2021-22 Engine Catalog

ROTATING ASSEMBLIES

Street & Strip Assemblies with Cast Crankshafts Unbalanced Assemblies

For applications up to 500 horsepower. Recommended for use in pump gas, street engines without power adders. Kit includes cast steel crankshaft (use 2-piece rear main seal), bushed "SIR" I-beam connecting rods, Mahle 4032 forged pistons, Perfect Circle rings, and Clevite 77 rod and main bearings. Each kit part number is specified by bore size. Flexplate/flywheel and balancer not included. Requires balancing at a professional machine shop. Eagle Specialty products reserves the right to substitute parts due to availability. Pontiac 400 Compression ratios are based on a 85cc combustion chamber. Requires balancing.

Cubic Inch

Bore Size

Rod Length

Balance Needed

Piston Type

Piston Rings

Comp. Ratio/85cc

Part No.

Stroke

Eagle

EAG524104155 EAG524014155

461 461

4.150" 4.155"

4.250" 4.250"

6.800" 6.800"

Int. Ext.

4032 Mahle/Flat Top -6cc 4032 Mahle/Dished -22cc

File-Fit File-Fit

10.0:1

8.9.5:1 Competition Rotating Assemblies with 4340 Crankshaft Unbalanced Assemblies

“ESP” Competition rotating assemblies are designed for small block engine builds up to 750 horsepower and big block up to 850. They include high-quality brand components to build a durable competition race engine. Rotating assem- blies include "ESP" 4340 forged steel crankshaft, “ESP” H-beam 3-D connect- ing rods, Mahle forged pistons, file-fit piston rings, Speed-Pro or Clevite 77 rod and main bearings. Flexplate/flywheel and balancer not included. Requires balancing at a professional machine shop. Eagle Specialty products reserves the right to substitute parts due to availability. Each kit part number is specified by bore size. Pontiac 400 Compression ratios are based on a 85cc combustion chamber. Requires bal- ancing.

Cubic Inch

Bore Size

Rod Length

Balance Needed

Piston Type

Piston Rings

Comp. Ratio/85cc

Part No.

Stroke

Eagle

EAG515004155

461

4.155"

4.250"

6.800"

Ext.

Mahle Flat-Top -6cc

File-Fit

10.1:1

If you’re looking for performance aluminum roller rocker arms, the PRW Pro Series has you covered. Available for a wide range of engine applications throughout this catalog.

479 2021-22 ENGINE BUILDER CATALOG

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