Is it worth it to port my set of 243s
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#22
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You will be able to get some additional flow if the valve guide area is ported. Again how much is hard to say and I'm not a professional by any means. If they gave you that kind of deal maybe they would be willing to give a similar deal to get them fully ported.
Last edited by LLLosingit; 04-11-2018 at 03:18 PM.
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Originally Posted by LLLosingit
You will be able to get some additional flow if the valve guide area is ported. Again how much is hard to say and I'm not a professional by any means. If they gave you that kind of deal maybe they would be willing to give a similar deal to get them fully ported.
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Originally Posted by LLLosingit
Here is a pic from this thread and yours for comparison. DIY Head Porting: How to shape around valve guides, swirl ramp, and blend seats
#27
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I wouldn't worry about it really and I would never recommend someone use the only heads they have as a first try or heads that just had a nice valve job done. Some people don't have the skill or patience to slowly remove material and take time to blend everything. The idea isn't to just go in and remove material but to massage radiuses to improve flow without hurting velocity. There's only so much you can do without a flow bench to test your results.
You can smooth out any really rough area's/ridges but you don't want a really smooth or polished type finish. I just posted that picture for you to get an idea what a good port job will look like. Compare those two pictures and you can really see how flow would be improved in that area without opening up the port itself.
You can smooth out any really rough area's/ridges but you don't want a really smooth or polished type finish. I just posted that picture for you to get an idea what a good port job will look like. Compare those two pictures and you can really see how flow would be improved in that area without opening up the port itself.
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Originally Posted by LLLosingit
I wouldn't worry about it really and I would never recommend someone use the only heads they have as a first try or heads that just had a nice valve job done. Some people don't have the skill or patience to slowly remove material and take time to blend everything. The idea isn't to just go in and remove material but to massage radiuses to improve flow without hurting velocity. There's only so much you can do without a flow bench to test your results.
You can smooth out any really rough area's/ridges but you don't want a really smooth or polished type finish. I just posted that picture for you to get an idea what a good port job will look like. Compare those two pictures and you can really see how flow would be improved in that area without opening up the port itself.
You can smooth out any really rough area's/ridges but you don't want a really smooth or polished type finish. I just posted that picture for you to get an idea what a good port job will look like. Compare those two pictures and you can really see how flow would be improved in that area without opening up the port itself.
#29
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Never hurts to practice for the next time. There is some work you can do easily and you can tape off the valve seats to protect them. You're really not going to see huge gains from it but as long as you just do some blending you're not going to hurt power.
Some gains can be had with port matching the intake/exhaust to the heads, I've done it many times on SBC and BBC aluminum intakes/heads but haven't looked to see if it's needed on any of my LS based engines.
Some gains can be had with port matching the intake/exhaust to the heads, I've done it many times on SBC and BBC aluminum intakes/heads but haven't looked to see if it's needed on any of my LS based engines.
#30
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I wouldn't recommend any real portings on in.or ex.runners, to burr some sharp edges in flow might be ok, but for more, there is manual skill needed and what about making each runner the same like the other in volume and shape, thats very difficult by handish make...
Greetz
Ron
Greetz
Ron
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Originally Posted by A.R. Shale Targa
Send them to Katech for a $500 CNC Special they have going
Search my 853 thread for pics and flow numbers
Search my 853 thread for pics and flow numbers
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Originally Posted by Kamehameha
I was wondering the same thing if it would be porting or not. After going through numerous threads, everyone always has gains from the porting.