FE Power Forums
FE Power Forums => FE Technical Forum => Topic started by: blykins on February 05, 2021, 06:07:42 PM
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Trick Flow is in a national shortage for FE heads right now, but when they come back in stock I will be offering them ported.
In stock form, they will flow about 330 cfm @ .600" and start to back up after that, with a 220 cfm exhaust port.
In ported form, they flow 348 @ .600" and go up to 358 cfm @ .750". Exhaust ports flow 225-228.
As measured, intake port volume has went up 5cc. Instead of a 175cc port, they are now right at 180cc.
I will have a set on a 496 here soon. Look forward to seeing the results.
(The vane is still there........)
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Brent, do you have approximate pricing on ported vs unported, fully assembled? Thank you.
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Sure, I'll put pricing in the venders' section.
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Awesome, be interesting to see if the 235* hydro roller strokers like a little more flow.
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are there plans for an all out port job with these heads? also is the porting only available to new head orders or can people send their heads in..
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are there plans for an all out port job with these heads? also is the porting only available to new head orders or can people send their heads in..
If I get an application where we can do a "max effort" port job on one, we may do that, but even in box stock form, they will support 700 hp easily.
I can have existing heads ported.
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are there plans for an all out port job with these heads? also is the porting only available to new head orders or can people send their heads in..
If I get an application where we can do a "max effort" port job on one, we may do that, but even in box stock form, they will support 700 hp easily.
I can have existing heads ported.
how much hp can the BBMs and cj heads support in stock form?
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are there plans for an all out port job with these heads? also is the porting only available to new head orders or can people send their heads in..
If I get an application where we can do a "max effort" port job on one, we may do that, but even in box stock form, they will support 700 hp easily.
I can have existing heads ported.
how much hp can the BBMs and cj heads support in stock form?
A rough rule of thumb is 2 hp per cfm. That will depend on how radical the rest of the engine is, but it's a good rough estimate. A CJ head will flow about 250 cfm, unported with good valves. A BBM head will go somewhere around 280-290 cfm, also unported.