Adjustable Pushrods For LS Engines
What it is: Comp Camps XD-A adjustable pushrods.
Why you care: Designed to reduce weight and improve accuracy, Comp Cams’ new adjustable pushrods allow for accurate setting of lash or pre-load when using a non-adjustable style of rockers. The pushrods are manufactured especially for engines with low-mass rocker arms and are currently only available with drop-in fitment for GM LS engines. The system provides increased valvetrain stability, can withstand more than 9,000 rpm in solid roller configurations, delivers a 90-percent increase in bending stiffness, and allows for lightening of rocker arms by 30-plus grams on the backside with the adjuster and support removed.
How much: Priced at Summit Racing for approximately $225.
Learn more: Comp Cams, 800/999-0853; CompCams.com
Welded Chamber Mufflers
What it is: Welded chamber mufflers from Speedway Motors.
Why you care: Speedway Motors is introducing its two-chamber welded mufflers to its already expansive product catalog. Designed to increase horsepower and torque, the fully welded case is constructed of 16-gauge steel to provide maximum durability without internal packing to blow out or burn up. Finished in a high-temperature black coating, the units are available in several sizes, including 2.25-, 2.5-, and 3-inch inlets and outlets with a variety of centered or offset orientations.
How much: Prices start at $49.99 per muffler at Speedway Motors.
Learn more: Speedway Motors, 800/979.0122; SpeedwayMotors.com
OEM Replacement Flexplates For BBC/SBC/GM LS
What it is: One-piece, lightweight flexplates for BBC/SBC and GM LS applications from TCI.
Why you care: TCI Automotive is offering a new one-piece flexplate designed for high-rpm small-block and big-block Chevrolet and GM LS applications. Manufactured as a heavy-duty OEM replacement, the flexplates are forged from 4140 steel and carry a 29.2 SFI rating. Characteristics include a hobbed-on ring gear, laser-welded converter spacers, gas nitriding to increase hardness and strength, and CNC-milled lightening holes to further reduce the mass and weight. The small- and big-block flexplates weigh in at 5.3 pounds, and the GM LS is 6.11 pounds. Both configurations can withstand more than 12,000 rpm.
How much: From $299.99 to $369.95, available from TCI Automotive.
Learn more: TCI Automotive, 888/776-9824; TCIauto.com
Compact Remote Mount TPS
What it is: Adjustable, remote-mount throttle position sensor (TPS) from TCI Automotive.
Why you care: TCI Automotive recently updated its remote-mount TPS. Available now in a compact, fully enclosed housing to fit a wide range of applications with 4L60E or 4L80E transmissions, it can be installed on the carburetor or mounted directly to the firewall.
How much: $149.95, available from TCI Automotive.
Learn more: TCI Automotive, 888/776-9824; TCIauto.com
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