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Engine - General, Exhaust & Induction Topics about the general engine items, exhaust system discussed here & Improving the intake tract - air filter to intake valve.

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Old 04-17-2012, 05:25 PM   #1
My new 782 head VS. My original 782 head  
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1st off the new head is just that a new cast 782 head from Clear Water il Florida. My old head is off my 88 Shelby.
What follows are comparison pictures .
Both heads

My new 782 head VS. My original 782 head-2012-04-17-17.01.10.jpg


Port size comp.

My new 782 head VS. My original 782 head-2012-04-16-18.16.39.jpg
My new 782 head VS. My original 782 head-2012-04-16-18.17.44.jpg

Its obvious that the ports are smaller . Was there a big differance in turbo 782 heads and 782 NA heads ?
can I port match a gasket to old head and use it to adjust ports on new head? Or should i just take it the my machine shop and leave it up to them?Or maybe Send head back If Clrear Water provides a turbo head. The latter being my choice.
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Old 04-17-2012, 07:10 PM   #2
Re: My new 782 head VS. My original 782 head  
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Somebody will chime in that knows for sure. I think the only difference was the exhaust valves tho.
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Old 04-17-2012, 07:58 PM   #3
Re: My new 782 head VS. My original 782 head  
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There is also a difference in numbers on cam .
Old cam L-16 7849 and I think 120

New cam L-3 7849 and 254
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Old 04-17-2012, 08:02 PM   #4
Re: My new 782 head VS. My original 782 head  
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GLHNSLHT2 has really helped outGLHNSLHT2 has really helped out
do both say 782 on the front?
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Old 04-17-2012, 08:06 PM   #5
Re: My new 782 head VS. My original 782 head  
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Originally Posted by ShelbyNewby View Post
There is also a difference in numbers on cam .
Old cam L-16 7849 and I think 120

New cam L-3 7849 and 254
The cams do differ. Everyone here swears by the 88 tbi cams, they the most aggressive and best cams.
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Old 04-17-2012, 08:11 PM   #6
Re: My new 782 head VS. My original 782 head  
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no but heads are identical
Attached Thumbnails
My new 782 head VS. My original 782 head-2012-04-17-16.56.07.jpg   My new 782 head VS. My original 782 head-2012-04-17-16.59.10.jpg   My new 782 head VS. My original 782 head-2012-04-17-16.59.50.jpg   My new 782 head VS. My original 782 head-2012-04-17-17.02.22.jpg   My new 782 head VS. My original 782 head-2012-04-17-17.02.52.jpg  

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Old 04-17-2012, 08:18 PM   #7
Re: My new 782 head VS. My original 782 head  
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Hey the car this head might go on is an 88 shellby Daytona .woud that have the right cam?
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Old 04-17-2012, 08:20 PM   #8
Re: My new 782 head VS. My original 782 head  
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The new head has the number 1003 where the 782 should be .
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Old 04-17-2012, 08:23 PM   #9
Re: My new 782 head VS. My original 782 head  
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The differences aren't because it's a turbo vs n/a head, it's because you have a high quality factory casting vs a chinese casted head.
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Old 04-17-2012, 08:25 PM   #10
Re: My new 782 head VS. My original 782 head  
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ahh. That dont sound good.
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Old 04-17-2012, 08:27 PM   #11
Re: My new 782 head VS. My original 782 head  
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no wonder it was only 285 dollars.
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Old 04-17-2012, 10:08 PM   #12
Re: My new 782 head VS. My original 782 head  
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Yup. China bought the head cast for the 2.2 heads. If I recall, they use the head on fork lifts?! Might have just been a rumor that went around 5 or 10 years ago. Head still looks pretty nice for a china head :)
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Old 04-18-2012, 07:44 AM   #13
Re: My new 782 head VS. My original 782 head  
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Well I think the new head looks good. I've ported heads for 25 years and I'd just take a grinder to the ports! Even an unexperienced person could open up the ports to at least the gasket and have good results. Just don't get carried away with the grinder. Most flow gains are in the bowl area anyway.
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Old 04-18-2012, 09:11 AM   #14
Re: My new 782 head VS. My original 782 head  
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I bought that same head off eBay when my head went. The casting is fine and I think the cast is from Mexico. All I say is becareful with the valve train and double check your valve train mine came with n/a components and I burnt 4 valves and messed up the valve guides. Other then that china /Mexico casting , who cares its new anything is better then the originals that are now 20-30 years old. I ported and polished mine and it works wonders.

Joey
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Old 04-18-2012, 09:50 AM   #15
Re: My new 782 head VS. My original 782 head  
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make sure they gave you roller rockers if you put your roller cam back in! and like 2.2power said im sure the exhaust valves are for n/a engines

nice looking head tho
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