Garnertown Speedway 2007 Rules for: Late Model Stocks

General Rules:
1. Body: DIRT/MSCCS Late Model body rules apply
2. Wheel base: 103-inch minimum. Measured from center of front hub to center of rear hub.
3. 14" maximum aluminum wheels. Bead locks permitted
4. Two (2) hardness/tire rule option used.

Option 1: American Racer 56. Hoosier 55, 1600, LM 40, and these tires must have a minimum of a 60-hardness or higher durometer reading on the track’s durometer when checked and may be checked after qualifying/races.

Option 2: American Racer SD-44 or Hoosier D-21, 1350, or LM 20 tires are also allowed and these tires must have a minimum of a 44-hardness durometer reading on the track’s durometer when checked and may be checked after qualifying/races. Goodyear tires TBA.

All identification numbers must be visible on front and back of tires. No altering. NO TOLERANCE. Drivers caught with non-conforming tires will be immediately disqualified from that event’s racing activities. Driver will lose all points for that event and all monies and awards for that event. Driver will be fined $500 and will be suspended from competing for one (1) month. Track reserves right to impound any non-conforming or questionable tire(s).

5. Gas only. No alcohol.
6. Engine setback: Six (6) inches from center of ball joint to most forward spark plug, for all cars.
7. Any transmissions must have forward and reverse gears.
8. Any rear-end
9. No traction control devices allowed.
10. No Magneto
11. Any Carburetor
12. No vacuum pumps
13. Rules may be adjusted in interest of fairness of competition.

Engine Option A: Standard Late Model Stock Engine
1. Engines: Chevrolet-350, Chrysler-360, Ford-351 engines. Must be all steel except intake.
2. Engine maximum displacement of 362 cubic inches.
3. Any intake
4. After market water pump (steel or aluminum) permitted
5. Aftermarket fuel pumps in stock location
6. Any cam that will pull 17" of vacuum at 1,000 rpm by the track gauge.
7. No after market heads allowed. Stock OEM heads or GM Vortec heads allowed. Steel and straight plug heads only. No GM Angle Plug heads. No porting, polishing, grinding, or excessive deburring in any breathing area on heads. No shot peening or acid porting of heads allowed. Heads may be deburred on outside areas only. May have 3 angle valve jobs. Can be flat or angle milled.
8. Flat top pistons only.
9. Steel valves, rods and crank only.
10. Aftermarket oil pan permitted. No dry sumps allowed.
11. Must weigh a minimum of 2400 lbs anytime.
12. Track Protest rules apply

Engine Options B:
ONLY GM Performance Sealed Crate Motors:
GM part number P/N 88958602:
Must weigh a minimum of 2200 lbs anytime.
May run 12” spoiler.
GM part number P/N 88958604:
Must weigh a minimum 2300 lbs anytime.
May run 12” spoiler.
1. These engines are sealed at the intake manifold, cylinder head, front cover, and oil pan with special twist off bolts. Crate engines must not be altered, modified, or changed in any way from factory specifications.

2. The sealed engines must remain intact and not be tampered with. Any seals that have been remover or tampered with will make the engine illegal and ineligible for competition. Track reserves right to confiscate engine for technical inspection. The penalty for tampering with seals, modifying any internal engine parts, changing parts from stock as delivered and sealed from the factory will be subject to expulsion from racing in the class permanently.
3. No changes are allowed to the engines. Including Intake manifold, heads, valve covers, front cover, oil pan, harmonic balancer, or any other part(s) on or in the engines.

CARBURETOR
1. One 4-barrel carburetor only. Any Manufacturer.
2. Engine must be naturally aspirated.
3. May use one carburetor spacer, 1 inch maximum, and two standard one piece open hole paper gasket (maximum .070 inch thickness), one gasket between intake to spacer and one gasket between spacer to carburetor.

WATER PUMP
1. Cast or aluminum permitted.
2. No electric water pump allowed.

EXHAUST
1. Collection type headers required.
2. No Tri-Y headers allowed