Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - how to make a 496 bbc
View Single Post
  #4 (permalink)  
Old 02-11-2009, 10:32 AM
454cutlass86 454cutlass86 is offline
Registered User
Join Date: Jan 2009
Location: michigan
Age: 30
Posts: 136
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
here is the info on it


CAT forged 4340 steel crankshafts have been tested and proven to excel in engines producing 1,000 horsepower and 10,000 RPM. The premium 4340 aircraft quality steel with vacuum degassed forging process creates a clean and pure crankshaft. The state-of-the-art CNC machine centers provide superior tolerance.
CAT 4340 crankshafts incorporate these features:

- Computer designed counterweight to reduce main bearing loads.
- CNC machined to provide superior tolerance and journals micro polished to 5 RMS.
- Generous 0.125" journal radii to disperse stress under high loads.
- Each crankshaft has been visually inspected, X-rayed, magnafluxed, and ultrasonic tested to ensure perfection.
- All cranks are heavier at counter weight for easier balancing with various applications.
- Journal surfaces are treated with plasma gas nitrite to HRC60 hardness for superior wear resistance.
Reply With Quote