USRA Modified RULES APPLY WITH THESE EXCEPTIONS

360 Modified Rules for 2011 These rules are good at Outlaw Motor Speedway, Tri-State Speedway and Salina Highbanks Speedway (NOTE: These rules may be adjusted for clarification or typos over the next few weeks. Please be patient with us. Last updated 12/21/10) IMCA SPORT-MODS MAY RUN UNDER IMCA SPORT-MOD RULES WITH THIS CLASS USRA Modified RULES APPLY WITH THESE EXCEPTIONS SAFETY 1. Raceceivers are MANDATORY. You can purchase one from Dirt Track Specialties in Ft. Smith at 479-434-3340, Race Ready at 1-888-658-8481 (www.getraceready.com) or RH2 at 1-877-357-RACE (www.RH2way.com). 2. Please refer to General Rules for additional information, safety information and fuel cell information. BODY and ELIGIBILITY 3. Weight 2500 lbs. with car and driver after race. 4. See diagram below for panel and body dimensions. 5. Drivers floor must be made of 16-gauge steel or aluminum. 6. 6” maximum spoiler optional. ENGINE 7. No mismatching of engine parts. GM to GM and Ford to Ford, etc. 8. Engines allowed: a. GM—360 Maximum cubic inch with GM block and stock stroke 3.50 crank (max). Flat top pistons. No 400 blocks. b. Ford 361 (351 block and stroke). Must use OEM parts only. No SVO or W2 performance parts allowed. c. Mopar must use OEM parts only. 9. Heads—OEM cast-iron heads or SR & GM vortec heads allowed. The world products part/casting #I-052, I-058, and E Q Vortec 906 Heads are the only legal after market head allowed ...