Head porting
We have discussed porting of the Cobalt head. If anyone is interested in the porting service, we are more than happy to work with that individual. They have not had the opporyunity to flow-bench test a stock Cobalt head, nor have they had the chance to port one. That "one" individual will get a great deal on the price and a great port job. The stock head will be flow bench tested before any work is started and definitely after the porting. We are still working out the details on prices for various "stages". If you are interested in the head porting service, give us a call: (425)251-0329.
This deal is available on a first come first serve basis.
Thanks everyone.
This deal is available on a first come first serve basis.
Thanks everyone.
Let me know.
Well, as a point of reference, my stock head flowed 267 cfm on the intake side, and 161 cfm on the exhaust side.
Intake @ 28" water
-Lift | CFM
.100"|90.06
.200"|174.87
.300"|234.15
.400"|260.95
.500"|267.60
Exhaust @ 28" water
-Lift | CFM
.100"|82.78
.200"|145.41
.300"|158.20
.400"|159.80
.500"|161.39
After porting my head, it flowed 296 cfm on the intake side, and 217 cfm exhaust.
Intake @ 28" water
-Lift | CFM
.100"|90.06
.200"|174.87
.300"|234.15
.400"|260.95
.500"|267.60
Exhaust @ 28" water
-Lift | CFM
.100"|82.78
.200"|145.41
.300"|158.20
.400"|159.80
.500"|161.39
After porting my head, it flowed 296 cfm on the intake side, and 217 cfm exhaust.
It's a decent flowing stock head, exhaust needs some work, but hell nothing is perfect stock,.
Well, as a point of reference, my stock head flowed 267 cfm on the intake side, and 161 cfm on the exhaust side.
Intake @ 28" water
-Lift | CFM
.100"|90.06
.200"|174.87
.300"|234.15
.400"|260.95
.500"|267.60
Exhaust @ 28" water
-Lift | CFM
.100"|82.78
.200"|145.41
.300"|158.20
.400"|159.80
.500"|161.39
After porting my head, it flowed 296 cfm on the intake side, and 217 cfm exhaust.
Intake @ 28" water
-Lift | CFM
.100"|90.06
.200"|174.87
.300"|234.15
.400"|260.95
.500"|267.60
Exhaust @ 28" water
-Lift | CFM
.100"|82.78
.200"|145.41
.300"|158.20
.400"|159.80
.500"|161.39
After porting my head, it flowed 296 cfm on the intake side, and 217 cfm exhaust.
It's a decent flowing stock head, exhaust needs some work, but hell nothing is perfect stock,.
Last edited by 06blackg85ss; Jan 14, 2009 at 12:36 PM. Reason: Automerged Doublepost
its the L61...opposed to the LSJ 2.0l. the engine is destroked, and im sure the head doesn't flow as well, but i dont think anything is radically different between the two heads. just the valvetrain itself and the head probably wont flow as much.
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Joined: 07-06-08
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From: Catlett/ newport news VA
Valvetrain is same measurements wise, difference is in valve material
Thread Starter
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Joined: 05-11-06
Posts: 967
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From: Auburn, WA
Sorry about that. I missed your question above. Right now we have a head on the way from the 2.0L TC. Porting can definitely be done on the 2.2 but they are not offering any deal for it at this time. They want to focus on one project for now. This may change further down the road.
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