Stroker Kits ?
Originally Posted by ssam98
lunati now makes a 395 stroke for the ls1 and ls6 
Originally Posted by j99fbody
I paid $2300 for an eagle rotating assembly and $120 to hone block.
also does the shop know the LSX platform? things are different than the old school SBC stuff, not saying a good local shop can't do the machine work, just asking.
Originally Posted by SVT THIS
I believe a PROPERLY built 408 will run you close to 10k, a 402 may be slightly less. If you can get the rotating assembly for 2300 and then just have the block honed you're set. Esp. if you already have a good set of heads, a cam and a good intake. I'd rather spend around 3k for a stroker than 10k for a 408.
Originally Posted by SVT THIS
Are those pistons you mentioned UnZFeat'd forged? Do you know how much it would cost to bump them up to forged??
So to build the stroker you just need the kit for 4k? I'll have good heads and a 90/90 setup and I'll probably use the Trex cam for a while. What size heads would be good on a 383? Would the ET215s be to small? Would the ET 245s be to large??
So to build the stroker you just need the kit for 4k? I'll have good heads and a 90/90 setup and I'll probably use the Trex cam for a while. What size heads would be good on a 383? Would the ET215s be to small? Would the ET 245s be to large??
Also 10K is way to much for a 402/408 that is race car motor or show car or just got ripped of motor for that much. for 10K you'd get a fully assembled alluminum long block, you can buy a alluminum short block for under 4k. Check with our sponsors, Ill be going with TSP
just wondering about how much would it cost to put this motor in and build it up.... and how much rwhp could i get??...for a DD would this 402 a 383 or just a cammed ls1 be best??
everyone is saying 10k is too much, but i dont think its unrealistic. you can get a 408 for 3800, that doesnt include cam, a 402 for around 4200, so you get that add a cam, timing set, lifters, everything adds up.
a nice set of etp 245's will run 3k, and valve train, everything all together, machine ork etc, youd easily be able to push 8k, so 10k from a really high priced hop wouldnt be out of the realm of reality.
hell a LS7 is 12k
a nice set of etp 245's will run 3k, and valve train, everything all together, machine ork etc, youd easily be able to push 8k, so 10k from a really high priced hop wouldnt be out of the realm of reality.
hell a LS7 is 12k
Originally Posted by who281
just wondering about how much would it cost to put this motor in and build it up.... and how much rwhp could i get??...for a DD would this 402 a 383 or just a cammed ls1 be best??
As far as price goes for the 402 or the 383 it all depends, I think for a budget build you could probably get it done for around 5500, but dont hold me to that. If you arent mechanically inclined and say you dont have any parts to transfer over to the new motor (water pumps, headers, intake) its gonna run you up quite a bt. also you have to account in labor if you arent going to do it. Rwhp and Rwtq...who knows the sky is the limit. just get a cam and be done with it
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Well I'm looking at building my 346 till it goes to hell then I'll decide on a 383, 402 or 408. With a 402 or 408 shortblock, could I transfer all my LS1 accessories to them? I will most likely have ET 225 heads along with my TRex cam-would this combo be a good setup on a larger cube motor? If so, I would just assume swap it over. After that, what all is left to get?
What are the differences between the 402 and 408? I know ones an iron block and one's aluminum, but other than that, whats the benefit of one over the other?
What are the differences between the 402 and 408? I know ones an iron block and one's aluminum, but other than that, whats the benefit of one over the other?
Originally Posted by Demon SS
true, but you use a 4.125" stroke, the long stroke limits the rpm range. even in our 427's we use a 4" stroke. I prefer an engine to be square as possible(bore and stroke the same) and much prefer the bore to be more than the stroke when not.
a 402 is a standard bore 6.0L block with a 4.00 inch stroke. 408 is a .030 over 6.0L with the four inch crank. Aluminium or iron make no difference in displacement.
TRex cam will be a little easier to live with with more cubic inches, as would large volume heads. Both of them are down on torque with just 346 cubes, but the longer stroke helps to counter that. If your engine is street bound, 225 heads should flow enough for a 408. Leave the 230 and larger heads for 427 and larger engines.
A larger stroke increases piston speed and acceleration at the same engine speed. This introduces more stress on the rods, rod bolts and crank at the same engine speed. A longer stroke also tends to move the power curve a bit lower for two reasons:
1) the longer arm gives more leverage on each power stroke, generating more
torque for the same event
2) all other things being equal, more stroke = more displacement = more air required. The same intake, cam, heads and exhaust may not support the increased demand.
The TRex may work ok with stock LS1 heads on a 346, but it will make more power with a better flowing head, and it will require a better flowing head to not lose power in a 408 cubic inch engine.
TRex cam will be a little easier to live with with more cubic inches, as would large volume heads. Both of them are down on torque with just 346 cubes, but the longer stroke helps to counter that. If your engine is street bound, 225 heads should flow enough for a 408. Leave the 230 and larger heads for 427 and larger engines.
A larger stroke increases piston speed and acceleration at the same engine speed. This introduces more stress on the rods, rod bolts and crank at the same engine speed. A longer stroke also tends to move the power curve a bit lower for two reasons:
1) the longer arm gives more leverage on each power stroke, generating more
torque for the same event
2) all other things being equal, more stroke = more displacement = more air required. The same intake, cam, heads and exhaust may not support the increased demand.
The TRex may work ok with stock LS1 heads on a 346, but it will make more power with a better flowing head, and it will require a better flowing head to not lose power in a 408 cubic inch engine.
How many all stroke 395s have you read about that tore up due to high rpm or anything for that matter? I run the crap out of my all stroke 395 and on the street it is very fast. As a matter of fact I have been trying to break it so I can explain to my wife that I have to build another motor, so I can build a 441 or something. I have run it to 7k many times and it just keeps on ticking.
Texas Speed built it for me.
Texas Speed built it for me.
Well I plan on running ET 215 or 225 heads with the TRex on my 346. I think I may go with the 225's so when the 346 does take a dump I can just swap everything over.
Thanks for the info hammertime-you know your ****!
Thanks for the info hammertime-you know your ****!
from what i gather, the 402 is all stroke??? and the 408 is bored with a different crank? also, a trex is a big high RPM cam for a stock LS1, so with a 402 or a 408 it would be more streetable? would i still have to rev it as high to get the power from it? what kind of powerband would i be looking at with a Trex and a 408 with lets say, ET 225s?
Who needs heads! Check out this 408 with UNTOUCHED STOCK LS1 HEADS!
Originally Posted by Brandon Boomhauer
I guess being the moderator of this section I should post up my numbers.
A big thanks goes out to Daniel/Scott/Joe of SimplequickRacing for making this work for me. The car drives like a baby cam car and pulls like hell through all gears. I can put around at 1300rpm in 6th no problem.
408 Built by Erik @ HPE
8cc dish Weisco's
Stock 241 heads
10.96:1 Comp.
244/248 612/615 on 115 XE-R Lobe
Though an M6
LS6 Intake
Home Ported TB
Pacesetter Headers
True Duals
SD Tuning by SimplequickRacing
Put 468.8/460.8 down with somewhere near 300 on the clock.
The graph I have a picture of currently is a few shy of that.
A big thanks goes out to Daniel/Scott/Joe of SimplequickRacing for making this work for me. The car drives like a baby cam car and pulls like hell through all gears. I can put around at 1300rpm in 6th no problem.
408 Built by Erik @ HPE
8cc dish Weisco's
Stock 241 heads
10.96:1 Comp.
244/248 612/615 on 115 XE-R Lobe
Though an M6
LS6 Intake
Home Ported TB
Pacesetter Headers
True Duals
SD Tuning by SimplequickRacing
Put 468.8/460.8 down with somewhere near 300 on the clock.
The graph I have a picture of currently is a few shy of that.
FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
Originally Posted by camarokid94
so what venders have a 383 kit thats not 4k ?
Okay guys, i would love to stroke it to a 382/383, depending on who answers, but i am stock internals except for hardened pushrods, so will it handle it? Coudl i sneak a stroker kit in wih stock internals? If so, woud a cam and springs be okay later on?