2018
Sportsman Rules (Updated
7-1-18) In order to be eligible to run in this class
you cannot of won a race in either a Super Late Model or Limited Late Model in
the past 3 years (Calender Date) at any track.If you move up in class
on any given night, such as Limited or Crate Late Models, to try and earn extra
money because the car count is low or a special event for that class you will
be penalized by having to start the next 2 Sportsman events that you attend on
the rear. This class is intended for the low budgeted and entry level
late model teams. Body Rule: Same as Lucas Oil Series Rear
Deck Height: Deck height 38 inches high all the way across to the bottom of
the t-bar at any time.
Engine A: 604 or 602 GM Crate Must remain
stock as they came from GM. Must remain as listed in GM technical manual p.n.
38958668. Fastrack and Nesmith specs are legal. Rebuilt motors are allowed. Do
not have to be sealed Weight: 604- 2350 lbs 602- 2250 lbs
Engine
B: 362 max CI Weight for Engine B is 2400 lbs
Block: GM
Cast Steel Block. No after market blocks. One or two piece rear seal, no block
lighting, no splayed main caps All Components must remain in stock location No
raised or over sized cam journals No over sized lifters. (.842) Max bore
4.065 Stock stroke 3.480 Rods: Steel Rods - 5.700 Length only I-Beam
Style - press fit pins or floated rods No titanium or aluminum Piston Flat
Top 2 or 4 valve pocket style Oiling Systems: No dry sump No
vacuum pumps No external pumps Crankshaft: Steel stock stroke
(3.480) Min. weight 48lbs. with key & front timing gear Rod and main
journals 0.030 under max. Balancing o.k. Cam - Lifter: Hyd
Only Max Valve Lift .460" (checked at push rod with
no rocker arm) 0.842 lifter diameter only No mushroom lifter No
ceramic lifter No roller lifter Cam bearing journals must be OEM (1.868) Timing
chain only, no gear drive, no belt drive Protest fee
is $150, track retains 30% Heads: Steel only must be GM
head No after market heads allowed Straight plug only Heads must be 23
deg. Angle milling allowed, not to exceed 1 deg. All heads must remain as
cast Steel or stainless steel valves only no titanium or other materials Under
cut stems allowed - no hollow stem Max valve size 2.02/1.60 minimum valve weight
2.02 109 grams 1.60 94 grams Must remain 11/32 stem diam. CC limit on intake
runner 175max 60cc min. Limit on combustion chamber No porting, polishing,
grinding excessive deburring in any breathing area No shot preening, no
media blasting Heads may be deburred on outside areas only Valve spring
pockets may be machined Max spring pressure 105 lbs seat-260 lbs open. It will
be checked on the engine with a LSM gauge. Multi-Angle valve job permitted
machine cut only Max .900 below seat No hand blending allowed All angles
must remain concentric with valve guide May be machine for push rod clearance No
shaft style rockers, stud style only No raised runners Intake Manifold: Intake
must be cast aluminum Porting or polishing not allowed Two piece manifolds
not allowed Carburetor: Any 4150 carburetor Gas or E85 Distributor: Any
ignition No magnetos No traction control No crank triggers Electronic
boxes buy rule $300 Headers: No "Tri-y" style allowed.
All headers must be standard 4 into 1 style. No stainless headers. Headers
buy rule $300 All pumps and pulleys must be mounted in the standard location
on the engine. No bell housing mounted pulleys. No electric fans. No adjustable
suspension devices mounted in the driver's compartment. Brake adjusters are permitted.
Shocks & Suspension: Shocks must be non-adjustable, no external
reservoirs permitted, shocks may be steel or aluminum. Schrader valve ok, no external
reservoirs permitted or turntable knobs. Any shock may be claimed for $200
coil over kit not included. Steel drive or aluminum shafts permitted. Carbon
fiber drive shafts allowed, but not mandatory. They are encouraged for safety,
but not required because of added cost. Standard steel axles only, no titanium
axles. Axles may be solid or gun drilled. No oil filled hubs. Brake rotors
must be steel. No lightened or cut rotors. Brake rotors can be solid or drilled.
Rotors must be 1.25 inch thick, unless using stock style GM brakes. No . 810 rotors.
All suspension components must be made of steel or aluminum, no titanium parts,
no spring bars on rear 4 link Standard slip yoke transmission only. No ball-spline
transmissions. Transmissions must be aluminum or steel, no magnesium transmissions.
Reverse starter mount bell housings permitted, steel or aluminum only
Tire Rule: Both rear tires must be American Racer 56 or Hoosier 1600 or
equivalent being LM40 and Crate 55. Rear tires must punch 55. No tolerance.
If you punch less than 55 before qualifying, you will only have 1 lap to qualify.
No front tire rule, open tire. Tire may be checked for chemical soaking
Random samples may be taken and sent to a lab for testing. If samples are collected,
winnings will be held until test results come back from lab. If lab results
prove tires to be illegal, you will be disqualified. There will be a $300 fine
before you race again at 411 Motor Speedway. All rear
(Hoosier) tires must have a shoulder plate (Anerican Racer 56) must have serial
numbers JDKAX, JDKUX, J4141D, and JKW. Tire
protest: Any car can protest a tire and
have it sent to Blue Ridge for testing for $100. Blue Ridge's decision will be
final. All protests must be at the scales and be made immediately after qualifying
and after the feature. Refusal is an automatic disqualification.
General Rules: 1.Tires must have all numbers and name on the tire.
No grinding off numbers or names. Anytime this is altered, will be illegal.
2. Engine set back will be 6 inches from center of top ball joint to the most
forward spark plug 3. Track reserves the right to delete, change or amend
rules in the interest of competition 4. Any gasoline will be allowed. No alcohol.
E 85 gasoline will be allowed. The specific gravity may not exceed .750 Protest
fee will be $50 5. Weight must be posted on right side A pillar If weight
is not posted, you will only have 1 qualify lap Failure to post correct weight
will result in disqualification Late Model drivers & Sportsman drivers
are not allowed to run in Late Model & Sportsman race both. Must run in only
1 of these Time limit on tear down must be done in a timely manner. Track
official will monitor this. If the official declares that this has not been done
in a timely manner, the track official reserves the right to declare disqualification
The track reserves the right to amend, delete or change rules in the interest
of competition. All protest ( engine, buy rules) with
the exception of a visual is to be done after the race is completed.
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