Building an inline 6 Chevy 250 engine

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== General ==
 
== General ==
Building a straight 6 250 can be tricky, and hard to do. Parts arent as common for the inline 250 as they are for V8's, as the inline was seen more as a "mom's engine" then a high powered torque monster, which is why there aren't as many parts. Luckily, there are parts out there. However, expect to pay a bit more for an intake and headers.  
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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.  
  
If built properly, an I6 can chew V8's up all day long. However, this usually requires a cam, dual intake carburetors, head work, headers, and the works.
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The inline 6 Chevy 250 should not be compared to a SBC engine. They share practically no parts w/the V8 engines. Because of this fact, expect it to cost more per horsepower than a Chevy V8. The reward is this is not a "belly button" engine; instead it is considered "old school" and caries cred because of what it isn't as much as for what it is.
  
When building an Inline engine, be careful not to crack your block. The inline engines are prone to cracking if torqued down incorrectly.  
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To the right person, building a 250 Chevy 6 can be just as rewarding as any other engine, and if parts are selected in a coordinated manner and the engine used in a way that accentuates its strong suits- like dependability and good lower RPM torque production for its size- a very satisfying result can be had.
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It's a fool's mission to build a NA inline 6 like the Chevy 250 expecting to run amok on all the SBC and SBFs out there. Not only will the results be very humbling, but the amount of money that would need to be spent in order to go toe-to-toe with a SBC 350 will break most people's budget all to hell. So instead of trying to beat the world, it may be much more satisfying to build a Chevy 250 to make around 0.8-1 HP/cid, and revel in the uniqueness of it and enjoy as torquey, strong running engine that has a sound and look all of its own.
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==Cylinder heads
  
  

Revision as of 00:29, 2 April 2012

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