GS Stock Appearing
Midwest Buick Challenge
Saturday, September 14, 2002

Norm Dihle and Rob Ross are inviting all stock appearing Gran Sport Buick owners for fun racing. These SA events will be held at:

·  Midwest Buick Challenge – September 14, 2002 at US 41 Dragway, Morocco, IN

·  2003 GS Nationals - May 13 - 17, 2003 (specific race date to be announced)

The desired outcome is to form a comradely akin to the GSE racers, a place we all of us can enjoy our SA Buicks and learn from each other. The race format will be "heads up" and cars will be paired using the ladder system. Listed below are the preliminary rules and is subject to group discussion (only valid racers).

The following is a list of names that are interested in helping to promote this class.

Chris Robertson
Greg Gessler
Rob Ross
Jim Robertson
Jim Capen
Norm Dihle / John Chamberlain
Steve Schlater and partner
The Diabo's
Richard Lassetter
Jim Rodgers
Loyd Bonecutter

Stock Appearing Class Race Rules

1.)  Eligible vehicles: Must be GS in appearance, 1965 thru 1974. Must be Stock Appearing.

2.)  Drivetrain:

·No trans brakes
·Transmission must have been available in year vehicle its in.
·Driveshaft changes for safety OK.
·No aftermarket shifters.
·All safety items legal.
·Rear axle ratio optional.
·Any torque converter.

3.) Engine:

·Engine must be stock appearing, matching casting/part numbers not required.
·Intake manifolds must be factory available.
·Carbs must be original style. Q-Jets must have correct fuel inlet for year vehicle.
·Smog equipment not necessary.
·No nitrous or chemical power adders.
·Air cleaners housing required, element not.
· No aftermarket or home built ram air/cold air intake systems.
·Engine must be able to pass vacuum test of 15” @ 1200 rpm in neutral. No subjective (ear) tests used.
·Ignition must appear factory stock, internals may be upgraded.
·Minimum rubber hose in fuel system.
·Carb spacers no thicker than ¼”.
·Engine must have factory appearing pulleys – belts not required.
·No electric water pumps.
·Mechanical fuel pump a must, can add electric fuel pump.
·Stock appearing fan (engine cooling) required.

4.) Tires, Wheels, Suspension:

·Max rear tire size as indicated by manufacturer is 10 in. tread width.
·Tires must be D.O.T. certified.
·Front tires should approximate factory size – “skinny” fronts not allowed.
·Any factory appearing wheel OK, front and rear must be same diameter.
·Air bags OK.
·Any front or rear springs ok.
·Any shocks.
·Front sway bar must be installed.
·No visible traction aids that are visible from side of vehicle (if its safe and out of sight, then ok).

5.) Interiors:

·Must be stock appearing to the casual eye.
·Aftermarket gauges OK.
·Windows must be functional and made of glass.

6.) Exhaust:

·2-½ “ pipes max diameter, must exit from factory location.
·Commercially available mufflers must be located in system.
·X and H pipes OK.

7.) Miscellaneous:

·A/C & related parts are not checked (not required).

·Smog equipment not checked (not required).

·Vehicle and driver must meet track safety rules.

Overall viewpoint:

The stock appearing class was created to have fun racing a stock appearing muscle car. You'll notice that it shouldn't be too difficult to enter, as “100 point” vehicles aren't required. We understand that 30-year-old vehicles are difficult to keep “Pure Stock” and for this reason we use the words “stock appearing”. Where things are difficult to enforce we either clarified rules or left alone.

List of Sponsors

1.  Greg Gessler - Buick head porting services - (908) 362 7692

2.  Evans Racing Engines – 270-685-4654 – Charlie Evans

3.  Automotive Machine and Performance - 800-624-3848– Mike Phillips

4.  Poston Enterprises – 800-635-9781 – Jim Poston

5.  Glenn Buege Buick - Lansing, Michigan - (517) 393-7880

6.  Norm Dihle Performance Q-Jet Re-build – 313-565-8507

Other sponsors to be announced


Call with questions: Norm Dihle – 313-565-8507
Rob Ross –