Head Porting Help

considering we do this stuff at the shop, I'll give you a few good tips:

#1. Even on the full port, start with the gasket match
#2. Cut about 1/4" - 3/8" down into the port and match to your gasket
#3. When you're done you'll have a ridge......blend the ridge into the rest of the runner using a sanding roll and blend the runner into the bowl

#4. Shaping the runner is something you should leave to "expert"
#5. Turning the valve boss from a round lump into a oval, please remember "less is more"

#6. You won't polish the intake runner if you don't go all the way down to a flapper wheel..........just go from flute, to 300, to 600 grit and you'll be fine.

#7. DO NOT LEAVE THE DRILL IN ONE SPOT!!!!! Make quick passes and keep the head moving back and forth..........used compressed air to blow your work away so you can see what you're doing.

http://i3.photobucket.com/albums/y72/RgrLee/IMAGE_007.jpg

Your flapper wheel and a polish disc can get a fine polish like seen in the above picture of some 5.7 HEMI heads we sell.

http://i3.photobucket.com/albums/y72/RgrLee/IMAGE_009.jpg

http://i3.photobucket.com/albums/y72/RgrLee/IMAGE_008.jpg

Here you can see that you work from the outside in and shape towards the bowl.................then work from the bowl and work back towards in inlet. If you are going to shape, pay attention to taper as you approach the turn and then taper back OUT towards the seat...........

DO NOT TRY AND GET CUTE WITH THE SHORT SIDE....................esp. if you are just starting!