350 STANDARD & GP 23º INV. DOME
Specifically designed for circle track and road racing applications, where the rules call for a 9.5:1 piston. GP Series accepts .043, .043, 3mm backcut rings and includes lateral gas ports for optimum ring seal. Standard 350 Series accepts 1/16, 1/16, 3/16 rings.
Includes:
Pin #927-2750-15-51S (130g)
Double Spiro Locks # 927-042-CS
Lateral Gas Ports on GP Series
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350 SERIES GP
Std Bore: 4.000
Ring package designed for: .043, .043, 3MM Rings
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| Part # |
CID |
Bore |
Stroke |
Rod
Lgth. |
Block
Ht. |
Comp.
Ht. |
| Head Cubic Centimeters |
| 58cc |
64cc |
76cc |
| Compression Ratio |
|
Dome
Vol. |
Gram
Wt. |
Footnote |
Oversize |
Recom.
Ring Set |
 |
| 173581 |
357 |
4.030 |
3.500 |
6.125 |
9.000 |
1.125 |
10.1 |
9.5 |
8.4 |
-13.0 |
409 |
A,M |
0.030 |
J70008-4030-5 |
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| 173582 |
357 |
4.030 |
3.500 |
6.000 |
9.000 |
1.250 |
10.1 |
9.5 |
8.4 |
-13.0 |
429 |
A,M |
0.030 |
J70008-4030-5 |
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350 SERIES STANDARD
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 |
| 58cc |
64cc |
76cc |
| Compression Ratio |
|
Dome
Vol. |
Gram
Wt. |
Footnote |
Oversize |
Recom.
Ring Set |
|
| 130968 |
355 |
4.020 |
3.500 |
5.700 |
9.000 |
1.550 |
10.0 |
9.3 |
8.3 |
-14.5 |
465 |
A,M |
0.020 |
J10008-4020-5 |
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| 130969 |
357 |
4.030 |
3.500 |
5.700 |
9.000 |
1.550 |
10.0 |
9.3 |
8.3 |
-14.5 |
472 |
A,M |
0.030 |
J10008-4030-5 |
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| 130974 |
357 |
4.030 |
3.500 |
6.000 |
9.000 |
1.250 |
10.0 |
9.3 |
8.3 |
-14.5 |
427 |
A,M |
0.030 |
J10008-4030-5 |
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Tech and Installation Tips
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Valve Relief Diagram
- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.