Icon Forged Pistons, Pontiac 400, Flat Top (-4.5cc), .030" Over (Set/8) UEM-IC-890-030-8
IC890-030, IC890-040, IC890-060
Icon (UEM) forged Pontiac pistons — Pontiac 400, flat top (-4.5cc), .030" Over. Forged 2618 aluminum, strong enough for power adders, complete set of 8.
Description
Icon forged Pontiac piston set for Pontiac 400, flat top -4.5cc, finished to a .030" over. Forged aluminum for street/strip and power-adder use; set of 8.
Options
Add a matched ring set for your bore using the ring-set option on this product.
Fishbowl part: UEM-IC-890-030-8
Specifications/Information
| Specifications | |||||
|---|---|---|---|---|---|
| Stock Bore: | 4.120 | Rod Length: | 6.630 | Pin Diameter: | 0.9805 |
| Stroke: | 3.750 | Comp. Ht: | 1.720 | Top Land: | 0.250 |
| Minimum Clearance | OE Deck Height: | 10.250 | Weight Piston/Pin: | 558/163 | |
| Head Type | Flat Top | Effective Head Volume | 4.5cc |
| Ext. Valve Depth | 0.206 | Ext. Valve Dia. | 1.780 |
| Int. Relief Depth | 0.210 | Int. Relief Dia. | 2.330 |
Compression Ratios
71-10.9
87-9.3
96-8.6
Pin Number
.980x3.000
Lock Ring
PRH107-3
Notes
Centered pin. use OE or Edelbrock style heads. Some stock rods may need to be narrowed and balance pad removed.
Details
- UEM-IC-890-030-8
- UEM-IC-890-030-8
- Icon
- New
Categories
Shipping Information
- Item Requires Shipping
- 16.0 lbs.
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