Got some gt40ps And intake
- Thread starter Stevejr
- Start date
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I've played around a good bit with those old OEM iron heads 
Here is a thing or two to keep in mind about em
KNOW ... what you can expect
or
What you can't except out of em
TMoss and Thumper have realistic info about em on their sites
Smoothing and polishing is not gonna do all that much
Matter of fact ... Ya DON'T want to polish up i ports TOO much
as it can cause the fuel to puddle
Just a basic tid bit of info is this
The e ports of ALL OEM iron heads just SUCK
That is where most of your focus needs to be made
but
It will take more than sanding rolls and a Mickey Mouse Dremel
That being said ... I'll leave you with what I feel is most important :Word:
If you are not careful
By the time you buy
compressor
die grinder
porting burs
valve job
valve springs
and all the rest
You can easily have dumpped close to the amount of money you would
have in a nice set of much better flowing Aluminum heads
You used to be able to get some good info from the Standard Abrasives
site but I don't know if it is still around
You do have to do your research to know what
or more importantly
What NOT to do
Or you can grind too much and poke through a water jacket
and
You can remove material from some places which is a No No
Bottom Line Is
Yes ... You can improve their performance
but
Only you could say if its worth it
Don't expect too much or sink too much cash in em
Grady
Here is a thing or two to keep in mind about em
KNOW ... what you can expect
or
What you can't except out of em
TMoss and Thumper have realistic info about em on their sites
Smoothing and polishing is not gonna do all that much
Matter of fact ... Ya DON'T want to polish up i ports TOO much
as it can cause the fuel to puddle
Just a basic tid bit of info is this
The e ports of ALL OEM iron heads just SUCK
That is where most of your focus needs to be made
but
It will take more than sanding rolls and a Mickey Mouse Dremel
That being said ... I'll leave you with what I feel is most important :Word:
If you are not careful
By the time you buy
compressor
die grinder
porting burs
valve job
valve springs
and all the rest
You can easily have dumpped close to the amount of money you would
have in a nice set of much better flowing Aluminum heads
You used to be able to get some good info from the Standard Abrasives
site but I don't know if it is still around
You do have to do your research to know what
or more importantly
What NOT to do
Or you can grind too much and poke through a water jacket
and
You can remove material from some places which is a No No
Bottom Line Is
Yes ... You can improve their performance
but
Only you could say if its worth it
Don't expect too much or sink too much cash in em
Grady
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