Is there any set of performance heads I can get for a 1990 L-98 that are NOT $2000? The Edlebrocks are about $600. Are they any good.

I know, you get what you pay for.

Thanks.

 

I think these look like the best bang for the buck for a mild L98. I think Slalom4me just got some. Maybe he will chime in.

http://trickflow.com/product/chevycy...3degree175.asp

 

What are the plans for the engine, power levels, et goals, etc.?

Need to know whether you want to keep the TPI intake on it.

 

You can get the new Eliminator series AFRs for $1400.

 

TPIS Headers, dual cats, TPIS intake. 1.6 rollers. If I have the exhaust and intake off, doing the heads is really not allot of work, it's easy at that point.

If I REALLY get carried away, I MAY do the cam. But that's A LOT of work with the motor in the car.

Why are the Edlebrocks so dam cheap? Are they that bad?

I don't want to put CRAP on the car....but I don't know if I have to spend $2k for AFRs either. Or $2K to have Ligenfelter port my heads.

 

Edelbrocks are mass-marketed, thats why the price is low, and they are small in size.

If you are running the TPiS MR, then you want a bigger head, like 180-190cc on a 350. If you are just running their base manifold with TPI, then Edelbrock will do fine at about 170cc.

 

The Edlebrocks are $1100 a pair.

I am looking at this one peice intake, that looks like the LT-1.

 

I would recommend going bigger than what Edelbrock normally sells then, 170cc would be ok given its a 350 and keeping stock cam (which you really shouldnt, but is fine), but I would go with 180 or so now and then change the cam later if money is the problem.

Its going to need a computer chip done either way.

 

first give us a budget that you are willing to spend, we already know that you do not want to spend the 2k on heads. for about a 1000 you can get a lot of head for the money.

i agree with Vader and tequila boy.

 

Because of the angle of those heads, would there be any problem mounting the intake and headers on those heads? And are these only for up to 305s? The exhaust valve is.... small.

 

Edelbrock is an excellent quality head, if you can get for 600 get yourself a set and tell me where I can get another set as well. I'm running a set of ported rpms on a 383 and couldn't be happier

 

I have the E-tec 200 on my 383. They seem to be perfect and affordable.

 

Outted!

Have a look at this thread for some idea of the criteria underlying
the decision.

Do we care about port volume or just that flow is optimal?

The Eliminator 180's have very appealing flow numbers. But
these heads are not an OOTB replacement for D-113 heads.
I do not want the headache, delay, expense or uncertainty of
custom heads. Also, I am uncertain of availability for the E 180
and I need or want heads now.

Besides respectable flow numbers, the Trick Flow 23º 175 heads
are aluminum, have 56cc chambers and angled plugs. For my
purposes, the base model with the 0.480" springs will do fine
to start with. So that means I'm in business for under $1,000.
What's not to love?

While the flow numbers are not at the top of the class, keep in
mind the chamber size - from what I can determine, the flow of
a given head diminishes as the chamber is reduced. If a better
flowing head from the list is cut to 56cc, how well will it flow then?

I think these will be a very good choice for people faced with
L98 head gasket maintenance as they flow better and are
available for not much more money than it must cost to have
D-113's repaired, freshened and massaged. For my intended
application, I think their fitment, operating range and
performance are optimal.

Incidently, tequilaboy has been trying to bring these heads to
our attention for months. It was only at the last minute when
I was about to go in a different direction that I happened across
one of his earlier posts and the lights turned on.

.

 

I may be planning a procharger soon. I want heads and cam, maybe other bolt ones like intake, CAI, exhaust, and a few other things here and there. Should I look for 180CC heads? I want to still be streetable. What are some good expensive ones for me?

 

Canfield makes a decent of heads for our L98's for $900 bare or $1330 loaded.

http://www.canfieldheads.com/sbc_2500.html

The trickflows are also a really good budget head in my opinion.

 

Edelbrock heads are priced EACH not by the pair. The cylinder heads are the most important parts of your engine, and you need a camshaft to match them. Simply "throwing" a set of aftermarket heads is no guarantee you'll make any more HP than stock. Also, basing your build on price only is not a good idea either. If you're bucks down, keep an eye out on the forum for good used pieces, but have your bucks ready to go...

Good luck!

 

But I'm not of the opinion they are an ideal fit for stock L98's.
At least not out of the box.

The Canfields are the fifth head in my list in the list in the other thread
and they are the reason I started that thread. Great flow numbers but
I felt the port was big for my needs.

Also, while the chamber size is advertised as 65cc, this measured out
as 67cc in the CHP test. Let's say we need to mill 0.054 - 0.072"
to get back to 58cc and regain compression. How does this impact
those great flow values, how long does it take and who do we get
to do it well.

Thirdly, I believe the plugs are straight in the Canfield heads and
I was concerned about interference with my headers.

Look further down in the other thread where the flow values appear
for the D-113's and nine aftermarket heads. My vote is that the
Trick Flow stand out when the big picture is considered.

.

 

Not sure how these would work for you,but have you considered G.M.s fast burn heads?

 

how much do those go for anyway? Seems like they'd know how to make them.

 

My mild ported Edelbrock heads work well. Better than I think they should. Best mph with my n/a 383 on a minus 800ft da was 113.This was achieved with a fully ported set of 113's First time out (with edelbrocks)with the da about 3,000 ft(on a chitty track) I ran 116.50 mph. I am confident that I picked up 4+ mph. Do not overlook them. They do not have the reputation of an afr head, but Edelbrocks are kid tested and mother approved
Smaller runners work well with the superram. Excellent throttle response.