LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

edelbrock lt1 heads

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Old May 21, 2003 | 06:21 PM
  #1  
lt1crazy's Avatar
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edelbrock lt1 heads

how much hp do u think a lt1 would gain with edelbrock lt1 cylinder heads?
Old May 21, 2003 | 06:40 PM
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you would be WAY WAY WAY better off having lloyd elliot "nighttrain66" do a full port and polish....
Ive heard nothing but bad about the lt1 edelbrock heads...
Old May 21, 2003 | 06:50 PM
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I have read edelbrock statements that say these heads give you ~20-25 hp above stock. They still use 1.94/1.5 valves, etc. I don't understand why anyone would go through so much trouble to build a head that makes 20 hp above stock. What is the point of that?
Old May 21, 2003 | 07:09 PM
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Actually 20hp isn't bad when you talking stock camshaft. Put in a large cam and Im sure you would see much larger gains. Although for the price you could probably just get a set handported that would perform a bit better.

Aaron
Old May 21, 2003 | 07:17 PM
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I definetly wasn't sold on those, they increase compression with those heads & have a bit more flow, the compression boost alone is the 20-25HP, remember their 20-25 HP means 10 HP at the flywheel, just like the Hooker Cat-back gives you 30hp
Old May 22, 2003 | 05:44 PM
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so id be better off with a set of lt4 heads?
Old May 23, 2003 | 04:07 AM
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Somebody needs to get some hard numbers on these heads. Anyone buy them yet?

Edelbrock should sponsor me, give me a set of heads to install and see what happends. I would pay for the dynotime before and after, both with a tune!

As if that would ever happen.

Actually, if its with a stock cam, might not be bad. Anyone have the flow numbers on these heads?
Old May 23, 2003 | 07:09 AM
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I cant see how you guys can bash or promote these heads without any results- or EVEN FLOW NUMBERS for that matter!

25mph on a stock vehicle is a hell of a gain, expecially seeing how restrictive the intake (box) and exhuast system is.

Most guys see 30hp gains with heads and the Lt4 hotcam. There are exceptions and crazy nuts out there... but as a general rule of thumb id say 30hp is normal.

How much room do these things have for porting anyway?
Old May 23, 2003 | 08:59 AM
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Originally posted by lt1crazy
so id be better off with a set of lt4 heads?
You have good heads already just pull and port the hell out of em. Buy a cam, 1.6rrs, and nice a P&P you will have 360-380rwhp.
Old May 23, 2003 | 09:34 AM
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I agree with Trey on this. Everyone is bashing these things and I still don't know one person that has a set and has flowed them and checked to see how much they can be worked over.

I would say 20cfm over a stock head isn't too bad. I'm sure there's plenty of room to improve on them too.
Old May 23, 2003 | 09:45 AM
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Originally posted by IgorT.455/406
I have read edelbrock statements that say these heads give you ~20-25 hp above stock. They still use 1.94/1.5 valves, etc. I don't understand why anyone would go through so much trouble to build a head that makes 20 hp above stock. What is the point of that?
yup I agree...save a few hundred more and put what I hear are the best...AFR.....I'm considering the 195cc and an LT4 intake.
Old May 23, 2003 | 09:50 AM
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Originally posted by mongse_1
I'm sure there's plenty of room to improve on them too.
this depends on the cast they may be like the 561 cast not much materail to work with.
Old May 23, 2003 | 10:04 AM
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Originally posted by 97Z-M6
this depends on the cast they may be like the 561 cast not much materail to work with.
But no one knows this unless they try.

I've heard from what I consider a good source that the Edelbrock heads do have some potential in them.
Old May 23, 2003 | 12:38 PM
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Like I said, Edelbrock should let me try them!
Old May 23, 2003 | 01:01 PM
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Originally posted by mongse_1
But no one knows this unless they try.

I've heard from what I consider a good source that the Edelbrock heads do have some potential in them.
are you willing to be that test dummy, im not.
i dont have the 1200 or 1300 hundred to gamble with. so you do it and let me know how it comes out.



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