SEMA 2011: SPEC Adds BOSS 302, 3.7L V6 Clutch to the Lineup

Not all clutches are created equal, and that goes for both manufactures and variances between different vehicle models.  A lesser known fact is that the BOSS 302 Mustangs actually contain three more pressure plate bolts than the normal GT.  It has been rumored that either the high RPMs or vehicle harmonics played a roll into why Ford equipped the BOSS with these extra bolts, but what we do know is that BOSS Mustangs equipped with GT clutches (early equipped race cars) have had problems with the bolts backing out during races.

SPEC Clutch is on top of what is going on though, and will be making BOSS-specific clutch kits.  They will be offering them with their traditional Stage 1-5 upgrades as well as their twin disc.  You can start with their Stage 1 that features an integrally molded carbon kevlar-based, high performance organic lining that offers smooth engagement and excellent life. This lining has an integrally bonded steel backing for strength under high clamp loads and temperatures. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability.

Or if you want something on the extreme, the Stage 5 features a full-metallic disc with the highest possible friction co-efficient. Street drivable but not street-friendly. The hub is solid 12-rivet and the assembly is heat treated for strength and durability. Best for extreme street and drag racing.

Lastly, their Super Twin kits are perfect for street and track use for cars with extreme horsepower and torque.  They feature near stock drivability, all billet construction, and maintenance free operation.  Regardless if you are making 600-1600 lb/ft of torque, SPEC has the right clutch for you.

About the author

Mark Gearhart

In 1995 Mark started photographing drag races at his once local track, Bradenton Motorsports Park. He became hooked and shot virtually every series at the track until 2007 until he moved to California and began working as a writer for Power Automedia. He was the founding editor for its first online magazines, and transitioned into the role of editorial director role in 2014. Retiring from the company in 2016, Mark continues to expand his career as a car builder, automotive enthusiast, and freelance journalist to provide featured content and technical expertise.
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