E-MODS RULES

Any tolerances determined by tech man and management decision will be FINAL!

 

• Body and Chassis – EMOD
  1. May have right front brake shut May run 2 ½ inch coil-overs on rear.
  2. UMP or IMCA body rules apply
• Block – EMOD
  1. Any American V-8 cast iron factory production block as supplied by
  2. May use 1 or 2-piece rear main seal block
  3. NO aftermarket blocks of any
  4. NO 400
  5. NO stroking or de-
  6. Block may be zero decked; piston can NOT protrude above deck
  7. Block may be 2 or 4 bolt
  8. NO splayed main
  9. Block may be bored 60
  10. 602 crate motors sealed from GM
  11. No painting
• Crankshaft – EMOD
  1. Factory OEM stock steel or cast
  2. May use aftermarket steel or
  3. Must weigh minimum of 48
  4. May use speedway part # 15-15350 or Scat part # 915-
  5. May balance rotating
  6. May add weight to
  7. NO knife edge
  8. Chevy 48 stroke.
  9. Harmonic balancer, Minimum 75-inch diameter, must be nodular iron OEM style, with Elastomer insert. NO fluid dampers or 1 piece dampers, must be steel.
• Rods – EMOD
  1. Factory stock appearing
  2. NO H
  3. May use floated
  4. Scat or Eagle stock replacement I Beam Rods
• Pistons – EMOD
  1. Any stock appearing 2 or 4 eyebrow piston, may be cast or
  2. The total minimum weight of piston, bearings, caps, rings, rod and wrist pin = 1194
• Camshaft and Lifters – EMOD
  1. 390/410 hydraulic only, Any flat tappet hydraulic lifter allowed. factory firing Order only NO 4/7 swap Timing chain and gear, double roller OK, cam button OK, rear Bearing on cam gear OK. Must maintain 390/410 lift at valve.
• Push Rods – EMOD

 

1. May use 100/1000 longer push

• Rocker Arms – EMOD
  1. Stamped steel 5 ratio 1.52, 1.6 roller tips, may use speedway part # 287-11801 may run 1.5 or 1.6 roller tip rockers steel only
• Oil Pan – EMOD
  1. Any
• Heads – EMOD
  1. OEM factory open chamber ONLY
  2. Valve size 194/150. NO angle milling of
  3. NO Vortex
  4. NO Cleveland’s
  5. NO closed chamber
  6. NO Angle plug heads
  7. Options
     • 350 I spec IMCA or Stock Cast Iron 72cc
  8. 72cc minimum
  9. Pinning of studs
  10. Maximum stud diameter 3/8 inch
  11. Screw in studs OK, 3/8 inch
  12. Guide plates OK
  13. Minim valve stem diameter 11/32, Valve springs maximum diameter 260.
  14. Valve length 900 inch. 3 angle valve cut OK
• Head Gaskets – EMOD
  1. Minimum thickness 40, NO TOLERANCE!!
• Distributor
  1. Must remain factory stock except for the following options:
     • May re-curve
     • May use MSD module part # 547-83641
     • May lock vacuum advance
     • May run hot coil, may use MSD part # 547-8220
     • May use MSD distributor part # 910-12341
     • NO small body distributors
     • NO MSD boxes
     • NO traction
     • May run bronze gear

• Carburetor
  1. Single Feed Allowed CARBs as follows:
     • Holley 4412, must be as it came from manufacturer stock production, except for the following Options:
       • May use 50 cc accelerator
       • May change power
       • May change
       • Must be stock metering

 

• NO high performance metering
• NO billet metering
• Must have stock air horn,
• Must pass All-Tech Raceway NO GO

• Holley 0-1850 SEC. ONLY. Factory stock except for the following options:
  • May use 50cc accelerator
  • May change power
  • May change front
  • May use fuel SINGLE FEED Front metering block must be stock.
  • May run center hung float bowls
  • NO high performance metering
  • NO billet metering
  • May open rear jet orifices to adjust secondary fuel
  • May use rear jet plate SMI part # 85-599 NO rear metering
  • NO center hung float
  • Must pass Waycross Motor Speedway NO GO
  • Must have stock air horn,
• Quadra jet must be OEM factory stock except for the following options:
  • Removal of choke plates, shaft, and choke
  • Side load or front load
  • NO internal drilling to modify metering (iv)602 must run 1850 Holley or 650 HP

(v) Holley 1850 with center float bowls must use Mr. Gasket dual line fuel line max. diameter 3/8inch; no fuel log (No return line No secondary metering block)

• Intake – EMOD
  1. Any steel or aluminum 2 or 4 bbl.
  2. Untouched out of the
  3. NO gasket
  4. NO
  5. Must use only 1 gasket per
  6. NO gasket
  7. May drill and tap intake for bypass cooling hoses if
  8. NO home make or custom
  9. All intakes MUST have legible casting
• Intake and Adapter – EMOD
  1. In the event the carb and intake combination you are using requires an adapter it must be a Maximum thickness of 1 inch including gaskets, it must be a MR GASKET inexpensive NO spacers of any kind.
  2. If carb will bolt to intake without an adapter the maximum thickness of gasket is 5/16
• Fuel Pump – EMOD
  1. Any stock mechanical type
  2. NO piston style
  3. NO vane

 

1. Fuel pump must be mounted in stock OEM location on engine

• Fuel – EMOD
  1. Race Fuel or Pump Gas
• Power Steering Pump – EMOD
  1. Pump must be mounted in stock or close to stock location on front of NO rear fuel pumps.
• Exhaust – EMOD
  1. Any header must run parallel to
• Flywheel, Clutch, Pressure Plate – EMOD
  1. May use hydraulic release
  2. HIGHLY RECOMMENDED BLOW PROOF BELL
  3. No lightened or aluminum flywheels are allowed. The minimum weight of the flywheel is fourteen (14) pounds. Stock clutch and pressure plate. No racing type. May use solid clutch disk (no springs.
• Transmission – EMOD
  1. Automatic must be completely factory stock must have full size torque
  2. Stock type 2400
  3. Bert, Brinn, or triple disk
  4. NO shift
  5. NO power
  6. NO torque converter
  7. Steel Drive Shaft only painted white
  8. 3 or 4 speed with working reverse
  9. Bert, Brinn, or racing type OK; must add 100lbs
• Wheels and Tires – EMOD
  1. H500 or medium 100 only Hoosier 8”
  2. 8” steel wheel only May run beadlocks on all 4 corners; no grooving; NO No treating. Punch rule 45.
  3. No needling