400 / 440 WEDGE FLAT TOP
These pistons feature a completely new design configuration that will accommodate intake valve diameters of up to 2.250". Valve reliefs have been machined to accept long duration, tight lobe separation cam profiles and ring grooves are machined for 1/16, 1/16, 3/16 rings. These pistons are available with either .990" or 1.094" diameter wrist pins (see footnotes).
Includes:
990-2930-15-51S (150g) pins & 990-042-CS double spiro locks (note E)
094-2930-15-51S (170g) pins & 094-037-CS double spiro locks (note H)
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400 Series
Std Bore: 4.342
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 |
| 73cc |
80cc |
90cc |
| Compression Ratio |
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Dome
Vol. |
Gram
Wt. |
Footnote |
Oversize |
Recom.
Ring Set |
 |
| 213460 |
499 |
4.375 |
4.150 |
6.766 |
9.954 |
1.113 |
12.5 |
11.7 |
10.7 |
-5.0 |
481 |
E,M |
0.033 |
J10008-4375-5 |
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440 Series
Std Bore: 4.320
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 |
| 73cc |
80cc |
90cc |
| Compression Ratio |
|
Dome
Vol. |
Gram
Wt. |
Footnote |
Oversize |
Recom.
Ring Set |
|
| 213464 |
493 |
4.350 |
4.150 |
6.766 |
10.699 |
1.858 |
12.5 |
11.7 |
10.7 |
-5.0 |
601 |
H |
0.030 |
J10008-4350-5 |
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| 213462 |
493 |
4.350 |
4.150 |
6.766 |
10.699 |
1.858 |
12.5 |
11.7 |
10.7 |
-5.0 |
613 |
E |
0.030 |
J10008-4350-5 |
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| 213463 |
499 |
4.375 |
4.150 |
6.766 |
10.699 |
1.858 |
12.5 |
11.7 |
10.7 |
-5.0 |
625 |
E,M |
0.055 |
J10008-4375-5 |
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| 213466 |
446 |
4.350 |
3.750 |
6.766 |
10.699 |
2.058 |
11.5 |
10.7 |
9.8 |
-5.0 |
636 |
H,M |
0.030 |
J10008-4350-5 |
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| 213467 |
446 |
4.350 |
3.750 |
6.766 |
10.699 |
2.058 |
11.5 |
10.7 |
9.8 |
-5.0 |
653 |
E,M |
0.030 |
J10008-4350-5 |
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| 213468 |
451 |
4.375 |
3.750 |
6.766 |
10.699 |
2.058 |
11.5 |
10.7 |
9.8 |
-5.0 |
658 |
E |
0.055 |
J10008-4375-5 |
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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.