4 CYLINDER LIGHT TRUCK (MEN&WOMEN)

O.E.M = ORIGINAL EQUIPMENT MANUFACTURER
ELIGIBLE TRUCKS
ONLY 1998 OR OLDER , MAXIMUM EIGHT VALVE , FOUR CYLINDER PICK-UP TRUCKS ARE ALLOWED. TRUCKS MUST BE NON-TURBO , OPEN BED , REAR-WHEEL DRIVE ONLY
NO FOUR WHEEL DRIVE CONVERSIONS
LOCATION- ALL TRUCKS MUST MAINTAIN ENGINE LOCATION AS MANUFACTURED NO MOVING MOUNTS OR LOWERING OR MOVING BACK OF ENGINE
ENGINES- ENGINE MUST BE IDENTICAL TO THE MAKE OF THE TRUCK. ALL ENGINE PARTS MUST BE UNMODIFIED AND IDENTICAL TO STANDARD PARTS FOR THE MAKE OF SAID TRUCK .
ENGINE COMPONENTS-
A.- PISTONS MUST BE OF OEM STOCK HEIGHT , OEM STOCK MATERIAL , WITH AN IDENTICAL OEM STOCK COMBUSTION SURFACE , BUT MAY OVERBORE UP TO .060” IN DIAMETER ONLY. ANY REPLACEMENT PISTON MUST BE EQUAL OR GREATER IN WEIGHT THAN THE OEM STOCK PISTON NO EXCEPTIONS. MUST BE STOCK , OEM ENGINE COMPRESSION FOR YEAR AND MODEL OF TRUCK .
B.- ENGINE DECK HEIGHT MUST REMAIN OEM STOCK
C.- CYLINDER HEAD MUST REMAIN STOCK THAT MEANS NO LARGER VALVES , OR PORTING. THE CYLINDER HEAD MAY BE RESURFACED. THE USE OF AN OLDER MODEL CYLINDER HEAD FROM SAME CUBIC INCH ENGINE MAY BE USE TO CONVERT TO CARBURATION.
D.- FUEL/AIR- MAY RUN A CARBURETOR NO LARGER THATN A HOLLEY 350 CFM . MAY USE A SPACER FOR CARB. NO THICKER THAN 1”. MAY USE ADAPTER TO MOUNT CARB OR MILD MODIFICATION TO CARB MOUNTING POSITON ONLY NO PORTING INTAKE MANIFOLD. FORD RANGERS MUST USE ONLY THE GREY OEM COLOR INJECTOR WITH A 14Lb/Hr RATING NO EXCEPTIONS , ON FUEL INJECTED MODELS.
E.- FUEL INJECTED MODELS - OEM FUEL INJECTION MUST BE USED , OEM SIZE INJECTORS , OEM SIZE THROTTLE BODIES MUST BE USED. ECU MUST BE STOCK STYLE, BUT COMPUTER CHIP IS ALLOWED. MAY USE ADJUSTABLE FUEL PRESSURE REGULATER AND MAY ALTER SENSOR READINGS BY WAY OF RESISTORS. MASS AIR FLOW SENSORS IF EQUIPED MUST REMAN OEM SIZE.
F.- MUST USE STOCK IGNITON FOR MODEL OF TRUCK MAY USE AFTERMARKET PLUGS AND WIRES. AFTERMARKET IGNITION COILS ARE ALLOWED ON CARBERATED MODELS.
FUEL TANK- MUST RUN AN APPROVED FUEL CELL ENCASED IN A 20 GUAGE STEEL BOX.
8 GALLON MAXIMUM FUEL CELL IS MANDATORY NO EXCEPTIONS. MUST BE LOCATED IN CENTER OF CHASSIS LOCATED BEHIND REAR END AND A MINIMUM OF 8” GROUND CLEARENCE.
EXHAUST- AFTERMARKET TUBULAR HEADERS ARE PERMITTED. TRUCK MAY HAVE ANY STYLE EXHAUST BUT MUST EXIT BEHIND THE DRIVERAND HAVE SOME TYPE OF MUFFLER .
COOLING SYSTEM- ELECTRIC FANS MAY BE USED. MUST ANY TYPE RADIATOR MOUNTED IN STOCK LOCATION. MUST HAVE A MINIMUM 1 QUART OVERFLOW TANK SECURLY FASTENED UNDERHOOD. OVERFLOW MUST BLOW-OFF ON THE PASSENGER FRONT LOWER QUARTER OF WINDSHEILD. ABSOLUTELY NO ANTI-FREEZE IS PERMITTED. ATER ONLEY MAY USE “WATER WETTER’ ADDITIVE OR EQUIVALENT.
RUNNING GEAR- MUST USE OEM TRANSMISSION NO MODIFICATIONS.
REAR ENDS- MUST USE STOCK REAR END FOR TRUCK GEAR CHANGES ARE ALLOWED