Pure Street Western Kentucky Speedway 2014 Rules

1. Any stock U.S. production model, No convertibles, station wagons or trucks. Aftermarket aluminum bodies ok. Must meet minimum weight requirements. Aftermarket stock type nose pieces are allowed.
2. Minimum stock wheel base 108
3. Must have full racing seat and belts.
4. Interior boxing is allowed but must be safe and approved by tech.
5. Sub-frame connectors ok. Must use original front and rear subs.
6. Tow chain is mandatory on front and rear bumper.
7. Must have firewall between driver and engine, or enclosed cockpit.
8. Window nets are mandatory.
9. Solid motor mounts and mid mounts are allowed.
10. Weight rule is 3200 lb. after race.
11. All weights must be painted white and numbered to your car.
12. Six inch max height on spoiler.
13. Fuel cell or gas tank must be approved by tech inspector. Original tank must be removed.

Engine
1. No engine set back from original, (number 1 plug must be in line with upper ball joint).
2. Must be all steel except for intake, (optional 1 four barrel), one piece
3. Racing heads must be steel (Dart, Bowtie, RHS, etc.), 23 degree only. No Aluminum.
4. NO AFTER MARKET BLOCKS OF ANY KIND. No aluminum blocks.
 Chevrolet 305 or 350 block (No 400s) Ford 302 or 351. Dodge 318 or 360. Aftermarket Crank Rods ok. Dome Pistons ok. Any stroke combination in stock block is allowed.
5. No dry sump oil pumps.
6. Headers optional. Any exhaust exit location ok.
7. Carburetor will be one two or four barrel.  Gas only. No Dominators.
8. No adjustable restrictor plates from cockpit.
9. NO ROLLER CAMSHAFTS. Hydraulic or solid flat tappet cams only.
10. No mag ignitions.
11. Aftermarket ignitions (MSD ect.) are allowed.

Transmission

1. Any automatic transmission with any convertor combination ok.
2. Any Straight shift with any disc clutch
3. Bert or Brinn is allowed. Add 100 Lbs.
4. No “sprint car type” direct drives.

Tires and Wheels
1. 10 inch maximum width steel wheel only.
2. Any 8 or 10 inch racing or DOT tire ok.  No recaps.
3. Bead locks allowed on any wheel.
4. No wide 5 wheels

Rear Ends
1. Any OEM rear end ok. No fabricated housings. No quick change.
2. 360 driveshaft hoop is mandatory, installed on forward third of driveshaft.
3. Driveshaft must be painted white.
4. Driveshaft must be steel.
5. No wide 5 racing hubs.
 
Brakes
1. No aftermarket racing brake calipers.
2. Disc brakes on all four wheels are allowed.
3. Brake pedals and bias adjuster optional.

Suspension
1. Stock unaltered A-frame mounts and trailing arm mounts.
2. Tubular upper A-arms allowed but mounting brackets must be stock and original location.
3. Lower A-frames must be stock and original location.
4. Jack bolts on all four corners are allowed.
5. One stock type or racing shock per corner, No adjustable coil-over shocks.
Springs must be in original location for that car.
6. Upper trailing arms may be altered for pinion angle.
7. Lower trailing arms must be stock and in stock location.
8. No j-bar or panhard bars are allowed.
9. No pull bars of any type on rear ends.

Roll Bar & Roll Cage Installation
Roll cages must be built from steel tubing (no pipe of any kind) 1 ½ O. D. x .095”
wall thickness. All tubing must be mandrel bent and welded with arc,
Mig or Tig. Full four post roll cage with at least one horizontal bar
behind driver from left to right, in the main roll bar. A diagonal brace
from top to bottom in the main roll bar. A minimum of three horizontal
door bar in passenger side, two braces from top of main roll bar down
to trunk floor (behind rear axle. A horizontal from left to right between
front cage post at dash height, and two braces or snout hoop forward
from dash brace to front sub-frame horns. Other bars or braces to protect
radiator, etc. are allowed, but must remain inside body lines. Roll bars
must pass tech. 

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NOTE:
The safety of drivers, pit crews, track personnel and spectators is our top priority. Please build your cars in accordance to our minimum safety requirements.