Engine Mods.

[benjy]

What are the most cost effective modifications I could do to my engine to gain more hp/torque? It is a 5.3L, in a 2001 Yukon XL.

 

[boostaholic]

LS6 cam, intake, exhaust, tune.

 

[benjy]

Is the money spent on a new cam worth the results it will yield.

 

[benjy]

Did you mean have someone, a professional, tune the engine for performance?

 

[EZStreet]

Justin @ Black Bear performance comes highly recommended for a custom PCM tune. I'm getting mine next month based on advice from alot of the guys here. His prices are very reasonable

 

[SapperRyash]

Justin @ Black Bear performance comes highly recommended for a custom PCM tune. I'm getting mine next month based on advice from alot of the guys here. His prices are very reasonable

+1

im planning on getting one from him as well. after i install my AEM Brute Force CAI on friday and then im going to do some painting but the TUNE from Justin is def coming soon!

 

[clay2022]

here is a list of mod's for the 5.3L i found on another site. or you could spend $4500 on a Whipple S/C and get a 50% increase in H/P and torque.

Air Management
UPD Air intake kit $239-$269
AIRAID Air Intake Kit $262
GRANATELLI Enclosed Cold Air Intake $232
K&N Generation II Air Intake Kit $255
VOLANT Premium Cool Air System $296.00
POWERAID Throttle Body Spacer $100
JET Powr-Flo Throttle Body Spacer $98
Programmers
HYPERTECH Power Programmer III $339
DiabloSport Predator programmer $419
SUPERCHIPS GM Max Micro Tuner $378
Cooling
FLEX-A-LITE Dual 15-inch Electric Puller Fan, 5500 CFM $443
PERMA-COOL Cool Pack II 13inch Dual Electric Fan Unit $578
HYPERTECH 160° Thermostat $48
HYPERTECH 180° Thermostat $48
Engine
AUTO SPECIALTIES Two Pulley Set for GM Modular Engines $237
ASP Underdrive Pulleys $249
SLP Camshaft Kit (c+s+r+l) $795
Exhaust
AEP-JBA Heavy 14 Gauge Nickel-Chrome Plated Steel Header $476
AEP-JBA Heavy 14 Gauge Silver Ceramic Coated Steel Header $630
EDELBROCK Nickel/Chromium Plated Shorty Header $294
BORLA Stainless Steel Headers $626
GIBSON Heavy 14 Gauge Nickel-Chrome Plated Steel Header $399
GIBSON Ceramic Coated Shorty Header $307
CORSA Catback exhaust system $680
Ignition
AEP-JBA 8mm Custom Fit Power Cables $52
NOLOGY HotWire Spark Plug Wires $266
TAYLOR 8mm Spiro Pro Ignition Wire Set $46
TAYLOR Thundervolt 50 Ultimate Performance Racing Wires (LS1 Vortec Engines Only) $77
MAGNECOR 8.5mm Spark Plug Wire Set $80
Drivetrain
YANK Truck Thruster 3000 $739
TRANSGO 4L60e shift kit $110
B&M 24,000 GVW SuperCooler $65
Superior Overdrive Super Servo 4L60E $69
Superior Super Servo 4L60E $79.00
Blue Plate Deluxe Performance Rebuild Kit 4L60E $379.95