Building an inline 6 Chevy 250 engine

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(Cylinder heads)
(Intake manifolds)
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(GM do Brasil did manufacture multipoint fuel injection (with revised cylinder heads using the separate intake manifold) for the 250 - Brasilian market Chevrolets (Brazil-market Chevrolet Omega and its local produced GMT400 trucks had the 250 (4.1L); production ended in 2001.)  
 
(GM do Brasil did manufacture multipoint fuel injection (with revised cylinder heads using the separate intake manifold) for the 250 - Brasilian market Chevrolets (Brazil-market Chevrolet Omega and its local produced GMT400 trucks had the 250 (4.1L); production ended in 2001.)  
  
The stock intake uses the exhaust manifold to provide heat to the intake, but if aftermarket exhaust headers and/or intake manifolds are used, this feature will be missing (this setup is similar to a stock Jeep 4.0L where a tubular exhaust header is used in lieu of a cast iron manifold). For many applications that will see daily driver duty, an aftermarket intake equipped with hot water heating of the plenum is a plus.  
+
The stock intake uses the exhaust manifold to provide heat to the intake, but if aftermarket exhaust headers and/or intake manifolds are used, this feature will be missing (this setup is similar to a stock Jeep 4.0L (which is the final generation of the AMC inline six used exclusively by Jeep c. 1987-2006) where a tubular exhaust header is used in lieu of a cast iron manifold). For many applications that will see daily driver duty, an aftermarket intake equipped with hot water heating of the plenum is a plus.  
  
 
If making all the power possible is the goal, an intake without hot water heating would be the better choice.
 
If making all the power possible is the goal, an intake without hot water heating would be the better choice.

Revision as of 20:43, 23 October 2017

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