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

Anyone using the new Edelbrock heads yet

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Old Feb 27, 2003 | 11:05 AM
  #1  
atljar's Avatar
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Anyone using the new Edelbrock heads yet

Just wondering if anyone has gotten a stock set with a flow chart, or a ported set with a flow chart. Interested to see cubustion chamber cc, as well as intake cc before and after port.

$__._ ? Cost?

I have heard they may make a 200cc head soon! Any details?
Old Feb 27, 2003 | 11:14 AM
  #2  
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they are not out yet. 54 cc chamber is what they have. price is not yet availible
flow #'s:

.100 67I 64E
.200 119I 112E
.300 177I 153E
.400 226I 188E
.500 265I 207E
.600 281I 217E
.700 285I 220E
flow data @ 28" h2o

they are going to be availiable bare & complete
valve size 1.94 intake 1.55 exhaust
Old Feb 27, 2003 | 11:41 AM
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I talked to a Edelbrock rep and he told me that their Lt1 heads will not be available until later this year. He also told me that they are working on an intake also.

Last edited by IDOXLR8; Feb 27, 2003 at 01:06 PM.
Old Feb 27, 2003 | 12:38 PM
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nice looking numbers, should be able to see 300i, 230e with a little porting. A new intake too! God im in heaven. lol. thanks guys
Old Feb 27, 2003 | 12:41 PM
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Anybody know the release date on these heads?
Old Feb 27, 2003 | 02:12 PM
  #6  
SVT Killer LV's Avatar
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Originally posted by IDOXLR8
I talked to a Edelbrock rep and he told me that their Lt1 heads will not be available until later this year. He also told me that they are working on an intake also.
The same thing TFS reps told me like 2 years ago.. Still not out...
Old Feb 27, 2003 | 04:42 PM
  #7  
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964MLA,

Where did you get those flow numbers? That is very high for unported castings. Especially the exhaust.

I'll change me heads if these flow numbers were true.
Old Feb 27, 2003 | 09:08 PM
  #8  
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I'd most certainly be interested in seeing what they actually are and will do. Regarding the #'s posted, theyre not bad for an as-cast head, but I'd be surprised if they did that. Noone will know until they're released and some shops have the opportunity to go through them. Not that it really matters though . Edelbrock used to have their *** handed to them by the TFS stuff in the sbf realm, but the new performer RPM's are actually a nice head now.. not b/c of what they flow as cast, but b/c they've got a ton of material to carve out a killer port .

Interest in LTx stuff is always nice
Old Feb 27, 2003 | 09:42 PM
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Originally posted by SkarodoM
theyre not bad for an as-cast head
Well, if the flow numbers listed are true, that's 15% more flow than LS1 heads with a whopping 60 +/- cc smaller runners. Pretty damn good!
Old Feb 27, 2003 | 09:47 PM
  #10  
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Has the situation changed since the day I received THIS message from Edelbrock?

X-Apparently-To: via 216.136.175.68; 22 Oct 2002 15:40:10 -0700 (PDT)
X-Track: 0: 100
From: edelbrock <edelbrock@edelbrock.com>
To:
Date: Tue, 22 Oct 2002 15:38:08 -0700
Subject: RE: LT1 cylinder head application
X-Mailer: Internet Mail Service (5.5.2650.21)


It's a possibility in the future, but I don't know if or when we are going
to look into doing a head for the LT1. With all the research and testing
that goes into producing a modified head, even if we started today it would
not be ready for production for at least 6 months to a year. In the mean
time, I unfortunately would have to refer you to one of our competitors, or
to modify your stock casting.


Please include a copy of the original message when replying. It is much
appreciated.
Sincerely,
Ryan Scoltock
Edelbrock Tech. Dept.



-----Original Message-----
From:
Sent: Monday, October 21, 2002 3:07 PM
To: edelbrock@edelbrock.com
Subject: LT1 cylinder head application



Edelbrock Folks,


Should there be any expectation that Edelbrock will be making a cylinder
head
for GM LT1 small-block V8 engines in the near future?... This market seems
to
be lacking at this time. While many people spend $1200+ to have a set of
stock
LT1 or LT4 heads ported and polished, I'd much rather have an improved
casting
such as an Edelbrock casting.


Should we expect to see anything in the near future. Or Ever? At this
time,
the only aftermarket heads that I'm aware of for the LT1 are built by Air
Flow
Research (AFR). I know Edelbrock is a good name in performance, and I'd
much
rather go with an Edelbrock product if one existed.


Thanks,


Michael
1995 Camaro Z28 (LT1)
Old Feb 27, 2003 | 09:49 PM
  #11  
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Originally posted by Josh-'97 WS6
Well, if the flow numbers listed are true, that's 15% more flow than LS1 heads with a whopping 60 +/- cc smaller runners. Pretty damn good!
That isnt a valid comparison .
Old Feb 27, 2003 | 10:29 PM
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Well if its true that edelbrock isnt researching into the LT1 market, i think it is pretty &^@)&#^& up. They are advertising the heads in magazines, were at the sema show with them etc. I dont see how they can say all that stuff and then not actually follow through with the product.
Old Feb 27, 2003 | 10:30 PM
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Originally posted by atljar
Well if its true that edelbrock isnt researching into the LT1 market, i think it is pretty &^@)&#^& up. They are advertising the heads in magazines, were at the sema show with them etc. I dont see how they can say all that stuff and then not actually follow through with the product.
Well, that email was from October, so maybe the have changed their minds??

-Michael
Old Feb 27, 2003 | 10:37 PM
  #14  
D James's Avatar
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Originally posted by Josh-'97 WS6
Well, if the flow numbers listed are true, that's 15% more flow than LS1 heads with a whopping 60 +/- cc smaller runners. Pretty damn good!
I am far from a head expert, but if they flow this good woudn't they produce more horsepower than what they are advertising on here http://www.edelbrock.com/automotive/...new_heads.html

I mean 24 horses doesn't seem like very much if those numbers are correct. Maybe it needs a bigger cam to make them shine. What do you guys think
Old Feb 27, 2003 | 10:43 PM
  #15  
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You know, back in 95 Edelbrock DID an intake for the LT1 and advertised a 28hp gain on a completely stock car. They went so far as to give Doug Rippie Motorsports and TPIS pics, pricing, and tell them to start accepting orders for production to start 2 months later. IT EVEN MADE EDELBROCK'S 96 parts catalogue. The list price was $450, but anyone who ordered it from DRG or TPIS was refunded their $$$ and Edelbrock never produced them. A rep there told me in 2000 that there were 13 of the prototypes in existance and offered me the # of a shop that was doing flow tests on them and might still have it. The shop wanted $1,100 for it!!!!
So if they are offering heads and an intake, they'll probably just finally release THAT intake, maybe just w/ the "as cast technology." As for those flow numbers, it still wouldn't make since to purchase them unless the price was really right. You can have the porting done on your heads that I had done on mine for just over $1K and my flow numbers are very similar to theirs. My flow @ .20 is actually better, and the flow @ .50 is identical for the intake and only 7 short on the exhaust. That is w/ the 1.94/1.50 STOCK exhaust valves. Had I gone to swirl-polished, back-cut Manley's, I probably would have exceeded their intake #s and exhaust.
BUT if you're looking into getting them and porting them the question becomes, how do they compare in price and performace to the AFRs that have already proved and established themselves in the market.



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