(6/AP) A-Production AC Cobra (427cid FE) AC Cobra (289 FIA) 1967-69 Chevrolet Camaro (350, 396, 427ci) 1970-72 Chevrolet Camaro (350, 396, 427, 454ci) 1965-67 Chevrolet Corvette (427cid) SVRA GROUP 6 1968-72 Chevrolet Corvette (427/454ci) (350ci with AP and wheels) Description and Class List 1969 Yenko Camaro (427cid) Revision Date 3/2018 Chevrolet Corvette Grand Sport (6.2L V8) DeTomaso Pantera and Mangusta (351cid) Eligibility: 1967-68 Mustang (390FE) 1968 Mustang (428CJ) Recognized series produced Big Bore 1969-70 Mustang (351C or W, 390FE, 428CJ, 429Boss) sports cars and sedans in production prior to 1972, select production sports 1971-72 Mustang (351C, 429CJ) cars over 2.5 litre and production cars Ford Boss 429 from restricted race series. 1965-71 Jaguar XKE (4.2L) Wide Angle or Twin plug head 1965-71 Jaguar XKE SIII V12 (5.4L) Background and philosophy: Shelby Cobra Daytona (289)

Group 6 consists mainly of large Shelby GT-500 (428cid) displacement sports cars and sedans Porsche 911 RSR / IROC (3.0L max) that represent the 'Golden Age' of club racing in the USA. (6/BP) B-Production These cars were the main stay of the SCCA A&B Production and A Sedan AC Cobra (289cid) classes and the over 2 liter Trans-Am AMX Sports Coupe (290/343/360/390cid) series. Cars are expected to be Aston Martin DB5/DB6 (4.0/4.2L) prepared to the SCCA standards that 1963-67 Chevrolet Corvette (327cid) were in effect at the end of the eligibility period (1972) or earlier. 1968-72 Chevrolet Corvette (327/350cid) Similar models prepared to the FIA or 250/275 GT, GTO, GTB, 2+2 (3.0/3.3L) other regulations may be included and Ferrari 365 GTB are classified accordingly. Ferrari 365 GTB/4 Daytona (4.4L) Griffith 200/400 (289cid) Group 6 classes generally follow the SCCA classes of 1972, with some Shelby GT-350 (302, 1968-70) adjustments for cars that were either Shelby GT-350 (289, 1965-67) not recognized by the SCCA or have Sunbeam Tiger (289/302cid) specifications that significantly Jaguar XKE (3.8/4.2L, Weber) change their relative performance. TVR (289/302 cid) Relevant Documents:

 General Rules and Regulations (6/TA) Trans-Am  Group 6 Regulations 1968-72 AMC Javelin  Make and Model Regulations  SVRA Regulations 1967-72 Chevrolet Camaro 1968-72 Dodge Challenger 1968-72 & Boss 302 Notes: 1968-69 Mercury Cougar 1968-72 Plymouth Barracuda Group splitting will be done at the 1967-72 Pontiac Firebird Competition Directors discretion

SVRA reserves the right to add weight, (6/AS) Historic A-Sedan restictors and or reduce tire and wheel sizes to any car deemed over prepared. Chevrolet Chevy II Nova Chevrolet Corvair Definition of “over prepared” Dodge Dart (273cid) Any modifications more advanced than 1965-67 Ford Mustang (289cid) 1972. Ford Falcon (260/289cid) Mercury Comet (289cid) 1966-67 Mercury Cougar (289cid) Plymouth Barracuda and Valiant (271cid) Pontiac GTO and Tempest

Permitted and Required Specifications for all Makes and Models General: All production years of a recognized Make and Model may be updated or backdated within that production range. Most makes and models listed in the Group 6 Regulations have SVRA Make and Model Regulations which list any additional specifications that are allowed. When in conflict, the Group Regulations shall prevail.

SVRA GROUP 6 Engines: Must be standard or optional series, bore and stroke as provided by the manufacturer for Regulations make and model Bore may be increased by .047´ (1.2mm) Revision Date 1/2017 Cylinder head must be series produced by manufacturer for make and model. Stock appearing aftermarket heads of correct material, valve angle and plug angle are permitted. Exhauster headers are free. Group 6 must use approved full tread Internal engine parts are free as long as critical dimensions are st