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408 results part II

Old 11-11-2015, 10:53 AM
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403ci iron motor
AFR 225cc big bore heads. Untouched
Thunder racing v.2 stroker can
Meziere ewp
42.5# injectors
Vengeance FAST102-102
GZ vacuum pump
ARH 1⅞ headers
Kooks TD-CME
Textrilla Twin disk clutch
S60. 4.10s
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Old 12-06-2015, 08:10 AM
  #322  
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Impressive.
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Old 12-06-2015, 01:19 PM
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Originally Posted by quik01ss View Post


403ci iron motor
AFR 225cc big bore heads. Untouched
Thunder racing v.2 stroker can
Meziere ewp
42.5# injectors
Vengeance FAST102-102
GZ vacuum pump
ARH 1⅞ headers
Kooks TD-CME
Textrilla Twin disk clutch
S60. 4.10s

Didn't see this post till now even though I subscribed.... Great Numbers!!
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Old 04-14-2016, 03:26 PM
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408ci iron motor 9:1 compression (Boost in the near future)
LS3 heads titanium valves, competition valve job, comp springs/ titanium retainers
Comp custom grind cam
60# injectors
FAST102 intake/ 92 big mouth TB
Pacesetter 1⅞ headers
3 1/2" ORY Borla muffler
Centerforce Clutch
Moser 9" 3.89 gear

Car made 440hp/ 438tq
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Old 02-05-2017, 07:52 AM
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This thread has been great, except I have now confused myself on my original build plan. Here is what I have:

6.0L Iron block
K1 forged rotating assembly
Weisco -8cc pistons
ARP hardware
Comp Cams 54-472-11

Originally I was planning on running the Trick Flow GenX 255 heads with the above cam and FAST LSXR intake and 102mm TB.

I want the car to be an aggressive street/strip car that will probably get street driven and maybe some autox or road course.

Should I rethink my plan and run a smaller cathedral port head like the TFS 235s and a different cam?

Any input would be gratefully appreciated.

Thanks,
Zack
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Old 02-05-2017, 08:28 PM
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I can only say, I'm very happy with the 235 heads.
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Old 02-19-2017, 11:04 PM
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I am running TFS 235cc heads on my 408.
My build is on page 14 of this thread. It is the first and second post on page 14.
I'm super happy with them.
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Old 03-05-2017, 10:58 PM
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Originally Posted by unwantedstray View Post
This thread has been great, except I have now confused myself on my original build plan. Here is what I have:

6.0L Iron block
K1 forged rotating assembly
Weisco -8cc pistons
ARP hardware
Comp Cams 54-472-11

Originally I was planning on running the Trick Flow GenX 255 heads with the above cam and FAST LSXR intake and 102mm TB.

I want the car to be an aggressive street/strip car that will probably get street driven and maybe some autox or road course.

Should I rethink my plan and run a smaller cathedral port head like the TFS 235s and a different cam?

Any input would be gratefully appreciated.

Thanks,
Zack
I'm building my car now, and have the same K1/Wiseco 408 shortblock setup you have. I had Cam Motion spec a cam for it, and chose to run an LS6 intake and factory 317 heads with BTR .660 springs and stainless valves in order to spend money on suspension bits. I bring it up since you mentioned road course and street driving, which is what I'm doing with my swap. It may not be max airflow for a 408, but will still make plenty of power and torque until I get around to upgrading heads and intake.
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Old 06-04-2017, 10:55 PM
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405" LS2
11.5:1
BECK sheet metal intake
Mast/PI 235 heads
259/267 hyd roller
2" primary headers, 4" single dumped

578 hp 515 tq sae to the tires

Last edited by Sprayed 99; 11-11-2018 at 06:03 PM.
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Old 08-06-2017, 01:49 PM
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What wheels are on your Black 4th gen SS? SIZE/OFFSET/TIRES SIZE IF U KNOW PLEASE
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Old 01-17-2018, 01:34 AM
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Default ls2 402 stroker

516rwhp/ 493rwtq

LS2 BLOCK
4.005 BORE
4.0' STROKE
6.125 RODS
WIESCO PISTONS
CR 11.1:1
COMP 243/251 612 112LSA
243 HEADS PORT & POLISHED
F.A.S.T 102 PORTED VENGEANCE RACING
NW 102 TB
42lb INJECTORS
T56
MCLEOD RXT TWIN DISC
1-7/8"x 3" KOOKS
3" GMMG EXHAUST
QP 9" REAR END
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Old 05-01-2018, 03:06 PM
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Originally Posted by transamluva99 View Post
516rwhp/ 493rwtq

LS2 BLOCK
4.005 BORE
4.0' STROKE
6.125 RODS
WIESCO PISTONS
CR 11.1:1
COMP 243/251 612 112LSA
243 HEADS PORT & POLISHED
F.A.S.T 102 PORTED VENGEANCE RACING
NW 102 TB
42lb INJECTORS
T56
MCLEOD RXT TWIN DISC
1-7/8"x 3" KOOKS
3" GMMG EXHAUST
QP 9" REAR END
any track times out this combo ?
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Old 07-01-2018, 09:07 PM
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Finally got my sons car i, for a final tune .
LS2 block
.030 over
10.8:1 CR
BTR stg4
243s with a little work to smooth the out
fast 102 intake
Warr 102 TB
104mm maf
42# injectors
93 pump gas
492/471 on a dynojet
ambient temps were 100+
But according to a douche on facebook, our numbers are weak. His cam only LS3 makes over 550 .
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Old 07-01-2018, 09:49 PM
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Originally Posted by SAPPER View Post
But according to a douche on facebook, our numbers are weak. His cam only LS3 makes over 550 .
At the flywheel, maybe….
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Old 07-01-2018, 09:54 PM
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Those are damn good numbers for just lightly worked 243's
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Old 07-01-2018, 09:57 PM
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Originally Posted by HCI2000SS View Post
Those are damn good numbers for just lightly worked 243's
I don't think he has any reason to be disappointed.
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Old 07-01-2018, 10:06 PM
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Originally Posted by G Atsma View Post
I don't think he has any reason to be disappointed.
Exactly. And you're right about that 550 being at the flywheel on a cam only LS3. Most I've ever seen at the wheel is 500. Others I've seen are range from 470-490
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Old 07-02-2018, 09:28 PM
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All this is going on on fbody nation on fb.
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Old 10-24-2018, 06:10 PM
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Great thread. Im in process of planning a 408 stroker. Aiming for least 550whp before a 200 shot.
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