Darton Sleeves
(800) 713-2786 * www.dartonsleeves.com
What Is It? Phosphate-Coated Modular Integrated-Deck (MID) Wet Sleeve
Why You Need It: Increase the displacement of your motor to 400 ci or your stroked motor to 472 ci. The wet-sleeve system allows multiple reuse of the block by installing new wet sleeves as needed if you detonate a piston or damage your bore. A phosphate coating deters sleeve rust, and the wet-sleeve design keeps the engine block running cool. There is also a step-by-step setup guide online, including great instructions on how to deck your block. This wet-sleeve kit accommodates a 4.125-4.200-inch bore and strokes from 3.622 to 4.250.Applications: '98-'02 and '04 LS1, '05-'06 LS2
MSRP: $1,475 per kit
Painless Performance
(817) 244-6212 * www.painlessperformance.com
What Is It? PERFECT PowerCom System 1 and 2 Computer Controller and Harness
Why You Need It: PowerCom System I and II are designed for Pontiac owners who want to put an LS1 motor into an '85-or-earlier Pontiac. The PowerCom system takes over the computer functions of the LS1 and allows the motor to work in your Firebird, GTO, or Grand Prix. PowerCom System II has all the features of the PowerCom System I and adds an electronic transmission controller for Pontiac owners who also want to put a 4L60E computer-controlled transmission in their '85-or-earlier Pontiac. The PowerCom system controls the electronic-stepper motor, IAC, narrow-band O2 sensor, and is completely reprogrammable by the end user for engine modifications.
Applications: LS1MSRP: $1,500-1,700
Racing Head Service
(901) 259-1134 * www.racingheadservice.com
(A division of Comp Performance Group)What Is It? RHS Pro Elite GM Gen-III Aluminum Cylinder Heads
Why You Need It: These 62cc heads feature a thicker deck surface, raised valve-cover rails, and accept stock rocker arms. According to RHS, the fully CNC-machined and assembled cylinder heads combine outstanding flow characteristics with superb standard features that overcome all of the shortcomings of the stock GEN-III head.
Applications: '98-'02 and '04 LS1, '05-'06 LS2
MSRP: $1,798-$4,148 per pair
Manley Performance Products
(732) 905-3366 *
www.manleyperformance.com
What Is It?
Skirt-Coated Platinum Series PistonsWhy You Need It: Set your engine assembly's compression to 10:1 with these flat-top pistons. They feature a skirt coating, which allows tighter clearances, reduced friction, and reduced noise.
Applications: '98-'02 and '04 LS1
MSRP: $608
TCI Auto
(662) 224-8972 * www.tciauto.com
(A Division Of Comp Performance Group)What Is It? StreetFighter 10-Inch LS1-to-GM Turbo 350/Turbo 400 Torque Converter
Why You Need It: LS1 and LS2 racers have often complained of overpowering the 4L60E computer-controlled GM transmission in their Firebirds and GTOs. This product follows a trend of allowing racers to go back to their roots and connect a Turbo 400 or Turbo 350 directly to the bolt pattern and pilot of the LS1 and LS2. The benefits are increased strength, no computer interaction, and greatly reduced transmission repair and replacement costs. Stall speeds of 3,000-3,500 rpm are offered, and custom stall-speed units are built for the customer by the manufacturer.
Applications: '98-'02 and '04 LS1, '05-'06 LS2
MSRP: $569
JE Pistons/Carrillo
(714) 898-9763 * www.jepistons.comWhat Is It?
SRP Pistons
Why You Need It: These new-design pistons feature a high-silicon, 4032-aluminum, F.S.R. forging and are up to 100 grams lighter than competitive offerings. They are designed for naturally-aspirated or moderately-boosted street-and-strip applications. The piston offers a 29cc inverted dome and is manufactured using a dedicated forging specific to the LS family of GM engines. If you are a sportsman or street-based performance enthusiast, you'll find this piston kit offers a low 9:1 compression ratio and is a great choice for stroker motors with a 4.00 stroke.
Applications: '98-'02 and '04 LS1, '05-'06 LS2
MSRP: $555
Painless Performance
(817) 244-6212 * www.painlessperformance.com
What Is It? Fan Relay (w/thermostat)
Why You Need It: This product is designed for owners needing inexpensive protection for their electric fan. It provides constant voltage, protects from voltage and amperage spikes, and keeps your fan from back-feeding through the system. The kit comes complete with GM Gen-III thermostat, 30-AMP relay, 30-AMP circuit protector, and all mounting hardware.
Applications: '98-'02 and '04 LS1, '05-'06 LS2
MSRP: $99
Powermaster Performance
(865) 688-5953 *
www.powermastermotorsports.com
What Is It? Ultratorque Starter
Why You Need It: This starter provides more reliable cranking for race motors up to 18.1 compression, a 4.4:1 gear-reduction ratio, and is a direct bolt-in replacement for your factory starter. It produces 250 lb-ft of torque at only 10.5 pounds and may be used on stock original or race motors.
Applications: '98-'02 and '04 LS1, '05-'06 LS2
MSRP: $274