Yasses Trucking & Construction Street Stock Rules

 
 
 
#1 –
2019 Genesee Speedway Street Stock Rules



#1 – Body
1.1 Any American made, rear wheel drive car or pickup
1.2 Minimum wheel base will be 107” with a 1” tolerance
1.3 Full frame cars may replace rear frame after kick ups with 2 x 3 tubing
1.4 Stock unibody cards may replace with 2 x 3, 36” back from centerline of front wheels, must go over the top of rearend housing.
1.5 BRP (Camaro clip) late model chassis allowed, must be converted to either F body (leaf) or G body (coil) rear suspension.
1.6 Minimum weight of 2900 lbs with driver, after completion of race. Track scales will be used to determine legal weight.
1.7 4 point roll cage minimum, with 4 door bars on drivers side, front and rear hoops. 1 1⁄2” .095 tubing
minimum.
1.8 Stock steel bodies allowed, optional aftermarket steel or aluminum bodies (AR bodies, 5 Star bodies,
Performance bodies) legal. Rear windows on cars using station wagon bodies remain open at all times.
Must be ONE stock appearing, 5” spoiler allowed with 5” sides.
1.9 Maximum body width 82”.
1.10 Must run stock type nose (no MD3, or Dominator type late model). Tail pieces optional.
1.11 Must run full rear bumper, minimum 12” off track surface, and remain inside of rear quarter panels.
1.12 Cold air boxes allowed.
1.13 All cars must be presentable.
#2 – Front Suspension
2.1 All suspension and steering components must be OEM and in stock location, with the exceptions of steel tubular style upper control arms, shocks, and tie rods which may be changed to heim ends. Heim end tubular upper controls arms allowed.
2.2 Steering quickeners allowed.
2.3 Jacking bolts allowed.
2.4 One non adjustable, steel body shock per wheel, mounting location optional, no Schrader valves, or coilovers allowed.
#3 – Rear Suspension
3.1 Leaf spring allowed.
3.2 No pull bars. No 3 link. No panhard bard or jbars allowed.
3.3 Floater rearends allowed. No gundrilled axles, steel spool only. No lockers or traction devices.
3.4 No quick change rearends allowed.
3.5 Rear end side, arm/housing brackets must be in stock location horizontally on axle tube. Arms can be
located anywhere vertically in brackets, no more than 5 1⁄2” from housing.
3.6 Coil springs must be mounted in stock G body (straight above axle and 34” center to center on 108”
wheelbase cars) or stock A body (forward of axle centerline and 42” center to center on 112” wheelbase
cars) location.
3.7 Chassis side mounting brackets (upper and lower) must be in stock locations (+/- 1”). Must be stock
width and stock height.
3.8 Rear clip must be centered with front clip.
3.10 Rear control arms may be converted to adjustable rods with heims but must retain stock length (+/- 1”).
Mono ball also allowed.
#4 – Engine
Option 1 – Factory sealed 602 crate with stock venture Holley 650 carb (4777, 80777, or 4150 HP allowed). Option 2;
4.1 All engines must remain stock stroke configuration for manufacturing and cubic inch. Stock or stock
replacement, unaltered crankshafts only. Minimum 48 lbs, no lightening or knife edging. No billet or
aluminum rods.
4.2 Flat top or dished pistons only, no part of the piston may extend above deck surface of block.
4.3 Maximum overbore – GM 350.070, Ford 351.070, Chrysler 360.040
4.4 Stock production blocks only.
4.5 Cast iron stock production heads, bowtie heads, Dart SS10021070 or 10021010, World Products 043600
or 043610 with max 2.02 intake and 1.60 exhaust valve. Vortec 906 and 062 heads allowed, Dart 180
only 10110010 F 10110010.
4.6 No race flow or undercut valves allowed.
4.7 No porting of heads allowed.
4.8 Roller rocker arms allowed, with ratio of 1.6, No shaft rockers unless factory stock.
4.9 Screw in studs, guide plates, and stud girdles will be permitted.
4.10 No Roller camshifts. Must have OEM firing order.
4.11 Engine setback MAX, center of number 1 spark plug hole in line with center of upper ball joint.
4.12 Factory stock distributor, points or HEI permitted – No circuit board modules allowed. May have welded distributor 
4.13 12 volt electrical system only.
4.14 Holley 4412 or 4412s, HP, or XP carbs allowed. Stock 1-3/8” ROUND venture size, all carbs must pass
with track tech tools. Base plate butterflies cannot exceed 1.688”.
4.15 Stock cast iron 2 barrel, or optional aluminum intakes permitted. No porting, No marine, and No military intakes allowed. Weiand 7546, 7547, 7547-1 (chevy), 7515, 7516 (ford), 7545, 2920 (chrysler), Edelbrook 5001, 2101, 2116, (chevy)m 5021, 5081, 2760 (ford), 5076 (chrysler), and GM GMPP 602 crate intakes will be permitted.
4.16 Any aluminum 2 barrel adapter, maximum adapter thickness of 1 1/8” with gaskets.
4.17 Stock type fuel pumps only.
4.18 1-5/8 or 1-3/4 headers only, crossover headers or conventional down under headers only. No step, tri y, 180 degree, or late model style headers.
4.19 Mufflers mandatory, 3” pipes maximum.
4.20 Site plug optional in drivers side of oil pan, 3-6 inches from front of pan. If bottom end is not accessible by tech, be prepared to remove the oil pan.
#5 – Transmission, Bellhousing, Driveshaft
5.1 Any transmission, automatic or standard allowed. Standard must have steel bellhousing or blanket. 5.2 Steel driveshaft painted white.
5.3 Driveshaft hoops mandatory, 6” from front U-joint and another in the middle of the driveshaft.
5.4 Bert/Brinn/Falcon style tranny allowed.
#6 – Brakes
6.1 4 wheel brakes mandatory.
6.2 OEM calipers only.
6.3 Aftermarket master cylinder allowed. 6.4 Remote brake adjuster allowed.
#7 – Tires and Wheels
7.1 Steel wheels only with a maximum width of 8”, beadlocks allowed.
7.2 No wide 5 hubs allowed.
7.3 Must have racing type 1” lug nuts.
7.4 Tires – American Racer 27.5 x 8" JSRT, 26.5 x 8" JSRT or Hoosier 36156 or 36149 8 inch tire. Medium or harder only- no softs. No snows, aggressive tread, or duals permitted. No chemical treating.
#8 – Safety
8.1 All cars must have an aluminum racing seat safely installed with no less than 6 bolts (subject to tech).
8.2 All cars must have a window net securely mounted. Net must be up and secure when on track.
8.3 All drivers must have a one way radio on the 454.000 frequency.
8.4 All fuel cells must have rubber flaps.
*BRP and Hybrid (f/g combined) chassis guidelines and rules subject to change if chassis is proven to be over dominant. 

ALL CRATE ENGINES MUST HAVE SNAP BOLTS FROM GM, OR THEY WILL BE SUBJECT TO TECH AND TEARDOWN.
ALL OFFICIAL AND TECH RULINGS ARE FINAL!!

While the above rules offer a good guideline, not everything can be covered by a written rule. If you have any questions, ASK FIRST. Any non covered part can be deemed illegal at any time. Anything not covered in these rules is not assumed legal.

 

ALL CARS MUST HAVE AN ALUMINUM RACING SEAT SAFELY INSTALLED IN CAR WITH NO LESS THAN 6 BOLTS. INSTALLATION IS SUBJECT TO TECH.
ALL CARS MUST HAVE WINDOW NET AND DRIVERS MUST HAVE RACEIVER ON FREQ. 454.000
**While the above rules offer a good outline, not everything can be covered by a written rule. If a car has a part that no one else has, and its not mentioned in rules, its not assumed legal. Ask first.