[indy2000]

afr and tw are not immune to need of machine work

 

[Ed Curtis]

afr and tw are not immune to need of machine work

True - especially when purchased by a catalog number...


:wink2:

 

[turbo2256b]

if i add up their flow numbers and compare to my ported DOOE heads the DOOEs flow 40 cfm more. the ford head beats them on low lift numbers. over .500 lift they dont do much as the ford heads. port volume is much greater which on a small engine requires more rpm to be effective which usually results in loss of low end power. other thought is what intake are you going to use a VrJr only flows about 180 CFM bolted to a cylinder head flowing 235 CFM at a higher air speed than these large port heads on a 302.

 

[Ed Curtis]

A ported set of 300+ CFM DO03 heads?

:bs:

 

[turbo2256b]

A ported set of 300+ CFM DO03 heads?

:bs:

what I am saying not max flow but total air flow. total air flow is what i look at max air flow might be higher but low lift numbers might be lower add it all up
.1 , .2 ,.3 ,.4 and .5 lift flow numbers this is what really counts.
Once flow numbers dont jump very much between lift points is because air flow is going turbulent

 

[Ed Curtis]

what I am saying not max flow but total air flow. total air flow is what i look at max air flow might be higher but low lift numbers might be lower add it all up
.1 , .2 ,.3 ,.4 and .5 lift flow numbers this is what really counts.
Once flow numbers dont jump very much between lift points is because air flow is going turbulent

Wow.... :surprise:

Adding up the incrementals for comparisions...

Low lift number(s) is what really counts...

When flow numbers don't jump - the port is turbulent...

Dayum... I'm throwing away my flow bench. Been doing this "porting thing" wrong for forty years.

:nerd:

 

[turbo2256b]

myself been porting heads for 54 years have learned and embraced things over the years learned by persons that had worked for companies that did port work, designed heads, had their own dynos to test theories, did experimental work for the big three, most dont have these advantages.
learned a lot about bigger isnt necessarily better but matching up air flow to usage, learning a lot about intakes air flow bolted to cylinder heads, learning the left side of an intake might need port work a bit different than the right side do to the heads port configuration to acquire the most even air flow. how air speed effects cylinder filling. how max lift is only reached once in a cycle other points twice. how as the piston pulls air through the valve opening as the piston drops might be real close to flow numbers but as it rises for the compression stroke how much does the flow or how soon does it drop or stagnate. could it actually blow some back into the intake valve.

 

[Ed Curtis]

... and yet....

You are incorrect in your methods!

 

[turbo2256b]

ed you ever worked on a set of brodix 18x chevy heads

 

[Ed Curtis]

ed you ever worked on a set of brodix 18x chevy heads

Nope -

Try to avoid the GEN1 small block Chevrolet projects. That's a whored up market.

 

[cab0154]

any head with big low lift flow is highly suspect for reversion. just my opinion.

 

[Alexender]

Those ebay aluminium 600$ Heads are way better than any iron heads you will everr find.

I bet they make great power on a 302, they are 190cc with kinda big valves, and for the price 600$ for both heads, thats super cheap.

Thats 300$ per head, very cheap. I bet they make 350 fwhp on a 302 with good single plane intake .575 cam and 650 DP Carb with big long tubes headers.

If i was to do a budget build 302.

-Those 190cc Ebay heads
-Victor Jr intake
-TFS Stage 2 Camshaft
-Holley 650 DP carb
-1 3/4 BBK Long tubes

 

[droopie]

Those ebay aluminium 600$ Heads are way better than any iron heads you will everr find.

I bet they make great power on a 302, they are 190cc with kinda big valves, and for the price 600$ for both heads, thats super cheap.

Thats 300$ per head, very cheap. I bet they make 350 fwhp on a 302 with good single plane intake .575 cam and 650 DP Carb with big long tubes headers.

If i was to do a budget build 302.

-Those 190cc Ebay heads
-Victor Jr intake
-TFS Stage 2 Camshaft
-Holley 650 DP carb
-1 3/4 BBK Long tubes

Almost my combo. Except I have a Weiand Stealth and Commander 950 EFI. Car picked up .5 in the 8th over some ported E7's. And mine were allegedly 210cc 2.02/1.60 heads.

With the E7's it made 275 to the wheels. I would have to bet with the Procomps it's putting 320ish down now. It is noticeably harder hitting.

 

[Ewilson]

Does anyone have any real info on the sve heads? All the posts are usually just talking about them from what lmr has listed. I haven't actually seen anyone post anything about real numbers or durability of them? I'm sure someone has actually used them and has some info?

 

[Nitrous Al]

I think the message is stay away from them. Isn't the hot setup right now the TFS 190 11R 56cc heads and a cam from Ed? If I keep my 302, I'm going with those heads and cam.

 

[taco]

If they flow the 250 or so cfm that lmr claims and the quality is adequate they sound like a great deal. The problem is that I have seen nowhere that verifies any of that. I have seen no independent flow bench numbers, no real reports on the quality either. Not even a 1/4 mile time or chassis dyno numbers.

From what I understand they are a knock off of the edelbrock performer rpm head. They flow numbers lmr are similar to the edelbrock numbers so the flow MIGHT be legit.

Yes the 11r 190 is the hot setup now. They seem to be the magic head that works well on everything from a stock shortblock to a 408 stroker. But this head isn't really in the same class as an 11r. The main competition for the 11r is the afr 185 not the sub 1k chinese heads.

The main competition for this head is, flotek, pro comp, and similar ebay type heads. The closest competition from a main stream head company would be a trick flow twisted wedge or the e street from edelbrock.

 

[tjm73]

If they flow the 250 or so cfm that lmr claims and the quality is adequate they sound like a great deal. The problem is that I have seen nowhere that verifies any of that. I have seen no independent flow bench numbers, no real reports on the quality either.

This is the problem I have with them too.

 

[indy2000]

buy a set, send to independent tester, pay for that

then report the data here

its just that easy

 

[kjb302ho]

I used 3 sets of the flotek heads. A great cylinder head for the price. Better springs, arp studs and two piece guide plates are needed though. But after that, surprised me every time.

Trickflow track heat lt headers and the magical almighty b303 cam 301hp to the wheels

312hp/321 torque after realspeed tune.

Just because it isn't popular doesn't mean anything to me.

 

[Steve69]

Just finished installing these on my 93 the sve heads. Haven't driven it yet waiting to get my exhaust finished. Looks like good quality I used trick flow 1.6 roller rockers and has to do some measuring for pushrod length. Not sure why the other guy is saying that you have to take an assembled head to the Machine Shop.

What Cam and specs are you running with the SVE heads?