Dart 8.1 Gen 7 Iron Heads
01-10-2012 | 12:13 PM
#121
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Posts: 21
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short blocks done, will see what this is going to cost with these dart heads my stock heads are cncd bigger valves bronze guides .I think the dart can be better but at what cost Im not trying to make more power Im all ready over 810 hp im trying its a pian in the ass trying to get these heads done.
Over 810, NA, with stock heads sounds pretty amazing. So you have a running engine and the only thing you are changing is the heads? Sounds like a perfect product test.
I hope you are not hit with any extra machining requirements for you wallet.
I think I read that the Darts come with the narrower valve guides. Are you popping valves with 3/8" stems in the Dart heads?
02-18-2012 | 05:00 PM
#122
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From: Missouri
I got a set of the Dart heads today ,Im not sure if it was a mistake yet .Im going to have them flowed , and a few changes,like valve size , compare it to Tylers cnc head.From the nakid eye I think I went backwards they dont have bronze guides, the spring seat is small,
What are you having done to the heads.
Did you ever get the heads flowed? Numbers?
02-23-2012 | 03:55 PM
#123
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Gold Member
Joined: Sep 2005
Posts: 1,987
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From: Missouri
I got a set of the Dart heads today ,Im not sure if it was a mistake yet .Im going to have them flowed , and a few changes,like valve size , compare it to Tylers cnc head.From the nakid eye I think I went backwards they dont have bronze guides, the spring seat is small,
What are you having done to the heads.
Did you ever get the heads flowed? Numbers?
02-27-2012 | 07:18 PM
#127
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Joined: Jan 2003
Posts: 853
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From: Pgh. Pa.
sounds like i am too late but i had talked to dart a while back about the changes i would like in the bare dart head to fit my current hp3 valve train parts. They said that i could spec the dart heads to be made to fit the 3/8 valve stems + thin wall bronze guides, bigger diameter spring seat and custom spring seat depth. That way i could reuse my current valve train components except probably the push rods.
What are you having done to the heads.
Did you ever get the heads flowed? Numbers?
What are you having done to the heads.
Did you ever get the heads flowed? Numbers?
Last edited by crayolacrazy; 02-27-2012 at 07:39 PM.
02-27-2012 | 07:28 PM
#128
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Joined: Jan 2003
Posts: 853
Likes: 0
From: Pgh. Pa.
Over 810, NA, with stock heads sounds pretty amazing. So you have a running engine and the only thing you are changing is the heads? Sounds like a perfect product test.
I hope you are not hit with any extra machining requirements for you wallet.
I think I read that the Darts come with the narrower valve guides. Are you popping valves with 3/8" stems in the Dart heads?
I hope you are not hit with any extra machining requirements for you wallet.
I think I read that the Darts come with the narrower valve guides. Are you popping valves with 3/8" stems in the Dart heads?
02-28-2012 | 06:51 AM
#129
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Joined: Sep 2005
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From: Missouri
you could do what ever you want, it just cost money. I have about 2500 with the valves spring upgrades no port work. I put larger springs, inconel exhaust valves ,larger 2150 intake valves . f **k it if its slower ill turn up the boost . If I loose boost we made HP.
What springs did you put in?
What cam are you running?
Last edited by Rage; 02-28-2012 at 07:09 AM.
02-28-2012 | 10:19 AM
#130
Thread Starter
Gold Member
Joined: Sep 2005
Posts: 1,987
Likes: 0
From: Missouri
you could do what ever you want, it just cost money. I have about 2500 with the valves spring upgrades no port work. I put larger springs, inconel exhaust valves ,larger 2150 intake valves . f **k it if its slower ill turn up the boost . If I loose boost we made HP.
I should have thought to ask before. Any pictures you could post of the heads showing the upper valve train complete?
