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Old 03-09-2012, 09:29 AM
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Cylinder Heads

Would these be good heads to put on my 350.

http://www.jegs.com/i/Dart/301/10120010/10002/-1

I can build any engine but dont really know the details. Can anyone help me out.

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Old 03-09-2012, 09:35 AM
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Quote:
Originally Posted by allansmith859
Would these be good heads to put on my 350.

http://www.jegs.com/i/Dart/301/10120010/10002/-1

I can build any engine but dont really know the details. Can anyone help me out.

Not for your stated 450hp goal.
this particular cylinder head is good quality but the out of the box air flow is modest-lame at just 209 cfm. (flow bench verified) Its needs a lot of porting work to correct to get even near a 450hp capable cylinder head. This is not a Platinum series head.

Pick a true Platinum series head if you want a 450hp capable Dart head.
200cc 215cc etc. The 180cc Iron Eagle head is lame. Bad choice for out of the box high power.

it's not what you want.

Last edited by F-BIRD'88; 03-09-2012 at 09:45 AM.
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Old 03-09-2012, 09:38 AM
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Does it have to be a certain cc or have certain size valves or what??????
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Old 03-09-2012, 09:46 AM
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Quote:
Originally Posted by allansmith859
Does it have to be a certain cc or have certain size valves or what??????
you need to define what you are trying to build.
How many different threads are you going to start on this same engine.?
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Old 03-09-2012, 09:55 AM
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It might be on the same engine but its different topics man. Im not gonna talk about heads in a crank message board. Someone might know things about heads but not about a crank. Stop whining or dont comment
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Old 03-09-2012, 10:01 AM
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Im trying to find the best heads for the money. Any help
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Old 03-09-2012, 10:10 AM
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Originally Posted by allansmith859
It might be on the same engine but its different topics man. Im not gonna talk about heads in a crank message board. Someone might know things about heads but not about a crank. Stop whining or dont comment
I guarantee that attitude won't get you far here.
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Old 03-09-2012, 11:10 AM
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i love DART and it pains me to say that the older style iron eagle DART heads are just that, old and out dated. the new platinum heads are a great head, had a pair of worked over 200cc. made great hp and tq on a 385.

now what cam are using, as this in my opinion is what you should build the rest of the motor around (besides it's intended us, that should be first).
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Old 03-09-2012, 12:59 PM
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Quote:
Originally Posted by allansmith859
Would these be good heads to put on my 350.

http://www.jegs.com/i/Dart/301/10120010/10002/-1

I can build any engine but dont really know the details. Can anyone help me out.
Sort of obsolete, at the price their asking I guess this is cleaning out the warehouse.

These would be OK for a mild street build or as stock replacement. The 64 cc chambers will push you into a dished piston. If you're building a hotter street build or headed for a race class that allows porting, these puppies port up real nice, lots of meat in the walls, it's almost a requirement to get them to work well.

The combustion chamber is a little behind the times, some nice features but the spark plug location is slightly off ideal, aimed at the exhaust valve and a little deeper toward the center between the valves would be better. But all- in-all not a bad head for the price especially if you're build isn't intended to be setting in the winners circle every Saturday night as more modern designs have just enough power edge that if it comes to gun down, these are the number two finisher.

Bogie
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Old 03-13-2012, 08:31 PM
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Quote:
Originally Posted by allansmith859
It might be on the same engine but its different topics man. Im not gonna talk about heads in a crank message board. Someone might know things about heads but not about a crank. Stop whining or dont comment
Since you refuse to read your Private Messages after two notices, we'll do it here. Posts like this and an attitude won't be tolerated on this board, you get one freebie, you used it here.
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