SEMA 2013: Scat Has New Offerings for Jeep, LS and Model T Engines

Scat Crankshafts is reaching out to the many hardcore Jeep enthusiasts who have yet to accept the new V6 engine in the Wrangler, preferring to stay with the venerable inline-6. The company’s new rotating assembly kit offers 3.905-inch-bore pistons, 6.125-inch 4340 Pro Comp I-beam connecting rods and a 3.895-inch-stroke Pro Comp crankshaft.

“It comes as a fully balanced rotating assembly with bearings,” says Scat owner Tom Lieb.

With 60cc combustion chambers, pistons can be ordered for either a 10.7:1 or 9.6:1 compression ratio. Applications include 1987-2002 Jeep 4.2-liter I6 engines, resulting in a final displacement of 4.6-liter.

Another new rotating kit from Scat is designed to work with the Dart LS Next block and includes a 4340 forged standard-weight crankshaft with 58-tooth reluctor, Pro Sport H-beam connecting rods with 7/16-inch cap screw, premium forged pistons, piston rings and bearings.

On the left is the Scat rotating assembly for the LS Next block, and on the right is a rotating assembly for the Jeep inline-6 engine.

“You can get flat or dished pistons,” adds Lieb, noting that compression ratio could be 13:1 or 9.7:1.

The cranks are available with 4.000-, 4.125- or 4.250-inch strokes, and bore sizes range from 3.810 up to 4.155, resulting in displacement possibilities from 365ci up to 461ci.

One of the more esoteric offerings at the Scat SEMA booth was crank line for the antique Ford Model A/B/C/T vehicles. This is a forged 4340 4-cylinder crank available in 4.000-, 4.250- and 4.500-inch strokes.

“There are still 200,000 of those engines out there,” says Lieb, “and those have 100-year-old cranks.”

Cranks and rods for antique engines are also available from Scat.

Scat also offers a connecting rods and other equipment for those engines, and there’s a full line of crankshafts for the Flathead engine.

Finally, Scat showed off a new big-block Chevy crank with center counterweights and a 2-piece rear seal. They’re available in strokes of 4.250-, 4.375-, 4.500- and 4.750-inch, and all come wiht 2.200-inch rod journals. Complete rotating assemblies with the new center counterweight cranks are also available.

“Lot of boat owners want a center counterweight due to the long hours of running at wide-open throttle,” adds Lieb.

Article Sources

About the author

Mike Magda

Mike Magda is a veteran automotive writer with credits in publications such as Racecar Engineering, Hot Rod, Engine Technology International, Motor Trend, Automobile, Automotive Testing Technology and Professional Motorsport World.
Read My Articles

Horsepower delivered to your inbox.

Build your own custom newsletter with the content you love from EngineLabs, directly to your inbox, absolutely FREE!

Free WordPress Themes
EngineLabs NEWSLETTER - SIGN UP FREE!

We will safeguard your e-mail and only send content you request.

EngineLabs

We'll send you raw engine tech articles, news, features, and videos every week from EngineLabs.

EngineLabs

EngineLabs NEWSLETTER - SIGN UP FREE!

We will safeguard your e-mail and only send content you request.

EngineLabs

Thank you for your subscription.

Subscribe to more FREE Online Magazines!

We think you might like...



Late Model LS Vehicles

Drag Racing

Performance Driving

EngineLabs

Thank you for your subscription.

Subscribe to more FREE Online Magazines!

We think you might like...

  • Late Model LS Vehicles
  • Drag Racing
  • Performance Driving

EngineLabs

Thank you for your subscription.

Thank you for your subscription.

EngineLabs

Thank you for your subscription.

Thank you for your subscription.

Loading