DIY cylinder head porting

99v6stang · July 24th, 2007, 05:35 PM

I was looking at www.sa-motorsports.com at their do it yourself guide to cylinder head porting and i was wondering if this is really as easy as they make it sound? Also, how would doing it yourself compare to something such as the stage 3 cylinder heads from www.moranav6racing.com as far as power is concerned?

02ponypackage · July 24th, 2007, 05:52 PM

i did my lower intake...deleted my IMRCs and filled the holes inside with JB weld and ready to go

99v6stang · July 24th, 2007, 06:15 PM

What are the IMRCs? and did you notice much of a difference in performance?

02ponypackage · July 24th, 2007, 06:25 PM

i wouldnt know... a SC will be sitting on top....its on our cars for Trq. purposes....they car sections that are closed for better trq. and open at about 3500rpms.....for more power.....opening them for all the time use will kill low end trq........but with a SC I wont need to be worrying about low end trq....since I have boost to replace it a bit

mdvaldosta · July 24th, 2007, 07:00 PM

Done several sets of heads, a basic bowl to port cleanup and gasket matching would be the equivelant of maybe a stage 1 port job... say 10-15 horsepower on a 6 banger. Honestly though anything other than that should be left to the pro's with or those companies with CNC machines. Trying to re-design a port or doing major work might hurt more than help if you don't know what your doing.

99v6stang · July 24th, 2007, 07:34 PM

Well i decided that im going to be the one to take a risk and try something, and im going to attemp to port and polish my cylinder head, and both upper and lower intakes. I will let you all know how it goes.

El_Cangri · July 24th, 2007, 09:43 PM

good luck with that...

Onemanzu · July 25th, 2007, 02:28 PM

yea dude good luck take your time... this is a kinda expensive deal... and you need to take your time and make it perfect and get as much information on it as possible ...

good luck buddy

99v6stang · July 25th, 2007, 08:22 PM

Yea ive found lots of information, and ordered all the tools i need, except i cant seem to find an upper intake manifold gasket, only the lower one. Is there an upper one, of is the upper one just the cylinder head gasket? I will probally start this project tommorow and hopefully take some pictures and let you know how its going.

2000Mustang · July 25th, 2007, 09:59 PM

Something that is easy to do: grind the edges down to exactly match the gasket. Sometimes the gasket is bigger than the hole. Simply use a permanate (<-sp?) marker and draw where the gasket goes, then use a small grinding tool to carve the holes out to match the gasket. Do not try to make the entire chamber that big, simply angle the gringing so that it runs into the original port a few inches down.

July 24th, 2007, 05:35 PM	#1
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	DIY cylinder head porting I was looking at www.sa-motorsports.com at their do it yourself guide to cylinder head porting and i was wondering if this is really as easy as they make it sound? Also, how would doing it yourself compare to something such as the stage 3 cylinder heads from www.moranav6racing.com as far as power is concerned?

July 24th, 2007, 05:52 PM	#2
02ponypackage MM Fanatic Join Date: Oct 2006 Location: Central FL Posts: 3,420 iTrader: 0 reviews	i did my lower intake...deleted my IMRCs and filled the holes inside with JB weld and ready to go __________________ just a V6 with a bad belt slip under the hood

July 24th, 2007, 06:15 PM	#3
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	What are the IMRCs? and did you notice much of a difference in performance? __________________ My car ---- (m112 in progress)

July 24th, 2007, 06:25 PM	#4
02ponypackage MM Fanatic Join Date: Oct 2006 Location: Central FL Posts: 3,420 iTrader: 0 reviews	i wouldnt know... a SC will be sitting on top....its on our cars for Trq. purposes....they car sections that are closed for better trq. and open at about 3500rpms.....for more power.....opening them for all the time use will kill low end trq........but with a SC I wont need to be worrying about low end trq....since I have boost to replace it a bit __________________ just a V6 with a bad belt slip under the hood

July 24th, 2007, 07:34 PM	#6
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	Well i decided that im going to be the one to take a risk and try something, and im going to attemp to port and polish my cylinder head, and both upper and lower intakes. I will let you all know how it goes. __________________ My car ---- (m112 in progress)

July 24th, 2007, 07:00 PM	#5
mdvaldosta MM Fanatic 2002 Mustang GT 11.47@120.58 Join Date: Aug 2005 Location: Valdosta, GA Posts: 3,940 iTrader: 0 reviews	Done several sets of heads, a basic bowl to port cleanup and gasket matching would be the equivelant of maybe a stage 1 port job... say 10-15 horsepower on a 6 banger. Honestly though anything other than that should be left to the pro's with or those companies with CNC machines. Trying to re-design a port or doing major work might hurt more than help if you don't know what your doing.

July 25th, 2007, 02:28 PM	#8
Onemanzu ¡ʇsnq ɹo uʍop ǝpısdn Join Date: Oct 2006 Location: Looking for free hand jobs in poland springs nebraska... silly gooses Posts: 12,514 Blog Entries: 1 iTrader: 0 reviews	yea dude good luck take your time... this is a kinda expensive deal... and you need to take your time and make it perfect and get as much information on it as possible ... good luck buddy __________________ My Foz

July 25th, 2007, 08:22 PM	#9
99v6stang Enthusiast Join Date: Dec 2006 Posts: 760 iTrader: 0 reviews	Yea ive found lots of information, and ordered all the tools i need, except i cant seem to find an upper intake manifold gasket, only the lower one. Is there an upper one, of is the upper one just the cylinder head gasket? I will probally start this project tommorow and hopefully take some pictures and let you know how its going. __________________ My car ---- (m112 in progress)

July 25th, 2007, 09:59 PM	#10
2000Mustang Enthusiast 1998 Mustang GT Join Date: Dec 2006 Location: Kansas City, MO Posts: 561 iTrader: 0 reviews	Something that is easy to do: grind the edges down to exactly match the gasket. Sometimes the gasket is bigger than the hole. Simply use a permanate (<-sp?) marker and draw where the gasket goes, then use a small grinding tool to carve the holes out to match the gasket. Do not try to make the entire chamber that big, simply angle the gringing so that it runs into the original port a few inches down. __________________ Off-road X pipe, Magnaflow mufflers, BBK cai, 3.73 gears, ZEX 75 shot (not hooked up), 17in. Bullitts, lowered

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