Pro Stock Tractors will weigh a maximum of 10,000 lbs.
Super Stock Tractors will weigh a maximum of 9,500 lbs.
Super Stock Tractors using Alcohol for fuel:
A) Will not be larger than 504 cubic inches
B) No overhead cams permitted.
C) Maximum of three (3) turbochargers permitted – weigh a maximum of 8,500 lbs.
** WEIGHT CAN AND WILL BE ADJUSTED DOWN FOR THE ALCOHOL SUPER STOCK TRACTORS FOR THE 2007 SEASON IF THE EAST COAST PULLERS BOARD OF DIRECTORS DETERMINES A DOMINATION FACTOR IS OCCURING **
All tractors will have a SFI 47.1 Spec or better rollover protection.
- All engine blocks must remain in original location as intended by the manufacturer. Sheet metal to be stock length and location must be stock appearing
- Tractors must have grill and hood in place as intended by manufacturer.
- Tractors must have stock motor block or OEM replacement block that will operate with the stock crankshaft for the model without any alterations for chassis mounting. Block can not be altered in any way externally, except for normal repair or for mounting fuel injection pumps. Internal webbing and water jacket to remain intact with provisions to re-bore motor block. Axle housing, rear-end housing, transmission case, and clutch housing must be OEM.
- Maximum wheelbase is 114” and maximum length is 13’ from the center of the rear axle to forward most part of the tractor.
- Up to four (4) turbo-chargers permitted, but only three (3) pressure stages permitted.
- All turbocharged engines on super stock tractors will have one cable totally surrounding the engine block and head. The cable will consist of 3/8” diameter and located between the first and second cylinders. Cable must pass through the manifold areas. Cable will have four (4) to six (6) inches of slack. There will be a minimum of two (2) clamps at all splices.
- A deflection shield between driver and engine from top of hood and top of transmission housing or clutch housing is required. Deflection shield will go from side shield to side shield. This will help provide a barrier during a flash fire.
- All Super stock engines are required to shield all rotating mass mounted on the front of the crankshaft. Shield to be frame rail to frame rail by a minimum .125 aluminum or steel fastened to the frame on each side by two evenly spaced bolts. (3/8-inch Grade 5 minimum.)
- All Super Stock tractors are required to have an approved bell housing blanket that meets the following specifications: 20 ply ballistic nylon or 20 ply Kevlar style 713 betting construction. At least seventeen (17) inches wide and long enough around the bell housing with six (6) inches of overlap, secured with a two (2) inch wide nylon web straps, with a steel “d” ring on one end and sewn the length of the blanket, except overlap area and long enough to pass back through the “d” ring and to be tied in a saddle cinch and with four (4) two inch nylon webs retaining strips, each at the front and back of blanket.
- All Super Stock tractors will run a safety tie bar system or a one-piece frame rail secured to the rear axle housing.
a. Tie bars will be mounted with at least four (4) axle housing bolts.
b. Tie bars will extend forward of bell housing area and be fastened to side of the block with a minimum of two (2) 5/8 bolts.
c Tie bars will be of sufficient strength to support weight of the tractor with the bolts used to split tractor removed.
d All safety blankets will be mounted inside safety tie bar system.
- No four-wheel drive tractors will be permitted.