Offenhauser 39-53 Flathead Ford 4-Ring Pistons, 3.75 Stroke/3.248 Bore
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Please note the following about this product:
- This item is sold as a set.
Q & A (4)
What's in the Box
Original Flathead pistons used four rings, were somewhat round, had questionable wrist pins and locks and were made of cast iron. These pressure-cast aluminum pistons share the four-ring design, but are cam ground and use modern steel wrist pins and real snap rings. They’re a great upgrade when rebuilding your 1939-1953 flathead Ford or Mercury V8 engine.
The original bore size was 3.188", which makes these .060" oversize. Sold in sets of eight.
- Original 4-ring design
- Pressure cast aluminum construction provides great strength and durability
- Precision cam ground
- Modern steel wrist pins
- Snap ring style retainer clips
Item Details3.248" bore, 3.75" stroke
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