Port the stocks or buy new????
07-23-2008, 09:49 PM
#1
Port the stocks or buy new???? So I need some feedback from those who have done head work and which would be the smart way to go...should I buy new heads (if so which to go with) or should I have my stock ones ported? Not sure exactly what cam I am going with, something on the mild side because it needs to pass the sniffer test. 68k on the car. Thanks 
07-24-2008, 01:09 PM
#5
Launching!
do they need any additional porting or clean-up work? i understand many aftermarket heads do. especiallly decking since often they come with huge combustion chambers that lower compression ratio way too far for us NA guys.
07-24-2008, 01:29 PM
#6
Launching!
just looked them up on jeg's. 58cc chambers says they don't require decking for good compression but they're only 180cc intake runners that flow 257cfm @.500. ithe AI's flow up around 275 cfm, granted that's at .600 i think. can't a chart on them. for those building a street 350/355 they'd prbably be great as-is. at less than $700 fully assembled each they are priced well. hmm...
07-24-2008, 02:49 PM
#7
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^ Yep! Mine required no clean-up nor decking. 58cc is fine for N/A (plus I have a 355 so it should work out quite well). I paid about $1200 shipped for both, fully assembled. They look greak. I have a thread about the install. I'm just a plugs and wires change from firing up (= Great looking heads. I would recommend them to anyone.
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07-24-2008, 02:55 PM
#8
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^ Yep! Mine required no clean-up nor decking. 58cc is fine for N/A (plus I have a 355 so it should work out quite well). I paid about $1200 shipped for both, fully assembled. They look greak. I have a thread about the install. I'm just a plugs and wires change from firing up (= Great looking heads. I would recommend them to anyone.
it just sounds funny when you say you'd reccomend something you havent even used yet. and just for the record i am jealous and wish i had that kinda money for some new heads.
07-24-2008, 03:29 PM
#9
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not trying to start a flaming war, but just because they look good doesnt mean anything about their performance (and yes i have done some reading and know that Dart's are actually pretty nice)
it just sounds funny when you say you'd reccomend something you havent even used yet. and just for the record i am jealous and wish i had that kinda money for some new heads.
it just sounds funny when you say you'd reccomend something you havent even used yet. and just for the record i am jealous and wish i had that kinda money for some new heads.
07-24-2008, 04:34 PM
#10
Im a big fan of porting the stockers and adding 2.00/1.56 valves...I think the ones from Lingenfelter are some of the best out there for component selection, quality, repeatability of the work and the results...I run their heads and am on my 13th year with them...I had some extra hand portwork done to them in 2005 by Eric Bradby, but the original valve springs still remain! LPE has updated their CNC program since mine were done back in 1995 and if you opt for the hand finishing you'll have what I have...
Last I checked on their site you can send in your heads and $1395 and they'll take care of you...They flow well and my results speak for themselves. Its worth a check...
--Alan
Last I checked on their site you can send in your heads and $1395 and they'll take care of you...They flow well and my results speak for themselves. Its worth a check...
--Alan
07-24-2008, 04:57 PM
#11
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JUST SAYING EVEN IF GOD HIMSELF BLESSED THOSE HEADS, I STILL WOULDNT GO AROUND RECCOMENDING THEM LIKE YOU'VE HAD EXPERIENCE WITH THEM, THATS ALL I WAS SAYING.
I MEAN ITS LIKE ME SAYING TO A GIRL, YEA YOU SHOULD USE TAMPAX CAUSE MY GIRLFRIEND LIKES THEM AND SO DOES 99% OF AMERICA.
JUST FOOD FOR THOUGHT.
07-24-2008, 05:00 PM
#12
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I TOTALLY UNDERSTAND THAT. BUT NOT TO
JUST SAYING EVEN IF GOD HIMSELF BLESSED THOSE HEADS, I STILL WOULDNT GO AROUND RECCOMENDING THEM LIKE YOU'VE HAD EXPERIENCE WITH THEM, THATS ALL I WAS SAYING.
I MEAN ITS LIKE ME SAYING TO A GIRL, YEA YOU SHOULD USE TAMPAX CAUSE MY GIRLFRIEND LIKES THEM AND SO DOES 99% OF AMERICA.
JUST FOOD FOR THOUGHT.
JUST SAYING EVEN IF GOD HIMSELF BLESSED THOSE HEADS, I STILL WOULDNT GO AROUND RECCOMENDING THEM LIKE YOU'VE HAD EXPERIENCE WITH THEM, THATS ALL I WAS SAYING.
I MEAN ITS LIKE ME SAYING TO A GIRL, YEA YOU SHOULD USE TAMPAX CAUSE MY GIRLFRIEND LIKES THEM AND SO DOES 99% OF AMERICA.
JUST FOOD FOR THOUGHT.
07-24-2008, 05:42 PM
#13
Been asking the same thing myself. After talking to llyod Elliot, Im gonna end up using the stock heads and have them worked over real good. Stock heads will be fine for all NA350-355s and most 383s unless its an all out built 383. Almost everyone I have spoken with has told me the same thing. Now with that said you can get a set of complete aftermarket heads for the price of a good PP/valvetrain job on your stockers.
Dont know if that helped or hurt but Im using the stockers.
Dont know if that helped or hurt but Im using the stockers.
07-24-2008, 08:12 PM
#14
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Stockers...From the results, I've seen from LE/AI, you'll be fine and no, you wont regret it 
Just make sure to tell them all your goals, how much of the street/track, the car will see,etc.
Just make sure to tell them all your goals, how much of the street/track, the car will see,etc.
07-24-2008, 09:59 PM
#19
When folks start claiming something is good go looking for RESULTS to back that up and look at the whole car/setup, if someone has a all out racecar that does not mean it is the best setup for a street car. BUT if say one guy has ported stock castings on a racecar and it goes faster than ported aftermarket castings on another racecar that should maybe get your attention.
I know everyone drools over the Darts BUT the only test I am aware of sofar has them performing the same as lightly worked iron LT1 heads, and someone else runs some Dart head all worked over in a racecar and goes slower than others do on ported stock castings. Not saying they are bad, just saying sofar the hype is not justified.
I know everyone drools over the Darts BUT the only test I am aware of sofar has them performing the same as lightly worked iron LT1 heads, and someone else runs some Dart head all worked over in a racecar and goes slower than others do on ported stock castings. Not saying they are bad, just saying sofar the hype is not justified.
07-24-2008, 10:28 PM
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When folks start claiming something is good go looking for RESULTS to back that up and look at the whole car/setup, if someone has a all out racecar that does not mean it is the best setup for a street car. BUT if say one guy has ported stock castings on a racecar and it goes faster than ported aftermarket castings on another racecar that should maybe get your attention.
I know everyone drools over the Darts BUT the only test I am aware of sofar has them performing the same as lightly worked iron LT1 heads, and someone else runs some Dart head all worked over in a racecar and goes slower than others do on ported stock castings. Not saying they are bad, just saying sofar the hype is not justified.
I know everyone drools over the Darts BUT the only test I am aware of sofar has them performing the same as lightly worked iron LT1 heads, and someone else runs some Dart head all worked over in a racecar and goes slower than others do on ported stock castings. Not saying they are bad, just saying sofar the hype is not justified.