402, 408 advice?
Thread Starter
Drifting
Joined: May 2003
Posts: 1,551
Likes: 0
From: salt lake city UT
402, 408 advice?
My forged 346 has some oil pressure/ bearing probs. I am thinking of going
with a 402 or 408 and maybe a blower paxton or f1.
who has the best deals/ quality and what setup should I do?
I live at 4500 ft elevation so keep that in mind.
with a 402 or 408 and maybe a blower paxton or f1.
who has the best deals/ quality and what setup should I do?
I live at 4500 ft elevation so keep that in mind.
Le Mans Master
Joined: Jan 2001
Posts: 5,786
Likes: 6
From: Lafayette Colorado
I am running a 402 on a LQ4 block with a stock bore of 4.00". I chose the iron block over aluminum for the iron block's extra strength and cylinder wall thickness. I plan on pushing about 15 to 16 pounds with the F1-R.
Another option is to use the L92 block. It is an iron block also with the same wall thickness are the LQ4 block, but has a bore of 4.060". With a 4.00" stroke crank, that will give you 414 CID and all the strength to run high boost. If the L92 would have been out when I started my project, I would have gone that route.
Keith
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Le Mans Master
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From: New Blue 9.80 @ 142MPH stock motor
St. Jude Donor '03-'06-'07-'08
Race Director
Joined: May 2003
Posts: 12,725
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From: ECS : WTF did you break now and HTF did you break it this time
you have sts on the car right? I have a forged 346 from ecs with stock heads, mild cam, manifolds, ecs fuel system blah blah blah.....710/640 out of a mild 346.....after that you better have a turbo 400 and a brake...I can't get the power down as it is. Give ECS a call....I think you'd be more than happy with my setup and it'd be a hell of alot cheaper than a 402/408 buildup, The guys talked me out of a bigger motor and I'm honestly not complaining.
Thread Starter
Drifting
Joined: May 2003
Posts: 1,551
Likes: 0
From: salt lake city UT
you have sts on the car right? I have a forged 346 from ecs with stock heads, mild cam, manifolds, ecs fuel system blah blah blah.....710/640 out of a mild 346.....after that you better have a turbo 400 and a brake...I can't get the power down as it is. Give ECS a call....I think you'd be more than happy with my setup and it'd be a hell of alot cheaper than a 402/408 buildup, The guys talked me out of a bigger motor and I'm honestly not complaining.
Last edited by master blaster; Mar 17, 2007 at 02:18 PM.
Race Director
Joined: May 2003
Posts: 12,725
Likes: 14
From: ECS : WTF did you break now and HTF did you break it this time
I live at 4500 ft elevation....so cars feel like they lose 100+ hp compared to sea level. I dont track the car but give it hell for an hour or so in the mountains... Also i think I am throwing in the towel and getting rid of the STS....not happy.....plus I like a loud car when wot....I may go back to a supercharger on a 402.....but I am all
Team Owner
Joined: Apr 2001
Posts: 26,794
Likes: 614
From: Elmhurst, IL (West Suburb of Chicago) & Home of MEGA Horsepower
St. Jude Donor '06
you have sts on the car right? I have a forged 346 from ecs with stock heads, mild cam, manifolds, ecs fuel system blah blah blah.....710/640 out of a mild 346.....after that you better have a turbo 400 and a brake...I can't get the power down as it is. Give ECS a call....I think you'd be more than happy with my setup and it'd be a hell of alot cheaper than a 402/408 buildup, The guys talked me out of a bigger motor and I'm honestly not complaining.
100%, time and time again it has been proven like this gentleman and others like ECS, that a good forged LS1/6 346/7 motor is all you need with forced induction to make all the stupid power in the world, much more than you will ever need or be able to hook up on the street. Heck, i'm making 600+rwhp on a bone stock LS6 motor with my ECS D1SC kit running 10lbs!
Thread Starter
Drifting
Joined: May 2003
Posts: 1,551
Likes: 0
From: salt lake city UT
100%, time and time again it has been proven like this gentleman and others like ECS, that a good forged LS1/6 346/7 motor is all you need with forced induction to make all the stupid power in the world, much more than you will ever need or be able to hook up on the street. Heck, i'm making 600+rwhp on a bone stock LS6 motor with my ECS D1SC kit running 10lbs! cars here lose over a hundred hp compared to sea level....I lived in FL with my procharger and was 542/ 541 rwhp/rwtq ....then i had a shop up the power to 650 rwhp and send me the car in UT at 4500 ft.....the car was
slower with more power at the 4500ft. the new power was 13-14# heads /cam.
thats why I am looking to go bigger.
...trust me..i would love to save money!