Overs
1986 Camaro Iroc LS1 Swap In Progress
Blue Magic...
Like Pepsi It's A Brand Name...
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09-27-2008, 11:59 PM #2
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09 EclipseGT 75 Chevy 4x4- 2001 Trans-Am 13 F-XT
I want to do the same without the nitrous and using the LSX block. I like the 454 size. I'm getting the rest of my car ready first.
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09-28-2008, 01:14 AM #3
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Well, first of all, how much are you willing to spend, cause that much HP isn't cheap.
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09-28-2008, 01:27 AM #4
In no way is it cheap. Money isn't really an object because I want my car show quality and to run, handle and have a good 1/4 mile time
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09-28-2008, 01:39 AM #5
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Why don't you put a turbo on there instead?
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09-28-2008, 01:03 PM #6
I haven't comepletely decided on a turbo or a supercharger.... I'm kinda in between so far but it's about which one is most efficient and which one will give me more power. I've always loved chargers though.
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09-28-2008, 05:11 PM #7
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800RWHP??
Do you need the LSx block?
Because a solid 408 with a blower should get you there.
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09-28-2008, 05:24 PM #8
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09-28-2008, 05:28 PM #9
Go big or go home right? lol only a 75 shot? hell you wont even notice that
at least at min 150 for your set up I would shoot 300.
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09-28-2008, 05:52 PM #10
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09-28-2008, 06:05 PM #11
Well if I have that much motor I better be in the 9's or so.. If not faster... But in a 6 speed it depends on the driver too... But I was thinkin a 75 shot because I didn't wanna blow the motor up... Which would be ok to do??
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09-28-2008, 06:10 PM #12
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M6 in the 9's.
Takes a hell of a driver, and a hell of a set-up.
Get me a job making whatever you are.
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09-28-2008, 06:17 PM #13
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09-28-2008, 06:25 PM #14
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09-28-2008, 06:31 PM #15
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09-28-2008, 06:35 PM #16
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09-28-2008, 06:37 PM #17
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9 second car. Get ready to tear that thing apart and replace just about everything. Not only will you need to upgrade the motor, your gonna need a new tranny, rear end, and fuel system along with a roll cage. I hope you have about 30 grand laying around to do all this.
Last edited by UTVols98; 09-28-2008 at 06:44 PM.
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09-28-2008, 06:46 PM #18
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09-28-2008, 07:30 PM #19
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Ok then. You'll need some L92 heads with a larger cc chamber, forged dished pistons. Go with a turbo since they make more power up top and are more efficient since they run off of the exhaust and not the engine crank. The cam, you'll prob want a 22x duration custom grind with no valve overlap. Have a sheetmetal intake custom built for your application.
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09-30-2008, 10:56 AM #20
Hell, with a 427 or 454, a cam in the 220s is way too small. It would need at least a high 230s, low 240s area duration, possibly more. Well, for n/a and supercharger for sure, not 100% sure on cam specs for turbos, they can be odd sometimes.
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