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Engines and Components› Pistons and Piston Rings
SPORTSMAN RACING PRODUCTS
BBC Domed Piston Set 4.350 Bore +48cc
SKU: S07F 139533
Advanced — 4+ hours
Overview
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Vehicle Symptoms
- Engine knocking under load
- Excessive oil consumption and blue smoke
- Loss of power and compression
- Blow-by (positive crankcase ventilation smoke)
- Misfire at high RPM
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | SPORTSMAN RACING PRODUCTS |
| Part Number | S07F 139533 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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