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302 head porting

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Old Jul 9, 2011 | 01:49 PM
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From: shelbyville mi
302 head porting

well who does a good job? i have the heads off and was wondering who does a good job at porting any builders come to mind??
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Old Jul 9, 2011 | 06:31 PM
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From: alerbamer
twice you said ... dont waste money on stock heads .. dont waste money on stock heads .. get edelbrocks ....
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Old Jul 10, 2011 | 12:11 AM
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From: shelbyville mi
well i was told even if i did get the edelbrocks id want to get them ported?? im just going by what i was told im not a pro by anymeans
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Old Jul 10, 2011 | 08:27 AM
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From: alerbamer
not unless you wish to go over 550 horses or so ..
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Old Jul 10, 2011 | 01:38 PM
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From: shelbyville mi
Originally Posted by HOSS429
not unless you wish to go over 550 horses or so ..
ok thanks man!
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Old Jul 14, 2011 | 01:00 AM
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As long as you have the heads off, try porting them yourself. You can pretty much leave the intake ports alone. Focus on the exhaust ports. The Windsor engines have small exhaust ports. If you do not want to spend alot of money, get some coarse and medium conical ginding stones for a 2-speed hand drill. Try to get as straight a shot from the valve to the outside of the exhaust port. Start with the coarse stone and use the high speed setting on the drill. Grind away metal untill the exhaust port is about two fingers ( that is fingers on your hand ) wide. Then use the fine stone to get a smooth finish on the exhaust port. It will take about four hours to complete each exhaust port. My engine really woke up after I ported my own heads. You will enjoy having done it yourself. By the way , you may then need larger primary tubes for your headers.

Last edited by 2 Go Snake; Jul 14, 2011 at 01:05 AM.
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Old Jul 19, 2011 | 01:41 AM
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Smile

Not everyone has the same width fingers, so I thought I would measure mine. The distance across my two fingers is 4.25 inches. The home ported exhaust ports on my 302 are just a hair over 4.25 inches.
The reason I used the width of two fingers for measurement is because I wanted to have exhaust ports as large as the smallblock chevy engines I raced against on oval tracks. Whenever, I would see a chevy racer with his headers off, I would go over to his engine and see how many fingers I could get in his exhaust ports. I tried to make my 302 exhaust ports larger than the small block chevy. No head porter will port the 302 head large enough for durability reasons and risk of grinding to close to a water passage in the head.
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Old Jul 19, 2011 | 05:47 PM
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I would probably go with trickflow or AFR over edelbrock though
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Old Jul 19, 2011 | 10:53 PM
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Originally Posted by future9er24
I would probably go with trickflow or AFR over edelbrock though
I agree but I think for the dough you can't beat edelbrock heads. Last weekend I found a set of 58cc performers with valves and springs AND a set of roller rockers for $700. While shopping for those my set of dream afr 185's were up on the block and they were close to $1500 assembled. for a budget engine there is no way I could justify afr's...well I could probably talk myself into it

I will be porting my iron heads next month.
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Old Jul 20, 2011 | 12:25 PM
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Well that changes things, I didn't realize that edelbrock was that much cheaper. Learn something every day lol
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Old Jul 20, 2011 | 12:43 PM
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The performers were used but only had 2000 miles on them. Compared to the new price on the afr's. but cheap is cheap. Even used afr's go for alot but that stands to reason since they are the superior head.
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Old Jul 25, 2011 | 01:25 AM
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Question

I was wondering what 75-302-stang ended up doing for heads. Did he port his iron heads or did he buy aluminum heads. 75-302-stang, what did you do ?
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Old Jul 30, 2011 | 11:16 PM
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From: shelbyville mi
well i havent really messed with them yet due to im buying a truck to drive everyday so iv been saving money and working my but off for it.. im looking for aluminum heads tho
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