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home ported heads
#1394250
02/27/13 03:39 AM
02/27/13 03:39 AM
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Joined: Jan 2007
Posts: 685
pennsylvania
poboyengineering
OP
mopar
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OP
mopar
Joined: Jan 2007
Posts: 685
pennsylvania
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a couple of observations while porting my heads in the basement:
1)it takes a lot longer than you planned.
2)port to port consistency is very hard to achieve.
3)it looks good when you go to bed, and looks like crap the next day.
4)i almost forgot...im not as clever as i thought!
Last edited by poboyengineering; 02/27/13 04:55 AM.
It may be ugly, but it sure is slow.
Girls comb their hair in rear view mirrors and the boys try to look so hard....
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Re: home ported heads
[Re: poboyengineering]
#1394251
02/27/13 05:38 AM
02/27/13 05:38 AM
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Joined: Jan 2007
Posts: 685
pennsylvania
poboyengineering
OP
mopar
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OP
mopar
Joined: Jan 2007
Posts: 685
pennsylvania
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i broke through the pushrod pinchpoint...no surprise...what sort of epoxy will hold a tube to repair the leak?
It may be ugly, but it sure is slow.
Girls comb their hair in rear view mirrors and the boys try to look so hard....
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Re: home ported heads
[Re: SuperStock68Dart]
#1394256
02/27/13 01:46 PM
02/27/13 01:46 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,376
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Every time I go to the dentist I think about porting heads.
For my 302 heads I wore earplugs and a dust mask. The Sears electric die grinder came with a long cylindrical stone so I used that. It quickly wore down to a flame shape. I spent most of the time in the bowls, opening up around the valve guide and smoothing transitions. The pushrod pinch I was leery of but I did trim it some, and I got the port faces out to nearly 360 size, paying more attention to which side of the port was more important. I think it took about 8 hours. Being outside and use of earplugs makes it better.
You are right, going over the job the next day, one sees all sorts of little problems.
Congratulations on giving it a try!
R.
Last edited by dogdays; 02/27/13 01:49 PM.
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Re: home ported heads
[Re: dogdays]
#1394257
02/27/13 02:52 PM
02/27/13 02:52 PM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
super stock
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super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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I dont know if imissed it somwewhere but what kind of heads are you porting? I home ported a set of 906's mainly the bowls and cleaned them up and they seemed to work pretty good. I used the porting templates in the bowls from mopar performance.
67' charger 499 RB
10.57 at 127
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Re: home ported heads
[Re: poboyengineering]
#1394259
02/27/13 04:59 PM
02/27/13 04:59 PM
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Joined: Jan 2007
Posts: 685
pennsylvania
poboyengineering
OP
mopar
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OP
mopar
Joined: Jan 2007
Posts: 685
pennsylvania
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thanks for the info..btw, these are 308 sb heads (ive only got $20 in them at this point, so im not scared!) the swirl port thing sort of worries me..it looks like they take up a lot of room, and the serious heads dont have them. any advice? my hillbilly way of checking these is to cc the ports...best i can do right now. with any luck ill only slow it down .25 sec...lol
It may be ugly, but it sure is slow.
Girls comb their hair in rear view mirrors and the boys try to look so hard....
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Re: home ported heads
[Re: pittsburghracer]
#1394260
02/27/13 05:03 PM
02/27/13 05:03 PM
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Joined: Aug 2010
Posts: 40
Washington
SuperStock68Dart
member
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member
Joined: Aug 2010
Posts: 40
Washington
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Quote:
Quote:
Quote:
i broke through the pushrod pinchpoint...no surprise...what sort of epoxy will hold a tube to repair the leak?
Splash Zone....the best you will find in epoxy for cylinder heads!
Splash zone is way over kill for holding tubes in. I drill mine out to the tubing size apply a little JB weld and its ready. When you tap it in it wipes of about 90% of it any way. If it is a small block Edelbrock get some 17/32 K&S brass tube #140 from Ace Hardware. If you need more info PM me. I just did 12 holes last night.
If your pressing a tube into a hole why not just use Loctite sleeve retainer? I didn't know what heads he was using, he didn't say that in his post....my heads dont have a hole to press a tube into...and didn't know his did. Sorry for the misunderstanding!
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Re: home ported heads
[Re: dogdays]
#1394262
02/27/13 05:53 PM
02/27/13 05:53 PM
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Joined: Jan 2007
Posts: 685
pennsylvania
poboyengineering
OP
mopar
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OP
mopar
Joined: Jan 2007
Posts: 685
pennsylvania
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yeah, dogdays..im grinning over the exhaust. really straight roof.
It may be ugly, but it sure is slow.
Girls comb their hair in rear view mirrors and the boys try to look so hard....
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Re: home ported heads
[Re: poboyengineering]
#1394263
02/27/13 09:31 PM
02/27/13 09:31 PM
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Joined: Oct 2011
Posts: 3,036
bean town ....Ca
WHITEDART
master
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master
Joined: Oct 2011
Posts: 3,036
bean town ....Ca
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keep up the good work . like you said 20 dollar heads have some fun and see what you can get out of them some people like the Moroso A-B epoxy.
In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
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Re: home ported heads
[Re: WHITEDART]
#1394264
02/27/13 10:28 PM
02/27/13 10:28 PM
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Joined: Feb 2004
Posts: 6,257
acworth / N. georgia - south e...
cheapstreetdustr
master
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master
Joined: Feb 2004
Posts: 6,257
acworth / N. georgia - south e...
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just press steel stock in the pushrod hole then re-drill to the w2 offset..then grind open the port shirt side square..
dont take anything off the floor unless you know what your doing at the short turn. you will kill more flow there than make if its wrong..
Ive always added material on the short turn..
the radius is key and its easy to kill it and make the same air as an almost unported head..
good luck..
another trick is put a vacuume in the intake port from the comb chamber it will suck out all the debris as you grind..
some doans back pills or ibuprofen and youll will be in order though..
365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured
[image][/image]
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You need some dividers and basic cheapo measuring tools(forgot what they`re called)from harbor freight or wherever so you can maintain port-to-port consistancy and good lighting is VERY important........... 
