Home 241 head Porting
#24
This is what I used (mini die grinder). Its pneumatic so you need a decent compressor. The bits are sold at different places, i would google it, I dont think im supposed to put links in here. I also got a porting kit with sanding rolls etc... Search here for home porting or DIY porting, there is some good info.
Here is what the carbide bits and sanding rolls look like.
#27
Why? All the research I had done eveyone was polishing the exahust to keep carbon buildup to a minimum. The intake should never be polished, for fuel atomization. I finished the intake with 80grit sanding rolls, some would go to 120grit
Last edited by Mart00SS; 05-11-2010 at 07:22 AM.
#30
10 Second Club
iTrader: (2)
Contrads they look really good. And you didn't just hog them out. Plus your flow numbers
are pretty good. I had similar flowing 241's with a Comp 216/220 114lsa cam and went 11.78 @ 116 mph in a full weight WS6 A4 and a Vig.3600 plus the usual bolt ons.
Best of luck and very nice. You don't always need 300+cfm and a big cam to run well into
the 11's.
are pretty good. I had similar flowing 241's with a Comp 216/220 114lsa cam and went 11.78 @ 116 mph in a full weight WS6 A4 and a Vig.3600 plus the usual bolt ons.
Best of luck and very nice. You don't always need 300+cfm and a big cam to run well into
the 11's.
#34
absolutely awesome job, thanks for the link to this page, fantastic work, got to spend the time to get the results and this was a job that definatly has the good results, yeh i was told not to really touch the intake side due to what you mentioned with the atomisation, just to take the rough edges off rather than smooth the intake ports, but to do what you've done with the exhaust ports as you obviously want the exhaust gases to escape as quick as possible.
#37
TECH Addict
iTrader: (59)
Join Date: Oct 2004
Location: Vance, Alabama
Posts: 2,357
Likes: 0
Received 0 Likes
on
0 Posts
Take a pick and knock that last thread thats hanging on the pedistal bolt hole out. Judging by the pix the port looks 212-215cc in size. Everything esle looks good for a home portjob.
#38
TECH Fanatic
iTrader: (1)
Man, I really need to get off the fence and dive into my heads. I picked up some 241 heads and 5.3 heads to play with a long time ago, but I keep wavering. There's no way I can afford any of the aftermarket castings and the rest of the mods I need, so I should just go for it.
Can't wait to see how these perform for you. Congrats on a job well done!
Can't wait to see how these perform for you. Congrats on a job well done!
#39
Man, I really need to get off the fence and dive into my heads. I picked up some 241 heads and 5.3 heads to play with a long time ago, but I keep wavering. There's no way I can afford any of the aftermarket castings and the rest of the mods I need, so I should just go for it.
Can't wait to see how these perform for you. Congrats on a job well done!
Can't wait to see how these perform for you. Congrats on a job well done!