OPEN CHAMBER DOME GP (GAS PORTED)
These big block pistons are the top choice for drag race applications. Compression Height figured using 9.780 block height with zero deck clearance. Pistons will not work with Edelbrock #6045, 6040, 6055 heads. These pistons have vertical gas ports and backcut top rings and D-Wall second rings (.043, .043, 3mm) and a low tension oil ring.
Includes:
Pin #990-2930-15-51S (150g)
Double spiro locks (#990-042-CS)
Double pin oilers
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OPEN CHAMBER DOME GP (GAS PORTED)
Std Bore: 4.466
Ring package designed for: .043 BACKCUT, .043 D-WALL, 3MM Rings
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| Part # |
CID |
Bore |
Stroke |
Rod
Lgth. |
Block
Ht. |
Comp.
Ht. |
| Head Cubic Centimeters |
| 110cc |
118cc |
124cc |
| Compression Ratio |
|
Dome
Vol. |
Gram
Wt. |
Footnote |
Oversize |
Recom.
Ring Set |
 |
| 243326 |
571 |
4.560 |
4.375 |
6.535 |
9.783 |
1.060 |
15.9 |
14.5 |
13.2 |
43.0 |
547 |
B |
0.094 |
J77008-4560-5 |
|
| 243327 |
581 |
4.600 |
4.375 |
6.535 |
9.783 |
1.060 |
16.0 |
14.7 |
13.9 |
43.0 |
558 |
B |
0.134 |
J77008-4600-5 |
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| 243328 |
584 |
4.610 |
4.375 |
6.535 |
9.783 |
1.060 |
16.2 |
14.8 |
13.9 |
43.0 |
562 |
B |
0.144 |
J77008-4610-5 |
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| 243329 |
588 |
4.625 |
4.375 |
6.535 |
9.783 |
1.060 |
16.3 |
14.9 |
14.0 |
43.0 |
564 |
B |
0.159 |
J77008-4625-5 |
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| 243330 |
555 |
4.560 |
4.250 |
6.535 |
9.780 |
1.120 |
16.0 |
14.6 |
13.7 |
46.0 |
574 |
B |
0.094 |
J77008-4560-5 |
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| 243331 |
565 |
4.600 |
4.250 |
6.535 |
9.780 |
1.120 |
16.3 |
14.8 |
13.9 |
46.0 |
590 |
B |
0.134 |
J77008-4600-5 |
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| 243332 |
567 |
4.610 |
4.250 |
6.535 |
9.780 |
1.120 |
16.3 |
14.9 |
14.0 |
46.0 |
590 |
B |
0.144 |
J77008-4610-5 |
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| 243333 |
571 |
4.625 |
4.250 |
6.535 |
9.780 |
1.120 |
16.4 |
14.9 |
14.0 |
46.0 |
597 |
B |
0.159 |
J77008-4625-5 |
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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.