I guess Trickflow has come in on the LT1 game with a new head. I like the intake runner size - especially for a 383 or 396. The Edelbrock head seems pretty good for the money. Does anyone know if either of these heads are any good? Thanks!!!!!!!

 

Try doing a search here on these. But IMO neither one is as good as AFR or ported LT4 heads, just my .02 cents.

 

Those are both castings we'd like to get ahold of at some point, as it seems almost no one independant has had any .

Generally, when you're talking aftermarket heads, the biggest benefit IMO is the potential that they may have. A well done LT1 head will handily outperform most aftermarket offerings, but a well done aftermarket casting will typically leave the production castings behind

If you want power on a budget I'd stick with a production casting. Of course if you planned on having someone go through the aftermarket casting later, then those may work sufficiently for you until then if you can stand the likely meager gains .

 

I haven't use'd either one.But the trick flow is a 195 heads very simailer to the afr 195's.The edelbrocks are only a 175 intake seams like it would be good for a stock to mild lt-1.I would go trick flow.IMO

 

I did see the supposed flow numbers for the Trickflow heads and I'm not sure I believe them. I wish the Edelbrock guys would have consulted people that buy the stuff! I guarantee that if they had put 2.00 intake valves in those things, and brought the intake port size to 180 - 185 cc's, they would have real trouble keeping them off of the shelves!!!!!!!! I would consider the LT4 heads but Karl Ellwein had a brand new set flowed and they didn't really flow much better that a stock set of LT1's!!
.100 63 42
.200 129 87
.300 177 118
.400 207 143
.500 225 146
.600 221 162
.700 221 165
(LT4 head flow)

 

Both of these heads have been on the market for a while now but nobody seems to know anything about them.
Personally I'm skeptical about Edelbrock's claimed flow numbers considering their port volumes and valve sizes.

 

I'm with ya on the Edelbrock heads too. If they really do what they say, its not a bad deal. By the time you work a set of LT1's, new valves, springs, bowl blend etc...you're looking at around 8 - 900 bucks or so. Who the heck knows what to do! Not all of us have 2000 for a set of AFR's.

 

what are the part numbers on these 2 head systems the edelbrock and the trick flow

 

how about this head and cam package or is there better stuff for the price?
The edelbrock heads and cam?
power package?... http://www.edelbrock.com/automotive/index.html

 

Generally single pattern cams like the one in that Edelbrock package are not used on LT1s.

 

The trickflow heads are intended for a blown or stroked application. They have a 62cc chamber, which will lower compression 1 point on a stock short block. They flow well, and there is meat in them to port, but unless you've built the engine with dome pistons, or are building a blower combination, they wouldn't be right for you.

The Edelbrocks are intended to be used on a stock short block. With Edelbrock's cam, they claim 75 HP. I haven't seen or installed any Edelbrock LT1 components myself, so I couldn't back up that claim. Those heads are their Etec 170's that have been drilled for reverse flow. I don't have the curve, but Edelbrock claims peak flow at .500" of 242 CFM on intake, 184 CFM Exhaust. Comparable to a good home ported stock casting. There isn't much room in them to get anymore

Their Cam is .525" on Intake and Exhaust, with 218 @ .050" for both. 112 lobe seperation.

Looking at the flow data, it would seem to me that cam with more of a split would be better. Maybe a CC305 or CC306. I don't have a dyno or a degree to say that with confidence though.

Scott

 

Anybody else?

 

Listen to AI, he speaks the truth.

Also, don't forget about AFR.

All depends on your plans and goals...

 

It would be great if edelbrock would come out with a victor jr series lt1 head. Im sure that would turn out ot be a great head.

But when I talked to one of the reps at a carshow. He told me currently they arent working on one.

I bet they are using the current lt1 heads as a test pilot. But they should of went more wicked. But I have a feeling most these aftermarket companies dont realize that most of us lt1 guys, want to get serious. And dont care if the car is streetable. Because were looking for somthing much more serious.

Heck the lt4 head is for for the street guys. If we want to go bigger, we dont have many other choices other then AFR. Although the new trickflow head will flow better then the lt4 and edelbrock heads though.

I dont know what your goals are for your car. But I would either remove your current heads and send them out to be ported. Or buy a set of used LT1 heads for like 200-300, and send those out for port work.

 

What Phils said is true.

I really want to have a look at those TFS heads, man I wish they were the R series ports rather than the standard 23 deg ports, but as they sit now they are close to a LT4 casting (better than those numbers posted above though) with more room to grow if you want to have them ported.

From what I hear nobody has put a valve bigger than a 2.02 in the things, which is really a shame because those heads could do well over 300cfm with a 2.055 or 2.08 valve.

Sadly they have the same downfalls as a AFR casting in the port so you have to deal with that, still the only really awesome off the shelf heads are the 215RR AFR's but the again most guys who are going there are going with a converted SBC casting.

If it was me I would look at the AFR 195's or the TFS heads to start with on a street stroker, then maybe 210 or 220's for a HR motor that is going to be bad ***, if you want to go SR and spin some R's then the 227's (off course all of these hand ported) would be the way to go.

Bret