Manley Performance
Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT
SKU: M004 290840X
Description
Part #: 290840X
Features:
- Lightweight 4340 forged steel crankshaft
- Supplied with our Pro Series Lightweight I-Beam connecting rods with 7/16? ARP 2000 cap screws
- 2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins
- Horsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws
Manley Rotaing Assembly, SBC 355 3.480 STROKE/-4cc FLAT.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Fitment
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Specifications
| Brand | Manley Performance |
| Part Number | M004 290840X |
Buy with Confidence
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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