V6 Chevy 90 degree engines
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The cam and distributors are specific to these two engines and they cannot be interchanged with the 4.3L V6 engine. | The cam and distributors are specific to these two engines and they cannot be interchanged with the 4.3L V6 engine. | ||
− | The 4.3L V6 engine has an even-fire sequence. This is accomplished by having a larger 30º offset on the rod journal pairs. To gain back the strength that the wider offset takes away from the crank, the rod journal diameter is larger than the other V6 engines and also larger than the SBC, at 2.25", which makes them unique among the Chevy V6 and V8 engines. | + | The 4.3L V6 engine has an even-fire sequence, occurring 120 degrees apart. This is accomplished by having a larger 30º offset on the rod journal pairs. To gain back the strength that the wider offset takes away from the crank, the rod journal diameter is larger than the other V6 engines and also larger than the SBC, at 2.25", which makes them unique among the Chevy V6 and V8 engines. |
==Intake manifolds== | ==Intake manifolds== |