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Old 05-11-2009, 11:44 AM
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Dream Oval
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Default Head Question

As you can see from my sig I have an E303 cam, but stock E7 heads. I have read on here before that the heads are killing my cam. I can get a set of GT40 heads cheap and I was wondering if this will help my setup. I know there not the best in the world but it's something I can afford now. As always thanks for the advice.
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Old 05-11-2009, 11:56 AM
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FivePointOhh
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heads will help, your cam will not. change your cam while you are at it. but yes e7 heads are the biggest hold up on these motors.
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Old 05-11-2009, 12:10 PM
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Dream Oval
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What cam do you recommend
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Old 05-11-2009, 12:17 PM
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Joel5.0
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It will help, but it won't be a night-day difference. For the E-303 (or any other cam).... you need to match it with the correct valve train components (springs, retainers, locks, correct PR's length).
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Old 05-11-2009, 01:05 PM
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67mustang302
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If you don't mind spending $1,050 per head, you could get the new Edelbrock RPM XT 18 degree heads and a custom cam. You'd make a crapload of power.
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Old 05-11-2009, 01:37 PM
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Joel5.0
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Originally Posted by 67mustang302
If you don't mind spending $1,050 per head, you could get the new Edelbrock RPM XT 18 degree heads and a custom cam. You'd make a crapload of power.
$1,350 for a set of TFW TW 170cc or ~$1,500 for a set of TFS TW 190cc "fast as cast" + a custom cam ($300-$400)..... and there will be some budget left for new undies.
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Old 05-11-2009, 01:52 PM
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67mustang302
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Haha, yeah, that's true. Even a set of TEA ported TW's costs less. Those heads are still new and seem to have great potential(at least on paper) and use good quality parts, but I guess only time will tell if they're actually worth the money. I suppose a lot of the money is in the valvetrain though, lightweight valves and beehive springs.
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Old 05-11-2009, 08:11 PM
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sn95_331_GT_ yellow
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those new TFS Fast Cast heads look amazing. i really want to see how they clean up with a little bowl work and some mild porting. they're already around 270cfm @ .600 lift.
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Old 05-12-2009, 09:11 AM
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Portmaster
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Originally Posted by Dream Oval
As you can see from my sig I have an E303 cam, but stock E7 heads. I have read on here before that the heads are killing my cam. I can get a set of GT40 heads cheap and I was wondering if this will help my setup. I know there not the best in the world but it's something I can afford now. As always thanks for the advice.
If I were you I'd run your current setup until you can put together a well matched Head/Cam and Intake package. If you are just going to swap the heads just stick to the cam you have. I don't like the E cam but it will work pretty good with the GT40 heads and current intake.
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Old 05-13-2009, 08:45 AM
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Thanks for the advice. I will eventually get a good h/c/i combo, but I can't afford it right now. I'll probably go ahead and put the GT40 heads on now and run them until I can afford what I want. I really need to put some money into my suspension before I buy a new combo.
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