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Taking a Ford 429/460-based build to a 4.500-inch stroke? This Eagle Competition combination features Mahle forged dished pistons plus a 4.390-inch bore and 4.500-inch stroke. A forged 4340 steel crankshaft and 6.700-inch H-beam connecting rods form the core of the package.
| Brand | Eagle |
|---|---|
| Manufacturer Part Number | 15012030 |
| Product Type | Rotating assembly |
| Engine / Application | Ford big-block 429 / 460 with SCJ-compatible piston configuration |
| Quantity | 1 assembly |
| Crankshaft Stroke | 4.500 in |
| Compression Ratio at 72 cc Chamber | 9.9:1 |
| Compression Ratio at 80 cc Chamber | 9.4:1 |
| Compression Ratio at 84 cc Chamber | 9.1:1 |
| Connecting Rod Length | 6.700 in |
| Cylinder Overbore | 0.030 in |
| Assembly Balanced | No |
| Balance Configuration | Internal |
| Connecting Rod Bolt Diameter | 7/16 in |
| Connecting Rod Bolt Material | ARP8740 |
| Connecting Rod Design | H-beam |
| Connecting Rod Material | Forged 4340 steel |
| Crankshaft Center Counterweights | No |
| Crankshaft Flange Bolt Holes | 6 |
| Crankshaft Main Journal Diameter | 3.000 in |
| Crankshaft Material | Forged 4340 steel |
| Crankshaft Reluctor | No |
| Crankshaft Rod Journal Diameter | 2.200 in |
| Cylinder Bore Diameter | 4.390 in |
| Damper Included | No |
| Flexplate / Flywheel Included | No |
| Main Bearing Type | Hardened, narrowed or chamfered |
| Main Bearings Included | Yes |
| Oil Rail Support Included | No |
| Piston Brand | Mahle |
| Piston Crown Volume | -38 cc |
| Piston Face Type | Inverted dome |
| Piston Material | Forged 4032 aluminum |
| Piston Pin Diameter | 0.990 in |
| Piston Pin Type | Full floating |
| Piston Ring Gap | File-fit |
| Piston Ring Thickness | 1.5 mm / 1.5 mm / 3.0 mm |
| Rod Bearing Type | Hardened, narrowed or chamfered |
| Rod Bearings Included | Yes |
| Second Piston Ring Type | Reverse twist iron |
| Thrust Washer Included | No |
| Top Piston Ring Type | Barrel faced plasma-moly |
| Assembly Type | Competition Assembly |
| Piston Type | Scj Inverted Dome Forged |
| Product Line | Competition |
| Piston Rings Included | Yes |
| Cylinder Head / Piston Configuration | SCJ-compatible dished piston |
Supplied unbalanced. Have a qualified machine shop balance the rotating assembly before use.
Damper and flexplate / flywheel are not included.
Compression ratios are listed by combustion-chamber volume. Actual compression depends on the piston, chamber, deck and head-gasket combination.
