Speedmaster Ford 289/302 Windsor rotating assembly featuring a precision-ground cast steel crankshaft, 4340 chromoly H-beam connecting rods, and hypereutectic flat-top pistons matched to your bore size.Item Condition: Brand New
| Brand: | Speedmaster |
| Part Number: | PCE290.2003 |
| Part Type: | Engine Rotating Kit |
| Actual Engine CID: | 347 |
| Engine Stroke (in): | 3.400 in. |
| Balanced: | No |
| Pistons Included: | Yes |
| Piston Rings Included: | No |
| Piston Oversize (in): | Varies by bore selected |
| Piston Material: | Hypereutectic aluminum |
| Piston Style: | Flat top, with four valve reliefs |
| Piston Head Volume (cc): | -4.00cc |
| Wrist Pin Style: | Floating |
| Piston Ring Facing Material: | Plasma-moly |
| Crankshaft Included: | Yes |
| Crankshaft Material: | Cast steel |
| Rear Main Seal Style: | 1-piece |
| Engine Balance: | 50 oz. External |
| Connecting Rods Included: | Yes |
| Connecting Rod Material: | Forged 4340 steel |
| Connecting Rod Beam Style: | H-beam |
| Rod Bearings Included: | No |
| Rod Bearing Undersize (in): | Stock |
| Main Bearings Included: | No |
| Main Bearing Undersize (in): | Stock |
| Cam Bearings Included: | No |
| Gaskets Included: | No |
| Oil Pump Included: | No |
| Camshaft Included: | No |
| Lifters Included: | No |
| Timing Chain and Gears Included: | No |
| Plastigage Included: | No |
| Assembly Lubricant Included: | No |
| Quantity: | Sold as a kit. |
Crankshaft
These Speedmaster cast crankshafts are perfect for mildly built street engines or just to replace stock crankshafts that have seen better days. These Speedmaster crankshafts are precision-ground and micro-polished to exacting tolerances.
Connecting Rods
These Speedmaster I-beam connecting rods incorporate all of the best features possible for an I-beam rod, including some strength adders found in H-beam designs. Speedmaster I-beam connecting rods are profiled with clearance for long stroke applications. These connecting rods feature a one-rib cap design for added strength and bearing support, polished beams to eliminate stress risers. Speedmaster cap screw bolts to greatly increase strength and horsepower capabilities.
Speedmaster 'I' Beam Street connecting rods are manufactured from high quality 5140 chromoly steel. The rods are x-rayed and ultrasonically tested with all surfaces shot peened and stress relieved.
Pistons
Hypereutectic pistons with anti-friction skirt coating are manufactured from a aluminum alloy which contains 16 percent silicon for greater strength and wear resistance. By combining the hypereutectic alloy with the permanent mold process, the piston is strong, lightweight, and thermally-efficient. These pistons run tighter piston-to-wall clearances, improving ring seal and longevity. They are ideal for street, bracket racers and oval track.

In 1979, the company was founded with Pete's Performance, which was a small speed workshop. It began by building engines for customers as a hobby, and it has now grown to include selling, assembling, manufacturing and racing high performance engine parts. Over the years, the company has grown into a worldwide high performance powerhouse. Growing from a one-man bricks-and-mortar business; to now a supply chain in which entails more than 400+ people all across the world. Today, Pete's Performance has evolved into the internationally known Speedmaster: which has distribution centres and offices is Sydney, Los Angeles and Shanghai.
WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to https://www.p65warnings.ca.gov/
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This product application notice is regarding the eBay fitment categories allocated to this listing.
Seeing as we sell aftermarket parts; this listing fitment application categories cover both standard replacement and 'common upgrade' options for specific vehicle applications (eBay fitment categories). Therefore, please read the description carefully and understand your application before purchasing this item; as it may not suit your application.
Please note: high performance parts are not direct replacement parts for OEM parts, and may not fit your application as original OEM parts, and may require slight modifications depending on the intended purpose of some applications.