ManMuchwano93z28

Hey guys. So I am building a 408 with a fully forged Callie's bottom end and I am kinda confused as for what's a good set up. I am trying to make 500-550 na wheel ponies. And then throw a 200-250 shot Threw a stalled 4l80E my questions are. What pistons should I run also what's a safe c/r for a lq4 408 stroker. Also was thinking about a tsp giant cam. And trick flow 255 gen x heads. Money really isn't problem I been saving for a long time. I wanna keep it on 93 pump gas that can be driven on the street. To the drag strip and back home. And also for cruise nights. And it's going in a f body camaro let me know what you guys think. Thanks

Tuskyz28

I personally don't like those TFS 255 heads and I'll tell you why too... I have seen them on a couple of motors and they just font perform for what you pay for them. In my book of you wanted to run a rectangular port head you'll be better off send a pair of stock LS3 heads off to Chris Frank and come out cheaper. If I had a 408 build knowing what I know now I would do a top of the the line cathedral head setup..... they not dyno queen setups but in the real world they kick ***!! Why because cathedral headed motors tend to have a better torque curve over a rectangular headed setup where a rectangular headed motor is just peaky.
If put together right you'll see 530 plus at the tire.....

NAVYBLUE210

My .02 for your goals would be:
Heads MMS 235,AFR230s (MAMOFIED), OR TFS235s W/N2O Exhaust Port.
Any of those heads capable off 550 RWHP w/ ATTENTION TO DETAILS!
TFS 255s to big for 408 dual purpose IMO.
Cam Low Lash Solid Roller from CAMMOTION worth 20-25 compared
To HR of similar specs adjusted for lash with an additional 1000+ RPM capability Have Kip spec ( something like 240*/246* ( depending on head
Selection add 6-10* exhaust for N2O) .660"/.640" LSA 114* +3*)
HR 236*/242* .620"/.610" LSA 114* +3*(same add for N2O)
Texas Giant to Big and outdated for your goals IMO.
Compression 11.0:1-11.5:1
Intake FAST 102 W/Mid Length Runners or MSD AIRFORCE
Both of which are probably at least 2 Months Wait.
ARH 1 7/8 LTs, True Dual Exhaust,
Can easily lose 30+ RWHP W/ wrong single exhaust!
That's a start.

(SS)

iTrader: (1)

Allpro heads!

Tuskyz28

My vote goes to Mamo especially on a REAL street car....

NAVYBLUE210

OOPS
MSD INTAKE may not be applicable to F Body.

LS3 ports and Valves especially, are too Big for bores under 4.060" IMO
like Tusky says Cathedral much better choice for street/strip
Car with your bore size.

ManMuchwano93z28

Ok thanks for the info. If you had to pick one of those heads which one would you get. I'm new to this ls stuff and it's my first time building one. So I don't know what would be best for my setup. So if you could pick a head. And cam what would it be. Also on Pistons. I was thinking weisco I heard good things n I researched around a little and seen people are using there -3cc is that good for my goals. Or is there something better out there that's not out dated like my cam selection I wanted lol And as far for intake was going with a 102 and of course long tubes. The exhaust I was hoping I can use my old Borla off my lt1 car but I gotta see if it will work if not Ill do a 3inch dual setup

ManMuchwano93z28

Okay thanks for the anwsers. I have a few questions. What heads would you get if it was your motor and also what Pistons and cam. And are the afr 230s cathedral And who's mamo..???

NAVYBLUE210

My first choice if I could wait (1-2 months? Maybe Tony could chime in)
MMS 235s
2nd choice, or first choice Immediately MAMOFIED AFR 230s
Made 663 Crank & 580 RWHP W// 243*/247* .624"/.624" LSA 114* +2*
Hydraulic Roller Cam in a 417" W/ 11.4:1 Comp ARH 1 7/8 LTs &
ALL! The Details!
In Jeremy's Firebird with impeccable street manners,
Maybe Jeremy can chime in.
I would also have Kip @ CAMMOTION Spec a Low Lash Solid Roller
They are so much more street friendly now and worth another
~20 HP and 1000-1500 RPM, with much greater Valvetrain Stability!
Definitely get Mid Length Runners for FAST 102 if you go LLSR

ManMuchwano93z28

Okay call me a dork but what is mms mean and also what is mamofied. And wow that's some power. Do u think I would see similar numbers in my 408..??

NAVYBLUE210

Who is Tony Mamo?
Short answer:
Former Chief Cylinder Head Designer AIR FLOW RESEARCH (AFR)
Designed 1st Aftermarket LS CYLINDER HEAD
AFR 205 then AFR 225(both CARB approved) then 210,215,230,245,&255
Builder of BADASS ENGINES!
Entrepreneur of the Newly Launched MAMO MOTORSPORTS!

ManMuchwano93z28

Ok thanks for the info. Really appreciate it... Sorry guys I told you I was new to the ls scene

Tuskyz28

I hope Tony chimes in.... very cool guy to deal with.

ManMuchwano93z28

Yeah he's a very cool guy. I called him today and he's hooking me up with he's 235 heads custom camshaft ported fast intake pistions heads gaskets oil pump pretty much all the major stuff. Thanks guys for helping. Can't wait to get my hands on these parts and start building it back up.

NAVYBLUE210

Awesome!
You made a great decision, you will be very happy.
Keep us updated, looking forward to your results.

ManMuchwano93z28

I will post a new thread when it's done. Idk when it will exactly because I am currently in the middle of getting married so after that should be done n complete later this summer. Thanks guys I'm super pumped about this. Can't wait. Also anything special about swapping a lt to a 408 I need to know or it's pretty straight forward

NAVYBLUE210

Congrats on your coming Nuptuals!
Spend as much as you can before! LOL
It gets tougher for most of us after.

Check out the Hybrid/Conversion Section, Lots of Valuable and
Time saving info there!

Last C5

Just finished my 408

CNC Motorsports all forged 408
Eagle Crankshaft and rods
Diamond 11540 forged flat top pistons
Compression 11.7:1
AFR 230 72cc heads milled to 67cc
Morel Lifters
Jessel rockers
Smith Brothers restricted flow push rods .040 oil
Drilled lifter trays
Brian Tooley Stage IV Cam 235/242 .620/.593 -3& on 111 separation
Fast 102 with a Nick Williams 102 Throttle body
1 3/4 Dynamax Headers, X pipe, & Borlas

The car makes 525 rwhp.

Make sure you use the restricted push rods and drill the lifter trays.

Tuskyz28

Some good power!! Is your intake/heads right out the box or have they been ported ?

Last C5

Intake is out of the box and the heads are lightly ported.