| Cyl. Engine Bore | Years Comp. Ratio | NOTES: | Part No. Sizes | Rings | O.E. Assy. No. | O.E. Casting No. | Head Shape |
L6 218 |
1942-54 |
Plymouth flat head. |
1280 |
2-3/32 |
1241622 |
871345 |
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S6 225 |
1960-87 |
Cars through 1983, trucks through 1987. Flat top. |
1250 |
2-5/64 |
2084384 |
1947348 |
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L6 230 |
1934-60 |
Flat head. |
1280 |
2-3/32 |
1241622 |
871345 |
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V6 230 |
1991-94 |
Oval head recess .192" deep. |
3209 |
2-1.5mm |
4556360 |
4448860 |
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L6 237 |
1942-51 |
Desoto. Flat head. |
1281 |
2-3/32 |
1326094 |
1400251 |
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V6 239 |
1986-94 |
Dakota. Available in fuel injected mid-sized trucks and pickups. Flat top with four valve reliefs. 1973 press fit, no lockrings. Use 1990 and earlier rings. |
1266 |
2-5/64 |
4342772 |
4323311 |
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L6 251 |
1942-54 |
Chrysler, Desoto. Flat head. |
1281 |
2-3/32 |
1241646 |
1400251 |
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L6 264 |
1952-60 |
Chrysler, Dodge Truck. Flat head. |
1281 |
2-3/32 |
1326094 |
1400251 |
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