| Cyl. Engine Bore | Years Comp. Ratio | NOTES: | Part No. Sizes | Rings | O.E. Assy. No. | O.E. Casting No. | Head Shape |
L4 135 |
1984-85 |
Hypereutectic Turbo. 2.20" dia. head recess .190" deep. Not destroked. |
H1290 |
2-1.5mm |
4271927 |
4105491 |
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L4 135 |
1986-90 |
Hypereutectic turbo. 2.60" dia head recess .190" deep with two valve reliefs. Lock-rings included. Not destroked. |
H1291 |
2-1.5mm |
4397634 |
4105491 |
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L4 135 |
1986-94 |
Non-turbo. All fuel injected. Carb. Omni and Horizon. Trench valve relief. |
1293 |
2-1.5mm |
4397632 |
4323603 |
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L4 143.4 |
1989-92 |
SOHC DODGE Ram 50. Flat head with three valve reliefs. |
3225** |
2-1.5mm |
MD105377 |
64N-J |
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L4 143.4 |
1993-96 |
4G64 Engine. Dodge Vista, Eagle Summit. Circular 3.10" dia. head recess .150" deep. Mitsubishi Engine. |
3221** |
1-1.2mm |
MD303071 |
64S |
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V6 152 |
1995-98 |
SOHC. Avenger. Flat head with four symetrical valves fits both left and right applications. 6G73 engine. VIN H. |
3232** |
1-1.2mm |
MD309393 |
73C |
L4 153 |
1986-88 |
2.64" dia. head recess .161" deep. Non-turbo, non-EFI. |
1292 |
2-1.5mm |
4397636 |
4323023 |
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L4 153 |
1989-92 |
Turbo 2.8" dia. head recess .280" deep with two valve reliefs. Full floating pin. |
3223** |
2-1.5mm |
4637763 |
4621095 |
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L4 153 |
1989-95 |
Non-turbo. 3.07" dia. head recess .135" deep with two valve reliefs. Vin K. Press fit pin. |
3211 |
2-1.5mm |
4494479 |
4536-293 |
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L4 153 |
1989-95 |
Non-turbo. 3.07" dia. head recess .135" deep with two valve reliefs. Vin K. Press fit pin. Same as 3211 with skirt coating. |
3211C |
2-1.5mm |
4494479 |
4536-293 |
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L4 156 |
1976-87 |
Hypereutectic, destroked .010". Okay for'76-87 Non-turbo, EFI '84-87, and '84-'89 Turbo. F and W engines. 2.75" dia head recess .200" deep. |
H3210 |
2-1.5mm |
Non-turbo: |
None |
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