Auto Barn
Est. 1957
Eagle

Eagle Pontiac 400 4.250in Crank 6.800in H-Beam -6cc Flat Top 4.155in Pistons Rotating Assembly

$3290.73

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Eagle Competition rotating assembly for Pontiac 400. Features a 4.250" forged crank and 4.155" pistons.

Key Features

  • Fits Pontiac 400 engines.
  • Includes a 4.250-inch forged 4340 crankshaft.
  • Comes with 6.800-inch H-beam connecting rods secured by 7/16-inch ARP 8740 bolts.
  • Features 4.155-inch, -6cc flat top forged 4032 Mahle pistons.
  • Includes plasma-moly file-fit piston rings for custom gapping.
  • Equipped with King XP rod and main bearings for reliable lubrication and wear resistance.
This rotating assembly is designed for Pontiac 400 engines. It is not CARB approved and cannot be shipped to California.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042
About this part

Product Details

Eagle is well-known for building robust engine components, and this rotating assembly is a prime example of their commitment to performance. This kit is designed for serious engine builds, whether you're aiming for the drag strip, road course, or building a powerful street machine. It includes everything you need to get your Pontiac 400 engine's bottom end sorted, ready to handle significant power.

At the heart of this assembly is a 4.250-inch forged 4340 crankshaft, chosen for its strength and durability under high stress. Paired with this are 6.800-inch H-beam connecting rods, which are known for their solid construction and ability to withstand demanding use. These rods come with 7/16-inch ARP 8740 bolts, a trusted name in high-strength fasteners, ensuring a secure connection. The pistons are forged 4032 Mahle units, measuring 4.155 inches in diameter with a -6cc flat top design, optimized for performance and compatibility with various cylinder head combinations. They also include plasma-moly file-fit rings, allowing for precise ring gap adjustment to suit your specific build. To top it off, King XP rod and main bearings are included, offering excellent wear resistance and smooth operation for the crankshaft.

This rotating assembly is built for competition use and is ideal for applications involving nitrous oxide or forced induction. Please note that this assembly is not CARB approved and cannot be shipped to California. It's a comprehensive package for anyone looking to build a high-performance Pontiac 400 engine.

Specifications

Brand
Eagle
Manufacturer Part #
515004155
UPC
793348021980

Frequently Asked Questions

Eagle Pontiac 400 4.250in Crank 6.800in H-Beam -6cc Flat Top 4.155in Pistons Rotating Assembly

$3290.73