What gains could I exspect And should I do it.(porting)

[LowBuckX]

What gains could I exspect over what I have now If I ported my Heads.
I mean bowl blending ,port matching ,everything With out going over board.
Also including polishing the exhaust ports.

The reason i ask if I should bother doing it is the motor is in the car and will take a while to do.(YES I KNOW THEY WILL HAVE TO COME OFF) I figure 50+ hours on the port work its self. Would the gains ..all be it free... be worth the time?

These are G2 twisted wedge heads on a 355.Dont know what power is at this point but I ran a 12.77 at 106mph..

[MrQuick]

ask cody, he's the home porting kudo's king. all i have to add is watch them water jackets...360 on TW's. also push rod tubes, real close on the intake side.

[LowBuckX]

I was about to give up and not do it till i got this PM on another board




Whomever told you that our heads are thin is misinformed. All of our port walls are a minimum of .250" thick (The only exception to this statement is the pushrod pinch point, Which is very thin...)
The deck thickness is 9/16".
While it is true we have a 360* water jacket around the sparkplug, That does not mean the head is thin or fragile.
If you have any questions on this head, Please feel free to call me at work ***********ext ++++, Or email me at **BLOCKED**@trickflow.com...
Artie:

[yody]

well if you do a good job and pick up say, 20CFm that would probably be good for about 30 horse or something, forget the actual converter? So yes it would be worth it. But it depends on how the port looks stock. If it is a so-so port to start off wtih, it will be easy to port them and see the gains, but if your working with an already decent port, you have to know more to get the cfm out of them. I would say yes it would be worth it, get the short turns/bowls and valve guide boss worked over and they should pick up good.
Also are you going to port them? 50 hours would seem like an awful long time. Either someone would be taking their sweet time or doing a really extensive job. If you are pretty good at it and have the tools its a no-brainer, if your gonna send them out, then the price offset might outweigh the HP. If it was me, I would either do them myself, or sell them and buy better heads

[LowBuckX]

I was really just going to work on the bowl, Bowl bias, Short side radius and guides. do some slight work on the roof,divider wall and polish the exhaust side.

If I remember correctly the valves are pretty unshrouded by design and the chamber was pretty clean so i may leave them alone or give'em a good polishing too.

[yody]

bowls and guide bosses, is usually where you will get the best effects with minimal work