402 or 408???
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Melting Slicks
Joined: Jan 2005
Posts: 3,315
Likes: 28
From: Wa
402 or 408???
Which would be the better one to go with.Might want to do F/I or TT in the future.Also heard there is something else new coming out in November,a 412 or something like that.
Safety Car
Joined: Apr 2004
Posts: 3,932
Likes: 8
From: Hayward California
When I picked up the 408 it was because the alum. 402's weren't really proven yet. Since then, the 402's seem to be holding up pretty well.
If you know you'll be pushing it past 16#'s... not just wanting but knowing that 14 or 15 will not get you what you want, then go 408.... otherwise, a 402 will be plenty and noticeably lighter. BTW, unless your power-adder of choice is a rear-mount or centrifugal, the stock cubes can lay down more than enough power down low.
I took my brother for a ride through the canyons the other day and drove it hard enough to get the tail end on the verge of kicking out, coming out of the corners. At the end of the run I showed him my log and pointed to the highest value of my throttle position... it was 49%.
If you know you'll be pushing it past 16#'s... not just wanting but knowing that 14 or 15 will not get you what you want, then go 408.... otherwise, a 402 will be plenty and noticeably lighter. BTW, unless your power-adder of choice is a rear-mount or centrifugal, the stock cubes can lay down more than enough power down low.
I took my brother for a ride through the canyons the other day and drove it hard enough to get the tail end on the verge of kicking out, coming out of the corners. At the end of the run I showed him my log and pointed to the highest value of my throttle position... it was 49%.
Safety Car
Joined: Jul 2004
Posts: 3,706
Likes: 2
From: Valrico Florida
As for weight the car did not feel different with the 408ci iron block going from a alum 346ci as far as weight. It was suggested to me to just upgrade the sway bars and I wont notice a difference. Well I did what was suggested and with the extra horsepower the car feels lighter
When I hit the corners with the stiffer sway bars the car handles just as great. Now this is just my observation. My old setup has seen Sebring many times. More times with the 408ci than my old stock 346ci. Of course the car went around the track a lot faster with 555rwhp than 330rwhp As for boost levels.... I think the LS2 block can hold up to over 15lbs of boost. Why do I think this? It has done it many times already. The only reason I am keeping my iron block for my future setup is because all I have to do to get rid of the extra 80 to 100lbs the iron block adds is add 1lb more of boost.
When I hit the corners with the stiffer sway bars the car handles just as great. Now this is just my observation. My old setup has seen Sebring many times. More times with the 408ci than my old stock 346ci. Of course the car went around the track a lot faster with 555rwhp than 330rwhp As for boost levels.... I think the LS2 block can hold up to over 15lbs of boost. Why do I think this? It has done it many times already. The only reason I am keeping my iron block for my future setup is because all I have to do to get rid of the extra 80 to 100lbs the iron block adds is add 1lb more of boost.
Team Owner
Joined: Jul 2003
Posts: 20,474
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From: Detroit
Crab - why not do an all bore? That's much better than a stroker for a turbo combo and there are tons of blocks on the market to choose from. Everything from s stock LS1/6 to a 388 C5-R (my dream motor).
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Joined: Jul 2004
Posts: 3,706
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From: Valrico Florida
Originally Posted by mdhmi
Crab - why not do an all bore? That's much better than a stroker for a turbo combo and there are tons of blocks on the market to choose from. Everything from s stock LS1/6 to a 388 C5-R (my dream motor).
