Head, intake porting tools

[Nut124]

I need to do some minor porting work on aluminum head, intake.

I do have long, large carbide burrs and a nice 1/4" die grinder. I am looking for long 1/4" shank spiral band drums, like 5" long, 1" drum, for finishing.

What do you use?

Thanks for helping.

[Nut124]

Never mind. I did go and check my die grinder. Been two years since I last used it.

It has a nice slim neck that allows at least 5" of reach. That is all I need.

Anyway, what grit is good for finishing aluminum intakes?

[swampbuggy]

60 grit is quite popular, it does not leave it as rough as you would think. Mark H.

[Kevin Johnson]

I used to buy belt sander belts and tear them into strips to use with slotted mandrels. Sometimes you can find good buys on odd size belts.

[jeff swisher]

Almost the same as Kevin Johnson I take belt sander belts or other coarse sand paper and cut it into a strip and roll it and super glue it together and make my own tootsie rolls.
Turn the speed down on the grinder.
I have made 36 grit and 1500 grit and many in between for different projects not just cylinder heads. I use my regular mandrels.

[jarmoyp]

https://www.aliexpress.com/item/3304039 ... 4c4dDcq6Yq

[gunt]

https://www.aliexpress.com/item/3304039 ... 4c4dDcq6Yq

have you used these from this company with no issues

[cv67]

also prefer 60 grit overall, dont worry about picture pretty just kniocking things down some
Many dont roll them out at all once they get a good feel for the burr. no longer waste time with the bling stuff its meaningless

[steve cowan]

I find the sanding rolls good for getting walls flatter and you will be surprised when you use a tootsie as a flapper as well it gives a good finish, I struggle with getting ports straight with just a burr but that's just a experience type deal.
The cone shape rolls are good for finishing SSR like on a 23 degree head as I always get a slight flat spot at the apex because it hard to reach correctly, use the cone shape in reverse and you can get a good radius, I final finish with 40 grit on a slotted steel bar at slow speed with a electric drill and inox /wd40 to get a consistent finish.

[jarmoyp]

https://www.aliexpress.com/item/3304039 ... 4c4dDcq6Yq

have you used these from this company with no issues

Yes i have. It works very well.