Building an inline 6 Chevy 250 engine
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The Chevy inline 6 has been around in one version or another since 1929 until 1988 in domestic vehicles. The Gen 3 (1962-'88) straight 6 250 cid engine was brought out in 1966. It has a 0.280" longer stroke (3.53") and the same bore (3.875") as the 230 cid straight 6. It boasts a 7 main bearing bottom end- quite an improvement over the Gen 2 inline's 4 main bearings. | The Chevy inline 6 has been around in one version or another since 1929 until 1988 in domestic vehicles. The Gen 3 (1962-'88) straight 6 250 cid engine was brought out in 1966. It has a 0.280" longer stroke (3.53") and the same bore (3.875") as the 230 cid straight 6. It boasts a 7 main bearing bottom end- quite an improvement over the Gen 2 inline's 4 main bearings. | ||
| − | == Some things to consider == | + | ==Some things to consider== |
Building a straight 6 250 is not any harder to do than any other inline 6, be it a Ford or Chevy, GMC, etc. Parts aren't as common for the inline 250 as they are for V8's, but as one will see, there are plenty of info and quite a few suppliers for parts, as well as places that cater to almost nothing but the Chevy inline 6 engines. | Building a straight 6 250 is not any harder to do than any other inline 6, be it a Ford or Chevy, GMC, etc. Parts aren't as common for the inline 250 as they are for V8's, but as one will see, there are plenty of info and quite a few suppliers for parts, as well as places that cater to almost nothing but the Chevy inline 6 engines. | ||
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| − | ==Intake | + | ==Intake manifolds== |
| + | The integrated intake head isn't well suited for performance duty. about all that can be done is the 1 barrel can be swapped for a 2 barrel by using an adaptor. Not the hot ticket. | ||
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| + | Using the earlier head from a 250 or 230 Inline Chevy 6 offers a better platform. | ||
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| + | [[File:Offy intake.jpg|thumb|350px|left|Offenhauser 3 x 1 barrel aluminum intake for the Chevy inline 6]] | ||
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==Exhaust manifolds and headers== | ==Exhaust manifolds and headers== | ||
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==Parts suppliers== | ==Parts suppliers== | ||
| − | *[http://www.stoveboltengineco.com/ Langdon' | + | *[http://www.stoveboltengineco.com/ Langdon'ss Stovebolt Engine Co.] |
*[http://www.cliffordperformance.net/index.html Clifford Performance] | *[http://www.cliffordperformance.net/index.html Clifford Performance] | ||
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