2017 LTX Shootout Modified NA Rules
Modified N/A
Qualifying, Ladder, and Tree Information
Limited to quickest 16 qualifiers. Sportsman Ladder. .400 Pro Tree
Vehicle/Body Rules
Open to all year, make, and model vehicles. All vehicles must be stock bodied and stock appearing. Minimum race weight including driver 3000lbs.
Engine & Drivetrain Rules
Must have LT1 based engine (Factory LT1 Block). Cylinder heads must retain the factory 23 degree valve angle, Trick Flow 21 degree heads permitted (TFS-30400008-M54). Aftermarket heads and converted small block Chevrolet heads will be permitted if they follow the above guidelines.
Aftermarket EFI PCM, LS1/24x PCM conversions, & Carburetors are allowed with a 100lbs weight penalty.
Gasoline or E85 Only.
Rear mounted batteries must be mounted and vented per NHRA specifications and have a functional disconnect switch.
Any GM transmission allowed. Torque converters not permitted with manual transmissions and clutch activated automatic transmissions are prohibited. Line locks, trans-brakes and two-steps allowed. Throttle stops, delay boxes, and auto shifters prohibited.
Any automotive rear axle permitted.
No Power adder or power adder equipment allowed on/in vehicle during competition of this class.
Wheels & Tires
Any automotive wheel permitted. Tires must have a maximum height of 30” and a maximum tread width of 10.5” for bias-ply and radial tires.
During competition passes, all vehicles will be required to weigh after each pass. Vehicles under minimum weight will be disqualified.
