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

Edelbrock Performer Heads

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Old Nov 2, 2004 | 02:38 PM
  #1  
mustangmuncher's Avatar
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Edelbrock Performer Heads

I just read the article on these in Popular Hot rodding and was intrigued. They achieved 46 more horsepower and 40 more torque at the wheels with the use of a CAI, 1 5/8 shorty headers, corsa catback, and a torque converter (2800 stall). They didnt gasket match the heads, and used the small edelbrock cam (218/218), stock rockers, with a 52mm TB. Now I thought to myself... imagine the power left in that set-up... Go with the hotcam itself or a 224/230 cam, 1.6 roller rockers, gasket matched heads, no torque converter, 1 3/4 headers, catback... what do you guys think?


-Eric
Old Nov 2, 2004 | 03:04 PM
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Re: Edelbrock Performer Heads

Or spend less money on an LE2 setup, and make an easy 380-400rwhp. Your choice.
Old Nov 2, 2004 | 03:26 PM
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Re: Edelbrock Performer Heads

The thing is, I don't want 380-400hp.. as I cannot see that as being reliable, on a stock bottom end. I want something that will happily rev to 6-6200rpms, make in the neighborhood of 320-340rwhp (380-400fwhp) from mail-order stuff, where I can do all the work, without messing something up. I would like to say I did all the modifications to my vehicle. I don't want to say, "so and so ported the heads, and picked the camshaft for me) But the best thing about the Edelbrock set-up is that there is no downtime, no chance to see if your core head can be used to be ported (cracked/warped etc etc). I like the thought of the smallest amount of downtime possible, and when I feel the need to port, the Edelbrock heads start off at 170cc, come with a bigger exhaust valve than stock heads, and flow 242/184 @ .500 lift, 232/192 @ .600 lift. They leave more room for a person to homeport, with better than stock starting points. And even more room for a person such as Lloyd or Phil at AI to port if I go that route. I figure with a gasket match, bigger cam (not a huge cam) 1.6RR, bigger headers, I could achieve my goal, and have almost untouched heads on the car. Yet I am young and nieve, but I would really take pride when I can say, I did everything from my choices/work.
Old Nov 2, 2004 | 03:28 PM
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Re: Edelbrock Performer Heads

I didn't have downtime with my setup. I bought a set of cores from ebay, sent them to Lloyd, and the swap happened as soon as everything got here.

If for some reason you want less power, why not get the LE1 package then. That will do atleast 360rwhp, and pull to your RPM range. You can't beat it for $1100.
Old Nov 2, 2004 | 03:31 PM
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Re: Edelbrock Performer Heads

I will probably end up going with the LE1 set-up.. 5800-6200rpms.. and right where I want my HP... does anyone know the reliability of these set-ups though? How long did your cores take to get back to you, and what did they flow? Thanks.

-Eric
Old Nov 2, 2004 | 03:54 PM
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Re: Edelbrock Performer Heads

we have 2 sets of edelbrock heads. one set for my car one set for my brothers.
ide love to tell ya how they work but we dont have them on yet.
im going to be using the 224/230 on a 112, Jet-hot coated MAC headers, pro-mag 1.6 RR's

according to Desktop dyno it will make 428 Hp and 428 lb-ft tq
i dont know if it will make quite that much but im pretty sure it will be more than stock

the only reason I did not get my stock heads ported is I just could not stand the thought of putting that much money into heads with 113k miles on them so for 1,045 *no tax, no shipping* I picked up a new set of heads, and i also wanted less down time without having to pick up another set of heads to be ported.

webshots pics
i have a few pics of them on my webshots page if you want to see some pics of them
Old Nov 2, 2004 | 04:27 PM
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Re: Edelbrock Performer Heads

lets do a comparison shall we

port volume;

stock lt1; 170cc
e-brock; 170cc
LE1; 190
LE2; 205

flow numbers;

stock LT1; 200cfm
e-brock; 215
LE1; 255
LE2; 270

not only that, do you honestly think those e-brock heads dont have a junk valvejob and valvetrain? do you honestly think Lloyd doesnt put good springs, retainers, keepers and do a good valvejob to them?

rpm is what kills shortblocks more then NA hp. and ive seen pleanty stock shortblock LT1s spun to 7000rpm for years on end and be no worse for wear. the edlebrock setup is a waste of money. you can get a LE1 h/c combo for that price that will make 50 more rwhp. that is if you dont **** up the combination by using 1 5/8" shorty headers, self aligning rockers and tuning it via desktop dyno.

Last edited by 93turbo5oh; Nov 2, 2004 at 04:40 PM.
Old Nov 2, 2004 | 04:33 PM
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Re: Edelbrock Performer Heads

Originally Posted by JustAnotherGuy
I just could not stand the thought of putting that much money into heads with 113k miles on them

Thats like being worried about putting new tires on a set of wheels with 113k miles on them. So should I not build my 396 out of my used LT1 block because it has some miles on it?
Old Nov 2, 2004 | 04:37 PM
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Re: Edelbrock Performer Heads

I dismissed the Edelbrock heads loooooooooong ago. I looked at the flow bench results and immediatly knew they'd be best used to hold open the shop door.

I'm pretty interested in talking to LLoyd about heads/cam setup for my turbocharged LT1. I think I could pickup some impressive gains on my (mostly) stock motor.

Whats his email/phone/website (if he has one) I did a search and didnt find much. Also searched on Google to no avail.
Old Nov 2, 2004 | 04:42 PM
  #10  
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Re: Edelbrock Performer Heads

Lloyds email is nighttrain66@msn.com
Old Nov 2, 2004 | 05:08 PM
  #11  
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Re: Edelbrock Performer Heads

Here is all you could want to know about his setup

http://web.camaross.com/forums/showt...=lloyd+elliott
Old Nov 2, 2004 | 05:13 PM
  #12  
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Re: Edelbrock Performer Heads

Or if you really want some heads that will make some hp talk to phil at www.advancedinduction.com
Old Nov 2, 2004 | 05:17 PM
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Re: Edelbrock Performer Heads


why do i feel like im being attacked.

i read on here night and day trying to decided the best route for what i want.
even drove to charlotte and talked to phil at AI

i feel i have the best of what i want.
i decided the only other set of heads i was going to get would have been afr's

im not trying to say phil and loyd dont do good quality work at all.
but i like the idea of a cnc machine doing my heads than someone with a die grinder.

i like to know that each chamber flows just as well as the next

and as for the cfm the chart i saw rated them at
242/184 @.500
232/192 @ .600

i know that phils and loyd's flow a lil nicer, but i also paid less and still have the stock heads i could sell i needed/wanted to *or make into a very large paper weight *

and i would have not gone with lyod because, im jittery about having head work by someone i cant meet in person *yes im kind of odd*

*sry if this sounds like it jumps around a lil, im kind of sleepy and keep losing my train of thought *
Old Nov 2, 2004 | 05:21 PM
  #14  
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Re: Edelbrock Performer Heads

edelbrock flows 215? I know they aren't gods creation... but they ARE not that bad.. right from popular hot rodding are the LT1/Edelbrock/LT4

LT1 (stock unported)
.100 61 52
.200 127 93
.300 179 127
.400 214 145
.500 226 156
.600 no listing

Edelbrock (out of the box)
.100 61 52
.200 117 100
.300 174 140
.400 220 167
.500 242 184
.600 232 192

LT4
.100 no listing
.200 156 121
.300 208 149
.400 243 177
.500 265 190
.600 257 196

The edelbrocks are no advance in technology, yet they are not as bad as you said. But I would like to keep 170cc... I will be keeping stock cubes until something pops, and I would like the best low rpm torque possible, with the best throttle response.. and from my weak (i emphasize weak because i havent done much) it seems 170cc is good? for 350 cubes..? Also, if i do decide to go porting, the Edelbrock heads have .300 inches for porting room, and have thinker deck surface than the LT1/4 castings, which plays into stability? Yes the LE1 is 1100 dollars, and offers great possibilties with top of the line quality and from a highly respected head porter, I don't want the downtime, I don't want to have to buy a set of heads, just to ship them to my house, ship them to a porter, pay for shipping them back (while risking that the cores are worthless/unusable). The Edelbrocks seem like a wonderful alternative to the LT4 set-up, and a fresh/new comparison to sending heads out to be ported. Everything I said is from my understanding on a few minutes of research and would greatly appreciate any corrections so that I don't sound stupid all the time.
Old Nov 2, 2004 | 05:31 PM
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Re: Edelbrock Performer Heads

ive talked to phil at length on the phone and i live by Lloyd. the only thing i dont like about Phils heads are the price. that guy knows what he's talking about. im not saying the edlebrocks are junk. the flow numbers i got were from an issue of chevy high performance comparing a lot of different cylinder heads. ill put more faith in that test then edlebrocks flowbench. you arent being attacked, but the cnc machine is only as good as the person who designs the port in the first place. its your money, spend it as you wish.



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