GENERAL OVERVIEW:
This is a NATURALLY ASPIRATED heads-up shoot-out style drag racing class.
Developed for naturally aspirated LS small block powered GM cars and trucks.
All races are on a .400 Pro Tree and in a heads up format.
This will be an ALL RUN qualifying format.
Vehicles are required to be stock appearing and stock bodied.
All vehicles MUST pass NHRA safety inspection for ET and speed.
A Sportsman ladder will determine running order.
Vehicles must be driven to staging and to scales, can be towed after scales
Vehicles are required to run GM Performance Parts Sponsor decal and GM Performance Parts LSX Shootout license plate
ENGINE:
Only LS style small block engines are allowed.
GM manufactured aluminum or iron block required
Displacement will be verified by using the P&G method
Maximum of (2) mufflers are mandatory
4-inch maximum exhaust exit size
Gasoline is the only fuel allowed
Cylinder heads limited to OEM or OEM Style aftermarket head.
Billet cylinder heads are prohibited
Canted valve variations permitted with 50# weight adder
Cylinder head must be identifiable to verify legality
Any modifications allowed to legal heads
Dry sump oiling systems permitted
BALLAST:
Must be NHRA approved mounting
Maximum 100# per individual weight bar
No loose or unsecured ballast allowed and will be grounds for disqualification
CARBURETORS / INDUCTION:
Any single 4-bbl carburetor allowed
Any EFI system allowed
Any style intake manifold allowed, including sheet metal/fabricated manifolds.
Production OEM intake manifolds (stock unaltered runner lengths) are permitted a 50# weight break
Any modifications permitted, manifold must be identifyable
TRANSMISSION:
Any OEM style automatic or manual transmissions permitted (* see weights)
Any torque converter allowed. Lock-up type permitted.
Torque convertors not permitted with manual transmissions
Clutch-activated automatic transmissions (re: Clutch-flite) are prohibited
SUSPENSION:
Aftermarket K-members allowed
Mini tubs and notched frame rails allowed
Factory rear frame rail required in OEM location
Wheelie bars are permitted
Stock type suspensions permitted with stock mounting locations
Ladder bars permitted with 50# weight adder
Non-OEM 4-links prohibited
Coil-overs permitted
Front-wheel drive conversions prohibited
INTERIOR:
Must be original appearing.
Floors must be upholstered, headliners required
Two seats are required in stock location, rear seat may be removed
OEM appearing dash required
BODY:
Forward facing hood scoops prohibited except for OEM type
Cowl induction hoods permitted, 6 max
OEM composite body panels permitted
Light-weight or fiberglass body pieces limited to hood, rear deck and bumpers
Overhangs must be OEM, Wheelbase must be OEM +/- 1
Doors must be OEM material
Rear spoilers permitted, max. length 26, may not be moulded into the body
Tinted windows are not permitted forward of the B pillar, per NHRA requirements
ELECTRICAL:
Electronic driving aids prohibited
Throttle stops, delay boxes and auto shifters prohibited
Two-step, trans-brakes and line-locks are permitted
Functional headlights, taillights and horn required
Any aftermarket ignition permitted
TIRES-WHEELS:
TIRES FRONT: Front tires must have a minimum tread width of 4.5 inches.
TIRES REAR: Street type or racing slicks permitted
Maximum actual measured tire size is as follows:
Actual measured tread of tire is limited to 10.75 inches by 28.6 inches tall
Maximum roll out to be 90 inches as measured at the tire edge
Actual tire width will be measured by a go no go gauge after conclusion of run at scale area
Tire tread may not extend outside fender lip.
W tires prohibited, tire shaving prohibited
WEIGHTS:
Base CID Base weight
370 3150
420 3300
440 3375
470 3450
8.5 lbs/cu in penalty applies for cubic inches over base weight break limit. (Maximum cubic inch still applies.) All weights are with driver & rounded down to the five pound increment. Ex: A calculated weight of 3228 would be required to weigh 3225 with driver at scales.
SPECIAL NOTES:
Absolutely no nitrous or other power-adder equipment will be allowed on the vehicle.
Nitrous plates, solenoids, soft or hard lines, nozzles, bottles or disconnected superchargers must be removed.
PURSE:
All Motor Shootout Class:
$2,000 Win + LS327/480 Crate Engine + Jacket + Plaque
$1,000 R/U + Plaque
$500 Semis
$100 Quarters