Gordon0652

iTrader: (4)

You can get your goal with an LS2 402 and a nice camshaft, hell for the few extra bucks go with the 416 LS3. Anf if you wanted to in the future spray it
Call up Bryan at LME (713)-849-4505 he built my motor and he is very well known.
Look up Latemodle Racecraft be builds their engine also. Badass stuff..

Orange Juice

iTrader: (3)

If you think about it when you total the whole cost of a build, the costs are the same for the heads, intake, exhaust, fuel system and intake on any combination that you put together from a 402 to 454. My rotating assembly was the same price even if I used an ls3 block or a ls7 block so really all I payed for was the premium over the ls3 block.

02sslayer

iTrader: (4)

thanks man, i will save that number and give him a call. but i wana stay away from nitrous, i dont have anything against it other than its power that isnt there whenever you want. and if i did spray i would only do it at the track.
i would also like to have the monster tq of a 454, plus a 454 is so old school(yes i know its not a bb 454 like the old one but still)
thats a good point, so a lsx454 would be about 2500$ more than a 402. i think it would be worth it to save a lil longer for that.

Brigger18

iTrader: (20)

There's an old saying "There's no replacement for displacement".

02sslayer

iTrader: (4)

and how true it is.

Gregory

iTrader: (4)

I vote for the aluminum 416/418 as it is cost effective and allows for larger 2.160" valves. Keep in mind the sleeve length though to reduce piston rock at bottom dead center. With a four inch stroke I would want 5.800" selves, or something real close to that length.

I made just over 550 RWHP with my LS2-402, but it is a balancing act to find the correct camshaft and heads. See my signature for the details.

02sslayer

iTrader: (4)

wow those are some strong numbers! i wish i had never bought my head and cam package for my stock cube LS1. i could have put 3k toward a shortblock instead. fml

Devils Mentor

iTrader: (20)

I'm doing a 415, maybe a 425 with a LQx block. My Crank is a 4.125 / Rods 6.125 / Pistons .005 (415) or .05 (425). I have been giving it thought about going with a LS3 or L92 block so I can go with an even bigger bore. I will be running the WCCH Stg3 L92's with a Vic Jr and 4150; as for the cam, not sure yet. I'll be pushing this through a M6 and a MWC Fab9 with 4.11's... I looking for 550+ RHP


DM

Gordon0652

iTrader: (4)

And there is a new saying "...but there is - Forced Induction"

Schwanke Engines

iTrader: (1)

Or you could do our aluminum LS3 415 for $4199 and that would be the best deal.
http://www.schwankeshortblocks.com/s...?i=1497&c=1216

Just go to the link and add the aluminum block option.

2002silverz28matt

one plus to the 408 is you dont have to do the conversion stuff, few hundred saved there too

Chevy2169

[/QUOTE]thats a good point, so a lsx454 would be about 2500$ more than a 402. i think it would be worth it to save a lil longer for that.[/QUOTE]

I've priced up the lsx 454 crate from a few dealerships. Cheapest I got was 9800 with the heads from a dealer in NC.

Brigger18

iTrader: (20)

Actually the saying I saw is " The replacement for displacement is boost". I seen that on a t-shirt somewhere. I like boost.

02sslayer

iTrader: (4)

ya i guess boost is the perfect replacement for displacment lol

trik396

iTrader: (4)

An even older saying is "The only thing that beats cubic inches is rectangular dollars"...

LPE 403

iTrader: (6)

I disagree, unless you're content with not optimizing the build. All four components you mention should have some variation (especially over a 50 cube variance). Entirely too many variables in combination with heads, cams (I know it wasn't mentioned), etc. though you might pull off injectors and intakes being in the "all the same" possibility, one that works for a 402 may not for a 454. Again, hard to broad brush "interchangeable" over that range.

My build started as a simple 440....cathedral port heads, 102 intake, etc. For a few extra bucks turned into ls7 heads and naturally intakes changed. Changed direction and upgraded to a 460. Could have used the same components but the cubes justified proportional increases...going to a C5R style head and sheetmetal intake. And of course, for a few more bucks

OP, define your power goals, use (street, track, etc), what you're willing to sacrifice for specific 'wants' , outline your budget (then add 20%, lol) but build from the bottom up.

Mellisz06

I have an SLP 402 shortblock for sale it is new in the crate. I had a timing chain brake and SLP replaced the shortblock under warranty. I am selling it because I want build a road race shorter stroke engine. it was making 535 rewhip and 550 rwtq in a miata. These are great engines low revving and tons of torque the dyno runs had over 500 ft # from 2800 rpm on up. I used Dart heads, 1 3/4 headers fast 102 intake about 625 lift I could give you exact specs if you are interesed.

Mike
Mellis112@aol.com

02sslayer

iTrader: (4)

my power goal is about 550hp and about 550tq, i want the hp and tq to be pretty close.
i will drive the car on the street more than the track and it will be drivien in the summer and some nice weekend dayds in the winter. right now i am running a large cam in a 346ci and i dont mind it at all, so i wont mind having a large cam in a bigger motor... however that will conflict with goal #1
to be honest im not even sure what i want yet, im in the very beginning stages of planning things out. i dont even plan on buying any parts for at least a year. i dont even know what my budget will be. im unemployed right now but i am close to working as a deckhand on tugboats or dredges, i will make plenty of money once that happens. so if my budget allows it i will do a 454 build just for the hell of it lol sorry i know that is a pretty generall answer but im just not sure on anything yet. and the way i am i will be set on something and change my mind 2 months later. i had mu heart set on probly 5 different H/C packages before i chose the one i currently have.

if i had the money right now i would be all over this.

Devils Mentor

iTrader: (20)

Dude... he's been a member for less than a month and has less than 3 post and you'd be handing over you money that quickly... WOW!

I think you need to slow down and focus a little more, or you'll be crying in the feedback section

And I'm not saying anything specific about Mellisz06, this should just be obvious with any new member

DM

MPM IV

iTrader: (3)

ERL dry sleeve 454. $5000 and no iron block.

Research and save. Don't settle, or you'll probably end up wanting more and re-doing it which cost even more.

The only real difference in the total build cost will be the short block, which isn't that significant in the grand scheme of things.

As far as spray goes, a strong NA engine is a blast, and that power is there all the time, but on occasion a couple hundred hp extra is pretty cool too. Would you realy need 800 rwhp ALL the time, or could could you get by with only 600 most of the time?