Owners of 416 stroked LS3's... - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Good2go · 08-15-2011, 04:44 PM

I'm curious as to what it costs, what the gains were, etc... I am fixing to do a cam, LT's and CAI, with forced induction added down the road. One of the cams I might get needs reliefs for valve clearance, so I might go the stroker/forged route while I'm at it. Thanks in advance!

mike25 · 08-15-2011, 04:47 PM

i thought it was 418's for stroked ls3's?

Good2go · 08-15-2011, 05:05 PM

I've seen both, I think the 418 has been bored out a little(?) as well as stroked.

kpwalls06 · 08-15-2011, 06:05 PM

The 418 is not actually bored, it's honed. But both are displacements for the stroked LS3. I have a 418 motor built by Texas Speed, and installed by East Texas Muscle Cars. A lot like the OP, I had exhaust and CAI, and planned on going FI in the future, so I decided to start with the all-forged bottom end first. The gains were awesome, but I went with a lower compression ratio to make room for more boost. This brought my rwhp down quite a bit for now, but I'm still extremely happy with the setup.

jsharp · 08-15-2011, 07:59 PM

I wantva 418!

nitto85 · 08-15-2011, 09:23 PM

Quote:

Originally Posted by jsharp

I wantva 418!

We should start a club lol.

Too expensive for me though, I think I'll be happy with a LS3 conversion and a few other things.

A.R. Headers · 08-16-2011, 08:27 AM

Guys, My son Louie recently built a 416 LS3 at the S.A.M.'s in Houston. He just finished the 18 month course. The engine will run an F1R. Normally Aspirated the engine produced 612 HP with 9:1 CR. Bottom end is all forged (thanks MAST Motorsports) with ARP studs top and bottom. Heads were ported by him and the spring pockets were enlarged for solid roller springs. The car should be running on the dyno within the next 2 weeks with the Procharger. Should be interesting.

Nick

SmittyTuck · 08-16-2011, 08:51 AM

Quote:

Originally Posted by A.R. Headers

Guys, My son Louie recently built a 416 LS3 at the S.A.M.'s in Houston. He just finished the 18 month course. The engine will run an F1R. Normally Aspirated the engine produced 612 HP with 9:1 CR. Bottom end is all forged (thanks MAST Motorsports) with ARP studs top and bottom. Heads were ported by him and the spring pockets were enlarged for solid roller springs. The car should be running on the dyno within the next 2 weeks with the Procharger. Should be interesting.

Nick

honeybucket99 · 08-16-2011, 09:48 AM

The engine upgrade was only $20.00, but that damn alternator ran me $7,180.00.

Jason 98 TA · 08-16-2011, 10:53 AM

We do full cnc machined & properly blueprinted stroker LS3 / L99 shortblocks. The difference between a Texas Speed short-block & just about any other LS companies short-block is we use a cnc Block machine that costs by itself as much as other shops enitre machine collection! The advantages to using a cnc block machine is we can check & correct manufacturing issues in the blocks we machine. Virtually no other LS machine shop in the country can check & address incorrect block machining from GM.

Checkout some of our posts about the Texas Speed Machine Shop. I think you'll find we only use top of the line equipment to make sure we build the best short-block in the country!

rdblan2 · 08-16-2011, 10:56 AM

Quote:

Originally Posted by honeybucket99

The engine upgrade was only $20.00, but that damn alternator ran me $7,180.00.

AntzV · 08-16-2011, 11:04 AM

Im taking my car in for a 418 stroked ysi build later this week

pyr0b0y · 08-16-2011, 11:12 AM

got a 416 stroker in the shop last week; built by mast motors; attaching a TTI setup to the car in 2 weeks.

Darth_Emma · 08-16-2011, 01:51 PM

Is there an advantage to going this way as opposed to going with a 427 LSX?

I'm currently trying to decide if I want to forge the stock motor, or get a new block and put my maggie on that.

08-15-2011, 04:44 PM	#1
Good2go Team Chevrolet Drives: 2007 Z06 and 2011 Camaro 2SS Join Date: Jan 2011 Location: San Antonio Posts: 441 View My Garage	Owners of 416 stroked LS3's... I'm curious as to what it costs, what the gains were, etc... I am fixing to do a cam, LT's and CAI, with forced induction added down the road. One of the cams I might get needs reliefs for valve clearance, so I might go the stroker/forged route while I'm at it. Thanks in advance!

08-15-2011, 04:47 PM	#2
mike25 Drives: 2012 Camaro 2SS/RS Join Date: Jul 2009 Location: Dubba V Posts: 2,869	i thought it was 418's for stroked ls3's? __________________ 2LT/RS M6 CGM VIN#53104 SOLD 2012 Black 2SS/RS w/ Hurst- Mods: Corsa catback, SSE, Vararam

08-15-2011, 07:59 PM	#5
jsharp NOW CAMMED & SUPERCHARGED Drives: 2010 Camaro 2SS/RS Black w/ IOM Join Date: Oct 2008 Location: Ar Posts: 2,336	I wantva 418! __________________ Livernois Motorsports: Maggie 2300 7psi, Livernois 2C cam/L99 to LS3 Conversion, Ported TB, Rotofab w/adm race scoop, adm trans cooler,Kooks headers no cats, Kooks 3" exhaust. METCO breather. Precision 2400 Vigilante TC. Eibach Lowering Springs & Swaybars. BMR Trailing arms, BMR Rear Cradle Bushings, BMR Toe Rods, BMR Differential bushings. Vossen CV3 20's w/ 305 Mickey Thompson @25psi. Zl1 front bumper. OE Zl1 Hood and matte black insert. 556RWHP/500RWTQ L99

08-16-2011, 08:27 AM	#7
A.R. Headers Drives: Pontiac G8 GT Join Date: May 2009 Location: new york Posts: 263	Guys, My son Louie recently built a 416 LS3 at the S.A.M.'s in Houston. He just finished the 18 month course. The engine will run an F1R. Normally Aspirated the engine produced 612 HP with 9:1 CR. Bottom end is all forged (thanks MAST Motorsports) with ARP studs top and bottom. Heads were ported by him and the spring pockets were enlarged for solid roller springs. The car should be running on the dyno within the next 2 weeks with the Procharger. Should be interesting. Nick __________________ www.AmericanRacingHeaders.com 100% USA MADE

08-16-2011, 09:48 AM	#9
honeybucket99 Drives: 2SS/RS CGM CAMARO BEAST Join Date: Jul 2009 Location: carrollton, ga Posts: 425	The engine upgrade was only $20.00, but that damn alternator ran me $7,180.00. __________________ 2010 CGM 2SS/RS; 418 stroker; JE Forged Pistons (offset wrist pin); Forged Crank; upgraded valvetrain; Custom Comp Cams Cam; Kenne Bell 2.8; ID 1000s; Aeromotive Fuel pump with return; ARH Long Tubes; Spec heavy duty clutch; 3" Magnaflow Cat Back; Nick Williams 102 mm Throttle Body; Tune fixed by Dave Steck; 815 HP and 14 mpg Upcoming-- Disintegrated drivetrain; Divorce if/when my wife catches on to my addiction

08-15-2011, 05:05 PM	#3
Good2go Team Chevrolet Drives: 2007 Z06 and 2011 Camaro 2SS Join Date: Jan 2011 Location: San Antonio Posts: 441 View My Garage	I've seen both, I think the 418 has been bored out a little(?) as well as stroked.

08-15-2011, 06:05 PM	#4
kpwalls06 Cory Drives: 2010 Camaro 2SS/RS M6; Join Date: Nov 2009 Location: Carrollton, Tx Posts: 299 View My Garage	The 418 is not actually bored, it's honed. But both are displacements for the stroked LS3. I have a 418 motor built by Texas Speed, and installed by East Texas Muscle Cars. A lot like the OP, I had exhaust and CAI, and planned on going FI in the future, so I decided to start with the all-forged bottom end first. The gains were awesome, but I went with a lower compression ratio to make room for more boost. This brought my rwhp down quite a bit for now, but I'm still extremely happy with the setup.

08-16-2011, 10:53 AM	#10
Jason 98 TA Drives: Camaro Join Date: Apr 2009 Location: Texas Posts: 1,669	We do full cnc machined & properly blueprinted stroker LS3 / L99 shortblocks. The difference between a Texas Speed short-block & just about any other LS companies short-block is we use a cnc Block machine that costs by itself as much as other shops enitre machine collection! The advantages to using a cnc block machine is we can check & correct manufacturing issues in the blocks we machine. Virtually no other LS machine shop in the country can check & address incorrect block machining from GM. Checkout some of our posts about the Texas Speed Machine Shop. I think you'll find we only use top of the line equipment to make sure we build the best short-block in the country!

08-16-2011, 11:04 AM	#12
AntzV Drives: blacked out 2010 Camaro Join Date: May 2009 Location: Denver Colorado Posts: 626	Im taking my car in for a 418 stroked ysi build later this week

08-16-2011, 11:12 AM	#13
pyr0b0y need....more....hp Drives: The Neighbor Hater Join Date: Dec 2010 Location: San Mateo, CA Posts: 4,091	got a 416 stroker in the shop last week; built by mast motors; attaching a TTI setup to the car in 2 weeks. __________________ BUILD THREAD BUILT AND MAINTAINED BY BLU808 Mast Motorsports Built LS3 Stroker 418, IPS GT35R Twin Turbos, Exedy GTO4XD Twin Disc Clutch, Aeromotive A1000 Eliminator Stealth Fuel Pump, AEM Meth Injection, DSS 1400hp Axels, BC Coilovers, Pfadt & BMR Suspension, Hawk HPS Pads, Drilled/Slotted Rotors, Hurst Shifter, Custom Roll Cage by Blu808, T3 Ports, 22" Custom Concave Mesh Rims

08-16-2011, 01:51 PM	#14
Darth_Emma Psssssssssshhhhhhhhhhhhh! Drives: under contruction Join Date: Nov 2009 Location: Marysville, Ohio Posts: 12,996 View My Garage	Is there an advantage to going this way as opposed to going with a 427 LSX? I'm currently trying to decide if I want to forge the stock motor, or get a new block and put my maggie on that.

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