2017 360 Economy Modified

Centerville Super Speedway

Option 1

1. Engine: 360 Maximum cubic inches with GM block and stock stroke 3.48 or 3.50 cranks. Flat top Pistons. Ford 361 (351 block and stroke). Ford and Mopar must use OEM parts only. Cast iron OEM blocks only! NO aluminum blocks. No Dry sump motors. Lift Rule: .480” @ valve with .030 lash. Roller rockers allowed. OK to run shaft rockers.

No roller camshafts or lifters. No bleed-down lifters.

2. Cast iron heads only. Vortec heads ok. 2.02” intake and 1.60” exhaust valves maximum. Angle milling ok. Aftermarket steel heads allowed. Double hump heads ok. 23 degree heads only. Angle plugs allowed. Porting or polishing of heads or intake. OK. Match porting of intake to heads. No aluminum heads. Cast iron heads only allowed

3. Alcohol or racing fuel ok. Maximum carburetor 750 CFM.

4. No mismatching of engine parts. GM to GM and Ford to Ford, etc.

5. No Aluminum parts except intake manifold, pulleys, valve covers, radiators and water pump. Rockers

6. Belt drive pumps ok

7. Weight 2400 lbs. with car and driver following the race on CSS Scales. No Tolerance!

8. Tires: 8” steel wheel – I.M.C.A. Modified Tires OK. KK-704 or KK 704 Short American Racers I.M.C.A. Hoosier Tires OK. Southwest Speed 8” Tires – G60 Dirt American Racer Tire, Hoosier F53-F75-970-880 Asphalt 8” Stamped Tires only. Grooving ok.

9. Steel Wheel only. 10” maximum. Bead locks. OK

10. Transmission. Reverse must work.. BERT, BRINN OR FALCON allowed.

11. No direct drive. Car must have working starter and must be able to start on its battery power. Must have blow proof bell housing on standard transmissions.

12. Mini clutches ok.

13. Electronic MSD ignition or Soft Touch Rev Limiter, 7000 Chip.

14. Driver’s floor must be made of 16-guage steel – NO aluminum in the floors allowed.

15. Please refer to General Rules for additional information. 

16. Claim: NO CLAIM – NO MOTOR CLAIM – NO CAR CLAIM – No Ignition Claim

17. Final notes: Drivers, if it does NOT say it, that doesn’t mean you can do it. Call CSS TECH before you do anything to your cars that might be questionable.

All Drivers must be present at the 2017 Drivers Awards Banquet to receive Awards.

For More Information: www.centervillespeedway.com or 479-970-0160 

Like us on Centerville  Super Speedway Face Book Page or friend request Wayne Tidwell & or Lloyd Tidwell

Option 2 rules

1. Engine: 360 Maximum cubic inches with GM block and stock stroke 3.48 or 3.50 cranks. Flat top Pistons. Ford 361 (351 block and stroke). Ford and Mopar must use OEM parts only. Cast iron OEM blocks only! NO aluminum blocks. No Dry sump motors. no Lift Rule: Roller rockers allowed. OK to run shaft rockers. roller camshafts or lifters ok .

2. Cast iron heads only. Vortec heads ok. 2.02” intake and 1.60” exhaust valves maximum. Angle milling ok. Aftermarket steel heads allowed. Double hump heads ok. 23 degree heads only. Angle plugs allowed. Porting or polishing of heads or intake. OK. Match porting of intake to heads. No aluminum heads. Cast iron heads only allowed

3. Alcohol or racing fuel ok. Maximum carburetor 500 CFM or 750 CFM with secondary unhooked not working Must pass tracks drop gauge top and bottom 

4. No mismatching of engine parts. GM to GM and Ford to Ford, etc.

5. No Aluminum parts except intake manifold, pulleys, valve covers, radiators and water pump. Rockers 

6. belt drives fuel pumps ok.

7. Weight 2550 lbs. with 50# in front of motor plate with car and driver following the race on CSS Scales. No Tolerance!

8. Tires: 8” steel wheel – I.M.C.A. Modified Tires OK. KK-704 or KK 704 Short American Racers I.M.C.A. Hoosier Tires OK. Southwest Speed 8” Tires – G60 Dirt American Racer Tire, Hoosier F53-F75-970-880 Asphalt 8” Stamped Tires only. Grooving ok.

9. Steel Wheel only. 10” maximum. Bead locks. OK

10. Transmission. Reverse must work.. BERT, BRINN OR FALCON allowed.

11. No direct drive. Car must have working starter reverse mount ok and must be able to start on its battery power. Must have blow proof bell housing on standard transmissions.

12. Mini clutches ok.

13. Electronic MSD ignition or Soft Touch Rev Limiter, 7000 Chip.

14. Driver’s floor must be made of 16-guage steel – NO aluminum in the floors allowed.

15. Please refer to General Rules for additional information. 

16. Claim: NO CLAIM – NO MOTOR CLAIM – NO CAR CLAIM – No Ignition Claim

17. Final notes: Drivers, if it does NOT say it, that doesn’t mean you can do it.
Call CSS TECH before you do anything to your cars that might be questionable.

All Drivers must be present at the 2017 Drivers Awards Banquet to receive
Awards. And must run at least 60% of the Chase weeks 

 Option  3 rules 

1. Engine: 312 Maximum cubic inches with GM block and stock stroke for that block. Flat top Pistons. Ford and Mopar must use OEM parts only. Cast iron OEM blocks only! NO aluminum blocks. No Dry sump motors. no Lift Rule: Roller rockers allowed. OK to run shaft rockers. roller camshafts or lifters ok .

2. Cast iron heads only. Vortec heads ok. 2.02” intake and 1.60” exhaust valves maximum. Angle milling ok. Aftermarket steel heads allowed. Double hump heads ok. 23 degree heads only. Angle plugs allowed. Porting or polishing of heads or intake. OK. Match porting of intake to heads. No aluminum heads. Cast iron heads only allowed

3. Alcohol or racing fuel ok. Maximum carburetor 500 CFM. Must pass tracks drop gauge top and bottom or 750 CFM with secondary unhooked not working 

4. No mismatching of engine parts. GM to GM and Ford to Ford, etc.

5. No Aluminum parts except intake manifold, pulleys, valve covers, radiators and water pump. Rockers 

6. belt drive tandem pump ok

7. Weight 2550 lbs. with 50# in front of motor plate with car and driver following the race on CSS Scales. No Tolerance!

8. Tires: 8” steel wheel – I.M.C.A. Modified Tires OK. KK-704 or KK 704 Short American Racers I.M.C.A. Hoosier Tires OK. Southwest Speed 8” Tires – G60 Dirt American Racer Tire, Hoosier F53-F75-970-880 Asphalt 8” Stamped Tires only. Grooving ok.

9. Steel Wheel only. 10” maximum. Bead locks. OK

10. Transmission. Reverse must work.. BERT, BRINN OR FALCON allowed.

11. No direct drive. Car must have working starter reverse mount ok and must be able to start on its battery power. Must have blow proof bell housing on standard transmissions.

12. Mini clutches ok.

13. No Chip.

14. Driver’s floor must be made of 16-guage steel – NO aluminum in the floors allowed.

15. Please refer to General Rules for additional information. 

16. Claim: NO CLAIM – NO MOTOR CLAIM – NO CAR CLAIM – No Ignition Claim

17. Final notes: Drivers, if it does NOT say it, that doesn’t mean you can do it. Call CSS TECH before you do anything to your cars that might be questionable.

All Drivers must be present at the 2017 Drivers Awards Banquet to receive Awards. And must run at least 60% of the Chase weeks