MBPA 2007 CLASSES |
| 750 lb-12 HP and under Stock, Tire size 23x10.5x12 or smaller (Kids 12 and under) |
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| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 12 hp Block ** |
| ** Inserts on Stock Rod are allowed ** |
| ** Chevrolet Points are allowed ** |
| ** 26 mm Carburetor with Choke ** |
| ** Stock Valves, Keepers, Retainers & Springs ** |
| ** Stock Flywheel with NO fins removed ** |
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| 850 lb-12 HP and under Stock, Tire size 26x12x12 or smaller. (Kids 16 and under) |
|
| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 12 hp Block ** |
| ** Inserts on Stock Rod are allowed ** |
| ** Chevrolet Points are allowed ** |
| ** 26 mm Carburetor with Choke ** |
| ** Stock Valves, Keepers, Retainers & Springs ** |
| ** Stock Flywheel with NO fins removed ** |
|
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| 850 lb-8 HP and under Stock, Tire size 23x10.5x12 or smaller |
|
| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 8 hp Block ** |
| ** Inserts on Stock Rod are allowed ** |
| ** Chevrolet Points are allowed ** |
| ** 26 mm Carburetor with Choke ** |
| ** Stock Valves, Keepers, Retainers & Springs ** |
| ** Stock Flywheel with NO fins removed ** |
|
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| 900 lb-12 HP and under Stock, (Belt Drive ONLY) Tire size 26x12x12 or smaller |
|
| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 12 hp Block ** |
| ** Inserts on Stock Rod are allowed ** |
| ** Chevrolet Points are allowed ** |
| ** 26 mm Carburetor with Choke ** |
| ** Stock Valves, Keepers, Retainers & Springs ** |
| ** Stock Flywheel with NO fins removed ** |
|
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| 900 lb-12 HP and under Stock, Tire size 23x10.5x12or smaller |
|
| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 12 hp Block ** |
| ** Inserts on Stock Rod are allowed ** |
| ** Chevrolet Points are allowed ** |
| ** 26 mm Carburetor with Choke ** |
| ** Stock Valves, Keepers, Retainers & Springs ** |
| ** Stock Flywheel with NO fins removed ** |
|
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| 950 lb-12 HP and under Stock, Tire size 26x12x12 or smaller Powder Puff (ladies only) |
|
| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 12 hp Block ** |
| ** Inserts on Stock Rod are allowed ** |
| ** Chevrolet Points are allowed ** |
| ** 26 mm Carburetor with Choke ** |
| ** Stock Valves, Keepers, Retainers & Springs ** |
| ** Stock Flywheel with NO fins removed ** |
|
|
| 950 lb-12 HP and under Stock, Tire size 26x12x12 or smaller |
|
| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 12 hp Block ** |
| ** Inserts on Stock Rod are allowed ** |
| ** Chevrolet Points are allowed ** |
| ** 26 mm Carburetor with Choke ** |
| ** Stock Valves, Keepers, Retainers & Springs ** |
| ** Stock Flywheel with NO fins removed ** |
|
|
| 950 lb-18 HP and under Stock Twin Cylinder ONLY, Tire size 26x12x12 or smaller |
|
| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 18 hp Block ** |
| ** Inserts on Stock Rod are allowed ** |
| ** Chevrolet Points are allowed ** |
| ** 26 mm Carburetor with Choke ** |
| ** Stock Valves, Keepers, Retainers & Springs ** |
| ** Stock Flywheel with NO fins removed ** |
|
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| 950 lb-12 HP and under Stock II, Tire size 26x12x12 or smaller |
|
| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 12 hp Block with max 324 Lift ** |
| ** Inserts on Stock Rod are allowed ** |
| ** After Market Rod ( Stock Length) ** |
| ** Chevrolet Points are allowed ** |
| ** Any Carburetor ** |
| ** Stock Valves & Springs ** |
| ** After Market Keepers & Retainers ** |
| ** Steel Flywheel ** |
| ( Motor & Flywheel Shields Required ) |
|
|
| 1000 lb-16 HP and under Stock II (Single Cylinder), Tire size 26x12x12 or smaller |
|
| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 16 hp Block with max 324 Lift ** |
| ** Inserts on Stock Rod are allowed ** |
| ** After Market Rod ( Stock Length) ** |
| ** Chevrolet Points are allowed ** |
| ** Any Carburetor ** |
| ** Stock Valves & Springs ** |
| ** After Market Keepers & Retainers ** |
| ** Steel Flywheel ** |
| ( Motor & Flywheel Shields Required ) |
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| 1000 lb-20 HP and under Stock II (Twin or Single Cylinder), Tire size 26x12x12 or smaller |
|
| ** Bore 30 thousands over (.030) ** |
| ** Stock Head, Shaving Allowed ** |
| ** Stock Cam for 20 hp Block with max 324 Lift ** |
| ** Inserts on Stock Rod are allowed ** |
| ** After Market Rod ( Stock Length) ** |
| ** Chevrolet Points are allowed ** |
| ** Any Carburetor ** |
| ** Stock Valves & Springs ** |
| ** After Market Keepers & Retainers ** |
| ** Steel Flywheel ** |
| ( Motor & Flywheel Shields Required ) |
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FLOATER CLASSES |
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(Classes will be added IF there are 4 or more tractors present) |
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950 lb- 12 HP and under-Stock altered II, Tire size 26x12x12 or smaller |
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| ** Bore 30 thousands over (.030) ** |
| ** Milling, Decking, Porting & Polishing Allowed ** |
| ** Any Camshaft at Stock Location ** |
| ** Stock Stroke ** |
| ** After Market Rod ( Stock Length) ** |
| ** Chevrolet Points are allowed ** |
| ** Any Carburetor no Larger than 1.200 ** |
| ** Stock Valves Size ** |
| ** After Market Keepers & Retainers ** |
| ** Steel Flywheel ** |
| ( Motor & Flywheel Shields Required ) |
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1050 lb-62 CI Stock altered II,, Tire size 26x12x12 or smaller |
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| ** Single Engine ONLY Gas or Alcohol ** |
| ** Engine Requirements Same as above ** |
| ** Motor Scatter Shield Required ** |
| ** Clutch & Flywheel Shields Required ** |
| ** Weight Bracket not to exceed 8 feet forward from the center of the rear axel ** |
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M.B.P.A. RESERVES THE RIGHT TO ELIMINATE OR ADD TO THESE CLASSES IN CASES WHERE TIME IS LIMITED. |