For Proper Stiffy™ Adjusting Procedure.

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A self-contained elastomeric shock that mounts on brackets between the engine and the chassis.  It reduces extreme engine movement and dampens the motion, providing many benefits.  The “Stiffy™” was originally intended for the sport compact market, but can be used for some Hot Rod applications if it is applied correctly.
 

Benefits

Greatly improved off-the-line acceleration

Reduced wheel hop

Improved vehicle stability

Reduced shock loads on driveline components

Smoother shifting

Reduced wear on exhaust system joints

Less vibration transmission to the driver compared to polyurethane motor mounts.

Less shock load, compared to torque straps and chains.

Drifting – helps reduce shock loads when wheels gain traction.

Reduces motor movement – decreases the chance of motor parts rubbing against
the hood and frame.

Specifications

Overall length (mount to mount) = 7 inches (+/-1/4 inch adjustment)

Mounting hole size = 10 mm (.3937 … approx. 3/8 inch)

Maximum stroke = +/-3/8 inch (no preload)

Preload adjustment = 0 – 3/16 inch (max stroke = +/- ¼ inch at max preload)

Maximum shock load (momentary) = 2000 lbs.

Maximum continuous load = 500 lbs.

High quality hardened steel reinforced Teflon Heim joints

Body: 6061-T6 Aluminum

Finish: clear silver anodize

Maximum Recommended HP = 500 with Energy Suspension or Solid Mounts