
| Cyl. Engine Bore | Years Comp. Ratio | NOTES: | Part No. Sizes | Rings | O.E. Assy. No. | O.E. Casting No. | Head Shape |
V6 181 |
1982-87 |
LK9 engine. Flat head. 1986 high deck engines, used in "C" cars only. |
1734 |
2-5/64 |
25511557 |
25509349 |
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V6 181 |
1985-88 |
Low deck M.F.I., VIN L. 2.49" dia. head recess .160" deep. LN7 engine. |
1736 |
2-5/64 |
25522584 |
25521607 |
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V6 191 |
1988-95 |
2.88" dia. head recess .247" deep. |
1496 |
2-1.5mm |
10070183 |
10087662 |
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V6 191 |
1988-95 |
Coated skirt, 2.88" dia. head recess .247" deep. |
1496C |
2-1.5mm |
10070183 |
10087662 |
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V6 196 |
1978-79 |
2.79" dia. head recess .094" deep. Discontinued upon depletion of stock. |
1733 |
2-5/64 |
1259577 |
1257014 |
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V6 204 |
1989-93 |
2.83" dia. head recess .123" deep. |
1743 |
2-1.5mm |
25535356 |
25532084 |
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V8 215 |
1961-63 |
2.812" dia. head recess .156" deep. |
1718 |
2-5/64 |
1389184 |
1193816 |
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V8 215 |
1961-63 |
2.68" dia. head recess .091" deep. Higher compression version of 1718. From factory only. |
9598 |
2-5/64 |
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V6 225 |
1964-67 |
3.06" dia. head recess .23" deep. |
1724 |
2-5/64 |
1399524 |
1357553 |
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