High CFM heads - What would you chose?
- Thread starter mini
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MOPAROFFICIAL
Oogliboogli
Weld them up, longer valves, re matching the enchilada after the warp, stands.
Which all equates to too much work.
Only if they were the best option.
Only if ya had buckets of money , tons of free time and something to prove
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yellow rose
Overnight Sensation
MOPAROFFICIAL
Oogliboogli
No...I'm late to the bus, as usual.
I missed some killer deals yesterday for the same reason. working on ****, damn it!
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I can’t seem to get all my pictures on the computer to post up. I have the W5 next to the Edelbrock intake port side view comparo.
Im gonna check my phone now that I’m thinking of this....
Oh yea, oh yea! Bottom shots, W5 chamber first, then A stock Edelbrock
Im gonna check my phone now that I’m thinking of this....
Oh yea, oh yea! Bottom shots, W5 chamber first, then A stock Edelbrock
The aluminum is garbage aluminum. No one has come forth saying they could weld it up. The head suffered porosity issues and got the bad rap that never left them.
The crap aluminum and spring seats are the heads draw backs. If the seat wasn’t where it is and the aluminum casting and the metal itself was good,,, this would be a super head. Who ever did the casting for Chrysler & MP stuck it in there *** twice.
360duster
Well-Known Member
nobody mentioned the W7/W8/W9.....i know, not cheap....and some more work than the standard port.....but undoubtedly some potential there ;-)
Michael
Michael
Those heads require porting to get the big numbers and a lot more money for the required rpm numbers to make them work to their potential. Going this route you better start with a Ritter block and the needed work to it. I’m guessing you could probably get away with 20,000.00 if you stuck to a budget.
I guess we should ask you what your budget is and how fast you want to go at what weight and track.
yellow rose
Overnight Sensation
They will go mid 300’s if you work them. Took me a good bit of time to get mine there. And some welding.
Like I mentioned, if I was doing another set I wouldn’t pick up a grinder until the seats had been changed out, the spring pockets welded up and the guides replaced with a .500 OD piece that wasn’t the junk they come with.
If you get a 2.125 valve in there I’m confident they’d get 400 or close to it.
I had a 2.100/1.600 in mine and no way would I use that big 1.600 valve again. In fact, you may be able to get a 2.150/1.500 combo but it starts getting tight.
yellow rose
Overnight Sensation
Mostly I miss the bus! With so many threads it’s hard to keep up.
PRH
Well-Known Member
So, the numbers from the local bench on the 4.030 bore..... don’t break 300?
(Hard to see what the number actually is)
I’m assuming you know why the first set of numbers from the 4.125 bore stop at .650 on the intake port.
Do you know if it’s the same pair of ports that got tested on both benches?
IMO, that is the best high performance street head going that the average guy can take OOTB, look over and just simply make power. This is what I would recommend for 90%+ to the world seeking a really nice to a hell of a hot rod on the street.
Have you ever ported a set of W5’s?
I still have a bare set.
This set gave up the ghost in a single port, so porting was stopped there. I’m not seeing these on the net with flow numbers. I’ve read some high peak numbers in the 330 to 345 area. This is what I was sort to of hoping for to top a 434 w/a sizable cam. 9’s in the 1/4 was the goal to start with. I think these heads are capable as they are. However, not the point here.
@mini and the rest of FABO;
Stating your goal in a track time or specific power level with the CID of what ever engine and what ever car w/it’s weight & trans your going to run is really the first part of the math equation.
The use of MoPar’s W series head is a good route though the upper units (7&8’s- IDK about the 9’s) are not only expensive for an average guy but can require some odd ball parts. Like mentioned above, if you don’t have a good non stock block, I’d say don’t bother.
If we go the route with the layman’s math on head flow cfm to get to a theoretical power level, cfm X’s 2, that 300 cfm head is 600 hp capable and then some. This is a trick flow head and it does have gigantic ports.
I’ll state for the record that IMO the best thing you can do is get the best cylinder heads possible for your build but IMO, there is a limit. An example would be a gigantic port on a 318.
So, what are you looking to do?
When you ask the question, have a goal in mind and details of what you have or want to get.there are a lot of capable people here.
Correct in the local bench. I believe the high number is 298 cfm. Quality and capabilities are not in question from the shop. There well established for decades with many years on the NASCAR & drag track backing there work. I’m also not bench racing flow benches. I completely understand this would be a bad thing to do. I did share results with the porter. Nether of us are disappointed or surprised really. There is a big difference in bore size going on here.
I will get a clearer picture this evening after work today.
Yes, you assume correctly.
I don’t know for sure on the tested ports.
PRH
Well-Known Member
Any idea what Ryans CNC program that Jeff had for them flowed?
The engine shop is family run/owned. The grandson of the shop was schooled by Joe Mondello at his head porting school way back when and has taken off running with it. He offered to tweak the head further but I declined. The wallet grew thin and ya GOTTA pay the man.
He has another set of my heads now. Porting the “Other” W5 heads is a low priority right now. But they would be next and then the iron W2’s. Then I’m done.
He has another set of my heads now. Porting the “Other” W5 heads is a low priority right now. But they would be next and then the iron W2’s. Then I’m done.
Sorry, no. I only heard (AKA-read) about his CNC program for other heads. I really don’t remember much of anything on them.
PRH
Well-Known Member
I think that’s how the w5’s that Don(B3422) had on his old Duster were done.
PRH
Well-Known Member
I hate to say this publicly, I can’t remember who I got the first set from here on FABO. Second set I got from Sam. There are a few fellas here that ran them. They have the rest of the wealth of information on these heads.
Matts440
Well-Known Member
I wish when I was building my current setup I had the money and would have gone with the victor heads. Maybe trick flow will come out with a race type head.
The small block TF units are capable. Your looking to make more than 600hp?
PRH
Well-Known Member
The W5 is the small block equivalent to the Stage 6 for the BB.
I fixed piles of those things.
At the end of the stage 6, they had somewhat gotten it sorted out.
The Zeus casting heads had most of the really troublesome crap taken care of.
Then there was the version of those castings that got sent to Chapman.
Those were really nice heads...... but MP priced themselves right out of the market.
They were over 4K for a pair of bare castings that needed custom valves and rocker gear.
I fixed piles of those things.
At the end of the stage 6, they had somewhat gotten it sorted out.
The Zeus casting heads had most of the really troublesome crap taken care of.
Then there was the version of those castings that got sent to Chapman.
Those were really nice heads...... but MP priced themselves right out of the market.
They were over 4K for a pair of bare castings that needed custom valves and rocker gear.
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