Who has built a 441 or larger?
Who has built a 441 or larger? I'm considering doing a 441 or 447 but haven't found a lot of info on them. The only places I know that have built them are ECS and Rapid Motorsports. I'd like to hear from people or tuners who have actually built one what kind of results they had, and if my hope of keeping the motor build near $15k is realistic. Thanks
On The Tree
Joined: Apr 2004
Posts: 157
Likes: 0
From: Brampton, Ontario
Originally Posted by MPM IV
I'm considering doing a 441 or 447 but haven't found a lot of info on them. The only places I know that have built them are ECS and Rapid Motorsports. I'd like to hear from people or tuners who have actually built one what kind of results they had, and if my hope of keeping the motor build near $15k is realistic. Thanks
Big, instantaneous power, everywhere.
$15K is not realistic for this kind of motor. Big motors making big power require big money to set up done right. You need supporting mods also like a stout clutch, shafts, 1 7/8 w/ 3" full exhaust, strut brace, tune, Fast Intake, 90mm T/B and that all adds up quickly etc. Don't get me wrong, it can be done, but you'd be using inferior parts, and leaving many important items out that you will likely not extract the full potential out of the motor.
Good talking to you today Dave. I feel almost smart enough to get myself into trouble!
I appreciate everyones input and hope theres more coming.
I realize that I'll need a lot of supporting mods. I already have the HRE 541s
. I may have to wait a bit, but I won't be using inferior parts.
I appreciate everyones input and hope theres more coming.
I realize that I'll need a lot of supporting mods. I already have the HRE 541s
. I may have to wait a bit, but I won't be using inferior parts. Trending Topics
We have built a few large CI LS engines here at W2W. I have a daily driver 455ci on the dyno now for break in and power audit, it will find home in a 2005 GTO.
We have also built na drag type engines that are large ci. What are your goals for performance with the engine and what does your car weigh?
Kurt
We have also built na drag type engines that are large ci. What are your goals for performance with the engine and what does your car weigh?
Kurt
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Verdad Gallardo My last car was a 396 lt4 vette. It had no cats, 3.73 gears, and a fairly big cam on a 108 lobe sep. My goal is a reliable daily driver with every horse I can get, without the smell of raw fuel, or the 1k-1200rpm idle. I also want to keep the 3.42 gears. I did a lot of things with the last car multiple times trying to pick up more power, so I'm trying to avoid that. Not sure on the weight, but it's an 04 z06.
Staging Lane
Joined: Dec 2001
Posts: 97
Likes: 0
From: crystal lake, IL
We started with an LS7, so 14K isn't realistic in this case.
It's going in this car: http://www.schwartzperformance.com/CutlassLSX455.htm
Using a GM carbureted style intake converted to efi with the MAF and drive by wire set-up adapted to it, mainly to make it easier for the 442 style hood functional.
The car will have one of these chassis: www.gmachinechassis.com
It's going in this car: http://www.schwartzperformance.com/CutlassLSX455.htm
Using a GM carbureted style intake converted to efi with the MAF and drive by wire set-up adapted to it, mainly to make it easier for the 442 style hood functional.
The car will have one of these chassis: www.gmachinechassis.com
So primarily chassis dyno numbers that are as high as possible while keeping a reasonable idle below 1000rpm? Do you race the car at all on the road course or dragstrip?
Kurt
Kurt
Originally Posted by MPM IV
My last car was a 396 lt4 vette. It had no cats, 3.73 gears, and a fairly big cam on a 108 lobe sep. My goal is a reliable daily driver with every horse I can get, without the smell of raw fuel, or the 1k-1200rpm idle. I also want to keep the 3.42 gears. I did a lot of things with the last car multiple times trying to pick up more power, so I'm trying to avoid that. Not sure on the weight, but it's an 04 z06.
In the past I went to the track a couple of times a month. I went tonight but it was closed. I've never been on a road course but would like to. My goal isn't a big number as much as a realy fast car, though I can see how it might have sounded that way. Theres a lot of long straight roads out here, and I just want to enjoy them.
The road course is fun although I have only been a few times, and the straight long roads are very cool.
Within your budget I would give a serious look at a L92 based block with a 4 inch crank. I know this is only 415 cubes but it can be built with high quality parts to give many years of performance without headaches while staying inside your budget.
Kurt.
Within your budget I would give a serious look at a L92 based block with a 4 inch crank. I know this is only 415 cubes but it can be built with high quality parts to give many years of performance without headaches while staying inside your budget.
Kurt.
jsworkstd- Looks like a very cool project.
427- I'm afraid you might be right, I just don't want to spend the money and six months later wish I had waited and saved up to go bigger.
racer7088- I sent you an e-mail last week, not sure if you got it.
What are people using for heads and intakes on these motors? I appreciate all the input.
427- I'm afraid you might be right, I just don't want to spend the money and six months later wish I had waited and saved up to go bigger.
racer7088- I sent you an e-mail last week, not sure if you got it.
What are people using for heads and intakes on these motors? I appreciate all the input.
Originally Posted by MPM IV
What are people using for heads and intakes on these motors? I appreciate all the input.
