BOSS 302 Dome
- Ideal for high performance street/strip or vintage road racing.
- Forged from Premium 4032 aluminum alloy
- Forced Pin Oiler for increased wrist pin lubrication
- Solid dome w/ special profile fits small chamber Australian 302 2V head. Can also be milled flat for use with aftermarket heads
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- CNC Machined ring grooves accept 1/16, 1/16, 3/16 rings (Rings Sold Separately)
- .912 x 2.750 x .140 straight wall wrist pin (123g), pin fitting and double spiro locks included
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Boss 302 Series
Std Bore: 4.000
Ring package designed for: 1/16, 1/16, 3/16 Rings
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| Part # |
CID |
Bore |
Stroke |
Rod
Lgth. |
Block
Ht. |
Comp.
Ht. |
| Head Cubic Centimeters |
| 52cc |
60cc |
74cc |
| Compression Ratio |
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Dome
Vol. |
Gram
Wt. |
Footnote |
Oversize |
Recom.
Ring Set |
 |
| 289554 |
304 |
4.020 |
3.000 |
5.155 |
8.195 |
1.540 |
11.9 |
10.5 |
8.9 |
3.5cc |
536 |
D,S,M |
0.020 |
S100S8-4020-5 |
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| 289555 |
306 |
4.030 |
3.000 |
5.155 |
8.195 |
1.540 |
11.9 |
10.6 |
8.9 |
3.5cc |
540 |
D,S |
0.030 |
S100S8-4030-5 |
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- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.