2020 Small Block Penalty Box Race Sign Up

Penalty Box

Nominal Car (TDC) Tenths E.T.
LA 318-2 stock with 2.76 gears in a 3300 lb car (no driver) 100 % street at sea level (dual exh. ok) - 15.9

Weight 3300 lbs no driver. Add + / Subtract - .1 per 100lb (round to the nearest 100) always no driver.

Gear (2.45-2.99) = TDC (3.00-3.49) = -.3 (3.50-3.99) = -.5 (4.00-4.49) = -.7

Tires Height 25 inch - 28.5 inch =TDC 29 inch or more + .2 any D.O.T. tire OK

Vans/Trucks + .3 for wind resistance on any full size Van or Pickup (dakota/durango is NOT full size)

4x4 + .2 for 4x4's without loc-out hubs

Elevation
+.2 every 1000 ft. (use front numeral, no rounding) Do not figure air quality

Blocks/Cubic Inches
318 318 cubic inches is base (TDC)
273 +.6 for using a 273
340 -.5 for using a 340 block
360 -.6 for using a 360 block
Magnums subtract an extra -.3 from the C.I. section if you are using a magnum block

Engine Build (LA 318 2bbl is Base Engine)
Carb/intake -.4 be it a 4bbl, 6bbl, 2x4, FI, 360 2bbl, or anything other than factory 318 2bbl.

Exhaust -.4 for headers

Heads -.4 for worked 318 heads or stock 340/360/stock magnum heads
-.6 for worked 340/360/magnum heads (EQ's fit here)
-.8 for aluminum or W-2 type heads

Cam 318 2bbl cam is base (factory magnum cams fit here)
-.4 for ugraded cams of .480 lift/229 duration @50 or less
-.6 for upgraded cams .481 lift/230 duration @50 or more

Pistons -.4 for any overbore. Has to run pump gas of 93 octane or less to be street

Cranks 273 -340 Must be 3.31 factory stroke. 360 3.58.
-.5 for stroker cranks, this includes stock stroke crank in a block that did not use it from factory.

Tranny
904 904 is what is assumed in the TDC (nominal) car.
727 +.3 tenths for 727
OD/998/999 no penalty. Weight of O.D., and lock up with stock converters offset low 1st gear

Converter -.4 for upgraded street convert of 2200-2900 stall
-.7 for upgraded super street converter of 3000 stall or more

Valve body -.2 for manual valve body

Manual -.3 if you have a clutch

Clarifications
1) Car must be 100% street and remain that way at time trial. Street means pump gas, and cruising 1/2
hour at 55 mph on summer day is no problem. No open headers/slicks.
2) No power adders (boost/nitrous/high octane fuel)
3)Definition of "worked heads" mentioned, means milling over .010, any porting/gasketmatching or
larger valves.
4) Traction devices including DOT drag radials are ok. No Penalty
5) Hood scoops and fresh air are OK. No Penalty
6) Any ignition upgrades are OK. No Penalty
7) Honesty, just be honest. No purse, so keep your integrity
8) + is add. - is subtract
9)1/8 mile conversion factor is 1.5835