408 stroker?

[a69nova]

Trying to find some info on this engine combo. I see a lot of people stroking the LS1 to a 408. Does anyone have or can share some details about this kind of build?

thanx Mike

[unnatural aspirations]

i believe you need to buy a whole engine stroker kit with rods,pistons,crank and cylinder sleeves.it gets pricey and ive seen 408 shortblocks for cheap.

[Sarge]

Most of us went the LQ9 iron block route when building our Stroker motors.
Just stay away from the SLP motors.....

[mrr23]

6.0L iron block from a truck. bore it to 4.030". then add 4.00 stroke crank and 6.125" rods and you have a 408 motor.

you can get the 402 motor from scoggin dickey. uses the aluminum LS2 block.

[SR71]

How much is the 6.0L truck block, and will the new "moderately" priced ls7 parts work with it. I've been thinking about pulling the LS1 from the T/A, and I've been looking into a 402ci or 408.

[SLED28]

Definitly 402 alum is the way to go.

[Sarge]

How much is the 6.0L truck block, and will the new "moderately" priced ls7 parts work with it. I've been thinking about pulling the LS1 from the T/A, and I've been looking into a 402ci or 408.
Yes the LQ9 block is the truck block...same same....and yes the LS7 heads and intake will fit...

[SDMForever]

Go to a 402 if you are not doing boost doing a 408 is quite a difference in price for only 15hp

I went with the ls6 block and here are my specs: 402 C.I. Engine:,4 inch Eagle 4340 Crankshaft,6.125 Eagle 4340 Rods,Mahle 12cc Pistons,Magic Stick V.4 Cam,Lingenfelter High Performance Oil Pump,Power Force Crank Pulley,LPA Custom Ported Polished Heads,7.4” Comp Cams, Chrome Moly Pushrods,PRC Gold Dual Spring kit,MSD Blaster Coil packs,K&N FIPKII Cold Air Intake,Custom Ported and Polished Throttle Body,

beleive it or nt my engine dynoed a 827 at the fly wheel. I think its cause of the custom heads.

[SDMForever]

I would not care about going with the ls2 block its only 50lbs lighter then the ls6 mount your battery in the trunk and that will be the same. also if you want to run boost the iron is stronger.

[Sarge]

Iron block all the way....hell...as mentioned I relocated my battery to th trunk and just about made up for the extra 72lbs of weight the iron block has over the aluminum block....and yes...the Iron Block will handle all the RWHP yyou care to throw at it....I bought my 402 Stroker spinner assembly from Henricks Motor Sports in Houston....Like $1800 bucks shipped....here is the build list...
RWHP 512
RWTQ 533
GM LQ9 Iron Block
Forged Balanced Lunati Crank Walbro 255 Fuel Pump
Mahle Forged Pistons/Rings FAST Fuel Rails
Lunati Forged Rods 48lb Injectors
ARP Rod Bolts
SLP Underdrive Pulley
LS6 Lingenfelter Ported High Flow Oil Pump
Clay Smith Cam 238/242, .602/.610 lift on a 114 LSA
Patriot 243 Heads 64cc Chambers flow @ 340 cfm @.640 lift
Patriot Gold dual valve springs .650 lift
Titanium Retainers
ARP Head Bolts
Nick Williams 90mm Throttle Body
MafLess SD Tune
FAST 90mm Intake
Perma-Cool Remote Dual Oil Filters
Perma-Cool Oil Cooler

[SR71]

Thanks guys. Looks like I'll go with the iron block 402. Trying to put money aside to save up for it right now. I should be set in a couple of months, and pull the LS1 out and drop in the 402.

[Sarge]

Dont drop it on your toes man...trust me on this one...

[Redphoenix1998]

I dropped a 4l80 on my knee once, wasn't pretty at all. Slipped out of the shipping container when loading it into the back of my van to take home. Tranny was fine, knee was jacked up for a couple months. Nothing broken, just hyperextended. And Yes, Iron block all the way. I was going to go all motor but I decided on a turbo setup and decided the stock cubes would be fine for me.

[SDMForever]

I dropped a 4l80 on my knee once, wasn't pretty at all. Slipped out of the shipping container when loading it into the back of my van to take home. Tranny was fine, knee was jacked up for a couple months. Nothing broken, just hyperextended. And Yes, Iron block all the way. I was going to go all motor but I decided on a turbo setup and decided the stock cubes would be fine for me.

Ouch that sucks!

[SLED28]

Go to a 402 if you are not doing boost doing a 408 is quite a difference in price for only 15hp

I went with the ls6 block and here are my specs: 402 C.I. Engine:,4 inch Eagle 4340 Crankshaft,6.125 Eagle 4340 Rods,Mahle 12cc Pistons,Magic Stick V.4 Cam,Lingenfelter High Performance Oil Pump,Power Force Crank Pulley,LPA Custom Ported Polished Heads,7.4” Comp Cams, Chrome Moly Pushrods,PRC Gold Dual Spring kit,MSD Blaster Coil packs,K&N FIPKII Cold Air Intake,Custom Ported and Polished Throttle Body,

beleive it or nt my engine dynoed a 827 at the fly wheel. I think its cause of the custom heads.

:bs: :bs:

[Sarge]

I think he meant 527 which is close to where I'm at with damn near the exact same setup....at the flywheel...I'm right around 580'ish if I throw in a 10% drivetrain loss....

[SDMForever]

im serious i forgot to add my twin garretts. sorry but with out them im at 600

[SDMForever]

hey sled what do you have

[GA Country Boy]

Go to a 402 if you are not doing boost doing a 408 is quite a difference in price for only 15hp

I went with the ls6 block and here are my specs: 402 C.I. Engine:,4 inch Eagle 4340 Crankshaft,6.125 Eagle 4340 Rods,Mahle 12cc Pistons,Magic Stick V.4 Cam,Lingenfelter High Performance Oil Pump,Power Force Crank Pulley,LPA Custom Ported Polished Heads,7.4” Comp Cams, Chrome Moly Pushrods,PRC Gold Dual Spring kit,MSD Blaster Coil packs,K&N FIPKII Cold Air Intake,Custom Ported and Polished Throttle Body,

beleive it or nt my engine dynoed a 827 at the fly wheel. I think its cause of the custom heads.

Congrats! That's a really impressive number!!! You've got a winner there!:)

[SDMForever]

thanks, I was surprised all I need now is a 9 inch.

[DadsYellowGoat]

Hey Sarge I read your post with great interest as I have just lost a piston in my 04 gto after the STS install. What CR would you suggest with that same setup.

Thanks - Lanse

[cailey37]

Most of us went the LQ9 iron block route when building our Stroker motors.
Just stay away from the SLP motors.....

Just wondering why you'd say stay away from these motors....I have one of theirs and haven't had any problems yet........do you know of any????

[SDMForever]

I heard they are pretty good. hmm

[gillbot]

Just wondering why you'd say stay away from these motors....I have one of theirs and haven't had any problems yet........do you know of any????

I was wondering the same thing. Haven't heard of any major issues with them yet.

[Sarge]

im serious i forgot to add my twin garretts. sorry but with out them im at 600
You running a 90mm intake/tb setup? Meth/Alky?

[Sarge]

Just wondering why you'd say stay away from these motors....I have one of theirs and haven't had any problems yet........do you know of any????
Oh hell yes....lots of pissed off folks.....seems SLP decided cheap on the pistons and some other critical components was the way to go....google SLP 402 and put on your reading glasses...lots of folks over a LSXTech....

[gillbot]

Looks like many of the threads about SLP on tech got removed.

[cailey37]

Oh hell yes....lots of pissed off folks.....seems SLP decided cheap on the pistons and some other critical components was the way to go....google SLP 402 and put on your reading glasses...lots of folks over a LSXTech....

Cheap on the pistons?????? They use Ross 2618 forged alloy pistons......the Mahle pistons are made of the exact same thing.......both rated at 1500hp......SLP has plenty of customers pushing over 1000+hp....

[Sarge]

Now now....I won't argue an SLP engine in recent history....but they have had more than a few issues here in the past 6-8 months...then do not honor any warranty....I would post links to other sites...but encourage you to research on your own....

[Sarge]

Looks like many of the threads about SLP on tech got removed.
Yup...they are a big sponsor there...money talks....

[Sarge]

Hey Sarge I read your post with great interest as I have just lost a piston in my 04 gto after the STS install. What CR would you suggest with that same setup.

Thanks - Lanse
Sorry man...I just saw this for the first time.....Who tuned the STS? Curious...what boost were you running/intercooler?/fuel pump?/Injectors? Curious...anyway...I assume your asking as if your gonna install the STS on a rebuilt LS1? 5-7lbs with an intercooler and a good tune....invest in a A/F meter also....and you should be good to go....the stock LS1 comes with what? 10.5-1 I think.....yeah...properly setup you should be able to run 5-7lbs of boost all day....

[cailey37]

Now now....I won't argue an SLP engine in recent history....but they have had more than a few issues here in the past 6-8 months...then do not honor any warranty....I would post links to other sites...but encourage you to research on your own....

Not an argument......just kinda curious about all this......can you PM me some links....I did a search for SLP 402 issues/problems things like that but couldn't really find much.......yes...they offer no warranty but not many will when you get motors like this.......I mean knowing we will push them to the limit everytime....

[Sarge]

Not an argument......just kinda curious about all this......can you PM me some links....I did a search for SLP 402 issues/problems things like that but couldn't really find much.......yes...they offer no warranty but not many will when you get motors like this.......I mean knowing we will push them to the limit everytime....
No arguments here....I know better than to argue with a guy about his car or his wife.....I have a warranty on my Henricks Motor Sports 402 for defects and materials...what happened...was this...on LS1tech....one guy reported a piston melting....had it analyzed and found shitty pistons (some bullshit neverheard of brand) rings and bearings were all low qaulity...I mean he had them by the balls....SLP bascially told him in front of the world no warranty...from there a few more popped up with the exact same issues...SLP told them to fuck off.....I mean they had pics/written reports from unbiased third parties who inspected the parts etc. Few popped up on other boards....So why bother with all that hassle? I'll just stick with Henricks....I'll PM you some reading materials :)

[cailey37]

No arguments here....I know better than to argue with a guy about his car or his wife.....I have a warranty on my Henricks Motor Sports 402 for defects and materials...what happened...was this...on LS1tech....one guy reported a piston melting....had it analyzed and found shitty pistons (some bullshit neverheard of brand) rings and bearings were all low qaulity...I mean he had them by the balls....SLP bascially told him in front of the world no warranty...from there a few more popped up with the exact same issues...SLP told them to fuck off.....I mean they had pics/written reports from unbiased third parties who inspected the parts etc. Few popped up on other boards....So why bother with all that hassle? I'll just stick with Henricks....I'll PM you some reading materials :)

Wow......hope I dont have the same results......I wish World Products had their LSX Warhawk block out before I ordered this motor......then I wouldn't worry about much.......that is my next motor hands down!!!!! 454ci out of a small block!!!! Can't beat that...

[SDMForever]

You running a 90mm intake/tb setup? Meth/Alky?

methanol, and fasts 90s

[Sarge]

I suspected....great numbers...what does she run?

[SDMForever]

9.275 with a 12 bolt i want a 9 inch though

[Sarge]

You got me by 1.5 seconds....I'm all motor on pump gas :)
Fun aint it:)

[SDMForever]

hell yea good time on motor!

[ramrod]

I did not have luck with SLP on my 01 WS6. I went with there stroker. It's now why I have a GTO. I had to buy another motor just to get a trade for my goat. It was a nightmare. I should of looked around and shop, but I was impatient, and it got the best of me.

[Mr. Luos]

Can't say I am surprised.
SLP = Crap.

Good luck.

[SDMForever]

Wow, I never heard anything bad about them exept the price.

[Mr. Luos]

Customer service is horrible. I consider it non-existant.
Parts are sub-par compared to the newer stuff out.
Pricing = HIGH.

[SDMForever]

they are very pricey

[ls1bandit]

http://cgi.ebay.com/ebaymotors/NEW-2006-LS2-6-0L-V8-GTO-Engine-3-MILES-w-6spd-Trans_W0QQitemZ140028453140QQihZ004QQcategoryZ3361 5QQrdZ1QQcmdZViewItem

here is what id do.

[SDMForever]

http://cgi.ebay.com/ebaymotors/NEW-2006-LS2-6-0L-V8-GTO-Engine-3-MILES-w-6spd-Trans_W0QQitemZ140028453140QQihZ004QQcategoryZ3361 5QQrdZ1QQcmdZViewItem

here is what id do.

thats not a stroker. this is a stroker thread not a buy my overpriced ebay shit thread!

[mrr23]

whether you buy a LS2 (364) or have a 402 made like i'm guessing you did, it's still a larger motor than a LS1. and this isn't a bash on a member just because he'd buy a factory larger displacement motor vs building one thread either.

[ls1bandit]

thats not a stroker. this is a stroker thread not a buy my overpriced ebay shit thread!

yeah no shit sherlock, of course its not a stroker, and no i wouldnt pay 9k for it but i have seen them for around 7k on ebay but with more miles, around 18000 or so, so thats actually not a bad deal. With a few more mods that will easily hit 500 hp, which is about what you would end up paying for everything that goes along with putting a 408 stroker in.

[mrr23]

don't add an insult back to a member that has insulted you. just report and let the moderators handle it as i already have. keep on topic or the next move is lock down.

[Mr. Luos]

That EBay deal would be great if you needed everything there for a transplant.

But you can build a mild 402/408 for that price. :yup:

[SDMForever]

yeah no shit sherlock, of course its not a stroker, and no i wouldnt pay 9k for it but i have seen them for around 7k on ebay but with more miles, around 18000 or so, so thats actually not a bad deal. With a few more mods that will easily hit 500 hp, which is about what you would end up paying for everything that goes along with putting a 408 stroker in.



yea okay buddy, you are obviously too inept to talk to me.

[SDMForever]

That EBay deal would be great if you needed everything there for a transplant.

But you can build a mild 402/408 for that price. :yup:


You can do a 402 for under 4 grand! and then buy a new trans with manly parts and still come out cheaper

[ls1bandit]

yea okay buddy, you are obviously too inept to talk to me.

wow dude you sound like a real swell guy to talk to anyway, bout as much fun as a brick, and you can get a base 402 or 408 for AROUND 4k, but then itd cost you with the retrofit to your lt1. Here you get a fairly new, great engine and transmission, with a pretty easy swap. Me personally, id go the ls2 route, then while you have the engine out, swap in a bigger cam, put on some longtubes and with a good tune you will easily hit 500 hp. But then again a lot of guys get pride outta saying they have a 400 or 500 + hp lt1 engine.

[SDMForever]

wow dude you sound like a real swell guy to talk to anyway, bout as much fun as a brick, and you can get a base 402 or 408 for AROUND 4k, but then itd cost you with the retrofit to your lt1. Here you get a fairly new, great engine and transmission, with a pretty easy swap. Me personally, id go the ls2 route, then while you have the engine out, swap in a bigger cam, put on some longtubes and with a good tune you will easily hit 500 hp. But then again a lot of guys get pride outta saying they have a 400 or 500 + hp lt1 engine.
:stupid:

where we ever talking about a lT1?:jerkit: dont change the topic if you are trying to prove me wrong :nono:. I called you out and you are pissed and too Humiliated to say that you are wrong. :moon:

[mrr23]

ok, i guess you two just don't get it. drop the bickering between each other. move on. next derogatory comment from either of you gets a warning.

[SDMForever]

ooooooooooooh a warning

[mrr23]

ooooooooooooh a warning

warning applied and banned from thread.