Coonass350

iTrader: (19)

Hey guys I'm doing a little premature planning for a 418ci LS3 build. Just want to see some setups you guys have. Would really rather see 416 and 418 but any LS3 based stroker is fine. Just list your setup(heads, cam, intake,exhaust,etc) and what it made on the dyno. I'm not sure what I want to do for heads. So far my choices are either PRC small bore LS7 or TEA ported LS3 heads.

Goal is 550 rwhp. Thanks in advance guys.

lil john

There are a lot of builds that you could look up ..
Your cam/head choice will seal the deal. Either head you listed could get what your wanting with the correct cam choice.

Coonass350

iTrader: (19)

Yeah from what Ive been reading it seems the LS3 heads require a more thought out cam selection. Any idea what you would go with? This will be in a C5Z(don't have yet but soon..hence the "premature planning" lol), and will be a weekend cruiser and street race car(roll AND dig racing).

JakeFusion

iTrader: (7)

The TEA/TFS 255 LS3 Head I'd do before I do ported LS3s.

The small bore LS7s will beat anything tho, so that's probably the best route.

But I still wouldn't discount cathedral port heads... PRC 247s or TFS 245s would all make the HP number with probably more avg torque.

And then there's the Chris Frank ported TFS cathedral port castings...

ElNino89

iTrader: (1)

On cam specs just hit up Ed Curtis or pat g if he's still around to custom grind one for you...my guess is it's going to be around the 240/250 size and top it off with ported and port matched FAST 102/NW 102 and you hit it.

Currently did a LQ9 408 with Callie's Shaft/Rod, Wiseco pistons, 238/252 custom cam, ported LS3 head, ported fast 102 and port matched to heads with a nw102 and powerbond 20%UDP compression at 12:1.1 and made 543rwhp/506rtq

So it's possible with good parts.

Coonass350

iTrader: (19)

ElNino89, thanks for posting man.. sounds real strong!

ElNino89

iTrader: (1)

Oh it is, and got those numbers through a 9' IRS and 4l80e w/3800 stall.

It flys lol

Coonass350

iTrader: (19)

Lol, I bet it flys.

I forgot to mention in my original post the reason for thinking about the small bore LS7's. Was told that they would be a good or better option because of being able to run the LS7 intakes. The LS7 (stock or FAST) are both better for the LS7 compared to the LS3. So that was my reasoning for throwing them into the mix. Just looking for ideas and combos people have ran. This build is still a good ways off so just trying to gather as much info as possible!

BOLO

iTrader: (40)

I'm in the process of building a 416 LS3. Here's a list of the combo:
Speed Inc 416 LS3 shortblock 13.5 CR:
New GM LS3 aluminum block
Callies 4.000" crankshaft
Callies 6.125" ultra rods
Wiseco +5cc dome pistons
BTR Top End Combo:
GM LS3 cnc ported(BTR program) heads w/BTR Platinum valve springs
Port matched Edelbrock's new Supervic LS3 4500 Efi single plane intake
Accufab 4500 TB
BTR custom HR cam

Coonass350

iTrader: (19)

Look forward to hearing results man. Any idea when it'll be finished?

5.0 LsX

iTrader: (7)

TSP 418
TFS 245's untouched
off the shelf comp cam- 247/255 .624 .624 113+3
11:1 compression, 91 octane
fast 102/102 untouched
built 4l80e, vig 3200 lockup
8.8" 3:73 rear
dynatek 1 7/8", 3" collector swap headers
true dual 3" exhaust, magnaflow straight through mufflers

500rwhp/480rwtrq on break in tune at 5500 rpm, ran out of fuel pump. need to go back for retune, but don't expect too much more power... probably cam swap and restall down the road

Rise of the Phoenix

iTrader: (27)

That sounds damn nice. I didn't realize Brian did CNC'd LS3 heads.

JakeFusion

iTrader: (7)

I will throw this out there because I had some new information pass my way this morning... and this is my next build, so copy as you see fit. Goal is 600rwhp through an A4...

LME 418 Shortblock (12:1 CR)
Frankenstein TFS235s setup for Solid Roller (flow 350cfm@.700)
Frankenstein ported FAST102
Cam Motion Low Lash Solid Roller Cam (specs TBD)
Jesel Adj Roller Rockers
Morel Link-Bar Sollid Roller Lifters
Manton 3/8" Pushrods
Kooks 1-7/8" Headers + 3" True Duals

Rise of the Phoenix

iTrader: (27)

You just can't leave well enough alone can you? I'm sure with those parts, you'll get 600 rwhp no problem. I'd give my left or right ******** (not both) for a set of Frankenstein heads.

JakeFusion

iTrader: (7)

No, I can't. lol

Been looking at a 98 Trans Am to turn into more of a race car than the 02. Part of me really enjoys the build process. So I wouldn't mind starting another build while I enjoy this one.

Coonass350

iTrader: (19)

Lol, has this setup been done already? Or what you are putting together? If it's been done what did it put down? Also if you don't mind Jake pm the price of those TFS 235s from Chris if you know. Would appreciate it.

Briou

iTrader: (1)

A little larger than what you are looking for, but it did start as an LS3 so...

454ci 12.02:1 Compression N/A Street/Strip build
ERL M7 454 Short block
Frankenstein LS7 Heads
Martin Smallwood Spec'd cam
Morel Link Bar lifters
Manton Pushrods
Stock LS7 Rockers with Trunnion Upgrade
ARP head studs
Cometic Head gasket
Kinsler Intake

There is a ton of in my thread...
https://ls1tech.com/forums/generatio...454-build.html

Coonass350

iTrader: (19)

Thanks for posting your build Briou, that looks amazing. I look forward to seeing what she puts out!

1989GTA

Here is my LS3 427 build. It is set up primarily for the street with an occaisonal pass down the strip. Plan to shift around 6500-6600 rpm.

LS3 block.
Callie 4.100 Crankshaft.
Callie H-beam 6.125 rods.
JE Pistons and rings, 4.070" bore and -4cc dish.
TSP CNC LS3 heads.
11.4:1 compression ratio. Running on 91 octane gasoline.
EPS camshaft 238/244 2 .050" and 288/294 @ .006" with .629"/.629" lift, 114+3.
1 3/4" x 1 7/8" stepped headers with 3" dual exhaust and X-pipe.
4" custom cold air intake.

I am think around 500/500 through a 6l80 and a Yank SS3200 converter.

BOLO

iTrader: (40)

The short block is done. I'm awaiting for the whole top end combo from Brian Tooley(BTR). This is my first LS swap into my 94 camaro. Still debating on which engine management I should go with. Stock ECU or aftermarket.