MODIFIED STREET RULES

WEIGHT
A. 2700 lbs. Cars that run 602 crate motor weigh 2500 lbs. Must have GM specs and all seals must be in place. Engine must run HEI distributor. No MSD distributor or box.
B. All cars must have specific weight posted on top left side of roof.
C. Must weigh as posted at any time.
D. All weight must be bolted on with two bolts and painted white with car # on the weight.
E. Track reserves the right to adjust weights in interest of competition should it deem necessary.

BODY
A. Stock appearing aftermarket steel or aluminum bodies is permitted. All aftermarket bodies must have plastic nose. All bodies must be mounted straight-up, this means your roof is mounted exactly in the center of the chassis (left to right). All bodies stock or aftermarket is subject to approval by tech inspector.
B. No front push bars are permitted. All tubing must be kept completely behind front bumper in the grill area. If you have a body style with a plastic nosepiece all guards must be behind nosepiece.
C. Rear of car may be open. Rear push bars permitted.
D. All windows must be open. (No glass or lexan permitted)
E. No homemade nosepieces or body parts.
F. 8 in. spoiler height by 72 in. width maximum. Spoilers will be measured by the total length and width of material, in any shape. 3 braces 18 in. at base frame are permitted.
G. A metal fire-wall must encompass the driver's compartment - front, rear, sides and floorboard.

FRAME & RAILS
A. Stock frame rails. Body does not have to match frame.
B. Tying frame rails together, reinforcing or X bracing permitted.
C. Weight jack area may be altered. Buckets, plates, etc.
D. Frame or frame rails may be replaced from snout, (must be stock automotive snout) to the rear of car with a minimum of 2" X 2" square material or 1.75" round minimum and must be at least .090-wall thickness.
E. A stock snout must have a minimum of 22" of stock snout (OEM) frame. Any less will result in 50lb weight penalty.
F. WARNING: Technical Inspector must approve all cars with replaced frame or frame rails. Remember this is NOT late model or limited/crate, so don't build a late model or limited/crate car.

FRONT SUSPENSION AND STEERING
A. Tubular upper control arms and mounts permitted.
B. OEM Lower control arms for make and model required. After market bushings permitted.
C. OEM or Safety spindles and hubs permitted.
D. 5" minimum O.D. on coil springs.
E. Weight jacks permitted.
F. Any type of steering permitted.
G. Outer tie rod ends and any tie rod sleeves permitted.

SHOCKS:
A. Racing Shocks permitted, one shock per wheel, No canister or double adjustable shocks permitted

REAR SUSPENSION Leaf Spring Cars
A. Slide Boxes on leaf cars permitted.
B. No coil over or coil springs permitted.
C. Upper link, rubber bushing torque link or spring loaded type upper link permitted on leaf cars.
D. No 5th coil, 90 - 10's, lift bar, pull bar or Reese bar, etc.

REAR SUSPENSION Coil Spring Cars
A. May use a three point set up with a solid mount upper link bar, solid bar & rod ends. No 90 - 10's, spring bar or rubber bushing torque links allowed.
B. Solid Pan hard Bars with rod ends permitted.
C. Rear lower control arms may be aluminum or steel tubes with rod ends.
D. 5" minimum O.D. on coil springs.
E. No coil over permitted.
F. NO 4 bar suspensions. Any one with birdcages must have them drilled and tapped solid to the axle tube.

ROLL CAGE
A. A minimum of three door bars must be used on left side, two on right side, and both must extend
into door panels.
B. Seat must be fastened to cage or frame. Containment seats strongly recommended.
C. Bars must be minimum 1.5 in O.D. and .095 thicknesses.
D. Roll cage must be welded to frame.
E. Seat must be fastened to roll bars or rail.

SAFETY
A. Must have 3" shoulder harness and seat belt, attached to roll cage. Seat belts must meet S.F.I specs.
B. Must have approved fire extinguisher.
C. Must have fuel cell mounted with two 2" metal straps.
D. Aluminum seats only
E. Hanz device or any type of approved head and neck restraint is strongly recommended. There will be a 100lb. penalty for those who don't have one in 2013. There will be a one race grace period for those not having the proper head and neck restraint.

FUEL CELL/FUEL
A. An approved fuel cell, 32-gallon max. Recommended .20 gauge metal box, supported by a minimum
f 2" straps by 1/8 inch thick.
B. Gas only - no alcohol - no nitrous oxide, nitro methane or other nitrate additives , no propylene oxide. GAS ONLY RACING GAS AVAILABLE AT RACE TRACK

REAR END
A. Spool or welded rear O.K.
B. Quick Change Permitted must have steel axle tubes.
C. 9 in. Ford floaters allowed.
D. No ratchets, True-Trac or any other type locker unit allowed.

TIRES & WHEELS
A. American Racer spec 48's or 56's
B. Hoosier spec 1350's or 1600's
C. Premium non spec tires must add 50 lbs.
D. Goodyear 45's and 50's, consult tech inspectors before racing these tires.
E. Any wheel 14" maximum width
F. Tires must have all numbers and names on the tire. No grinding off of numbers or names.
G. Tires may and will be confiscated at any time the officials deem necessary for samples or to check for tire prep in or outside the tire. TCR has a no tolerance rule for tire treatment or prep to these tires. If TCR takes a sample from you, your money will be held until the results have been returned to TCR. TCR tech official's decision will be final and there will be NO resending of the samples.

BRAKES
A. Four wheel disc brakes permitted.
B. Dual master cylinders permitted.
C. Brake adjusters permitted.

ENGINE SET BACK
A. Front most forward spark plug must be in line with or in front of top ball joint (NO TOLERANCE).
If engine is set back add 100lb. 50lb in front of bell housing. 50lb in front of spindles.
This 100lb is added to the total weight of car. (NOT included in the weight)
B. Must have original engine cross member in original position. No additional mounting brackets
allowed.
C. Drive train must be in centerline of car.

ENGINE: 365 Cubic Inch Maximum
A. All engines have a maximum bore size and must be standard stroke for engine being used.
B. Small blocks only. No big blocks.

BLOCK:
A. OEM Cast iron V-8 block only.
B. Maximum cylinder bore size 4.060
C. OEM main caps only. No after market main caps, no splayed or strapped main caps.
D. Deburring block and plugging deck to strengthen block permitted.
E. Plug or vent and screen oil drain holes in lifter valley permitted.
F. May surface deck of block.
G. Lifter bore must be OEM diameter for engine, Chevrolet .840, Ford .875, Chrysler .901

CRANK
A. Standard production OEM or Stock Replacement cast or steel crank.
B. Must be standard production stroke for engine. Example 327cid Chevy- 3.250 / 350 cid Chevy- 3.480
302cid Ford- 300 / 351 cid Ford - 3.500 / 360 cid Chrysler- 3.580
C. No stroking or destroking
D. No lightening or knife-edging crank.
E. No turning down counter weights or drilling crank pins.
F. Eagle or Scat type stock cranks allowed. The thru holes will not be considered drilling the crank pins
Due to the cranks are manufactured with the thru holes.
G. May balance engine.

TIMING CHAIN:
A. Any chain and gears.
B. No gear drive or belt drives.

RODS
A. Stock appearing I-beam steel rods.
B. No H-beam sportsman rods.
C. 6-inch rods permitted.
D. Press or floating pins permitted.
E. Rods and Cranks must be stock or must run the following: S. R. only forged rod, no billet or machined
Rods. May run Eagle # CRS55700B3D rods length. Chevy 350 stroke 3.480 rod length 5.70, Ford 351
Stroke 3.500 rod length 5.955, Mopar 360 stroke 3.580 rod length 6.123.

PISTONS
A. Any flat top pistons and pins.
B. No dome pistons.
C. Pistons cannot come above deck surface.

CAM:
A. Any lift and duration permitted.
B. No roller or mushroom or radius cams.
C. No stud girdles.
D. Solid lift cams and lifters permitted.
E. Lifter must be OEM diameter for engine, Chevrolet .840, Ford .875, Chrysler .901

LIFTERS:
A. No cheater hydraulic or modified lifters.
B. Anti pump-up lifters permitted.
C. No roller or mushroom or radius lifters.
D. Lifter must be OEM diameter for engine, Chevrolet .840, Ford .875, Chrysler .901

EXHAUST/MUFFLERS:
A. Collector type headers required.
B. Mufflers are mandatory.
C. Any car judged to be too loud, by the track officials, under race conditions, may be black flagged.

HEADS
A. OEM standard production cast iron heads only. All heads must have readable casting numbers.
B. Chevrolet straight plug heads only.
C. Chevrolet Bowtie heads allowed with 50lb. weight penalty.
D. World Products steel replacement heads casting #I-052 permitted.
E. Any ratio of roller rocker arms are permitted.
F. Maximum size for Chevrolet, intake-2.020, exhaust-1.60. Maximum size for Ford and Chrysler,
(Consult Tech inspector)
G. Ford and Chrysler angle plug standard production cast iron heads permitted.
H. May surface heads (no cc limit)
I. Steel valves only, No titanium
J. Valve stem diameter 11/32 minimum for all engines.
K. Under cut stems permitted, any type guides.
L. Any valve springs and keepers allowed.
M. Steel retainers required.
N. Guide plates and screw in studs permitted.
O. Roller rocker arms permitted any ratio.
P. No stud girdles
Q. No shaft rockers.

INTAKE:
A. Can be port matched to head, but no more than 1" grind permitted on intake.
B. Any intake permitted, and any size carb. Spacer

TRANSMISSIONS
A. Standard production 3 or 4 speed.
B. Triple Disc clutches permitted.
C. Bert, Brinn, Falcon, or any other Transmission with internal clutches permitted. Must add 100 lb.
D. All Transmissions must have working Reverse.
E. Stock type Bell Housing ONLY. No Bert, Brinn, Falcon type bell housings or any aftermarket bell housing permitted.

DISTRIBUTOR
A. Factory HEI or single point distributor. NO MSD allowed.
B. Advance kit permitted.
C. No ignition booster.
D. No dry cell battery pack to ignition.
E. No alternator.
F. After-market coil and module will be allowed as long as they are stock appearing and mount in stock
Location with no modifications

CARBURETOR: One carburetor only. No Dominator or Predator Carbs allowed

PROTEST FEES
A. One Head -- $350.00
B. Oil Pan -- $300.00
C. Valve Cover -- $100.00
D. Engine Setback -- $50.00
E. Any item not listed in protest fees is considered a visual protest item and must be protested before
race and not after.

NOTE: Track reserves the right to delete, change or amend rules in the interest of competition.

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