Crossflow Epiphany!

Compact Wedge
9.2 CR
1.80" intake
Intake port diameter 1.63"
port lenght 4.5"

50% flow efficiency
1.50" exhaust
50% flow efficiency
 
NICE HEAD! :shock:

That head on a 200 will make a killer high rpm six.
I ran the program with a small Vortech supercharger and all I have to say is you had better HOLD ON!!! :twisted:

A Z06 Vette wouldn't stand a chance!

John
 
Hang on. I'm getting there. I had a crisis at work to fix today so didn't get as much time as I wanted. BTW, I found off the shelf pushrods to fit this puppy. Instead of the $80 set of custom Comp pushrods, these cost a whopping $1.29 each!

John, the flow efficiency may be even higher than 50%. I'm being conservative. With a stock cam and decent intake/exhaust 170-175 hp is not our of the question. In the simulation, bigger cams and carbs take it easily into the 1.1 - 1.2 hp/ci range!

Block mods complete. Needs decking.
200xflow3.jpg

Here's the first mockup.
200xflow.jpg
 
Nice! I like the '65 Color scheme. Now you've done it. I want to build TWO I6 engines: One for high MPG and a cross flow 200 for high MPH. *G*

With the little 200, it's so easy to pull and install engines...

I just need to get my hands some decent blocks!

Keep up the good work!

Dean T
 
You only need ONE engine for both. :D The Crossflow should be a lot more fuel efficient than the old log.

The color scheme resulted from a lack of Ford Blue on the shelf! I did have lots of gloss black, though. It's ahrd to see but the valve cover is a two part treatment. A texture was sprayed on followed by a satin red enamel. Looks real nice! Just wait until the CD175's and a pair of chrome air cleaners go on!
 
Wow! you did it. It looks like you have had to chop through the side of the original side of the block for push rod clearance. Just curious what the engine looks like on the other side... Are you bolting the piece of steel to accomodate the Xflows wider face into place?

Kirk
 
Kirk, this one is tack welded, but the other one will be bolted and sealed with JBWeld. One piece of steel, and four plugs are all you need on the block.

On the head we will seal off six water passages, open up three others, and modify the gasket. We'll also drill open one water bypass and modify the gasket for that as well.

Except for decking the block and head, all of this can be done in your own workshop.

I also found an electronic distributor short enough to fit. This is a Duraspark I found on 1974 Ford Mavericks.
DurasparkI.jpg

It uses the regular cap and rotor and will give me enough overhead clearance to more easily fit the manifold. I'm going to fire mine with a 4pin GM style module.
 
Sweet... Just when I'm really considering jumping on the SB6 bandwagon, something sweet comes along... I likes it....
Evan
 
this is realy amyzing :shock: :shock: :shock:HE DID IT !!!!!!!!!!!!!!!!
btw , question : the headgasket must be modified , ore cutup ore new hole.s ? how about when you got the good sizes for the gasket , and draw it ore scan it , and then cut them out of messing ore copper ore aluminium ? is this possible, np for me , im into laser cutting , give me the sizes and when possible i cut new head gasket. just give me a note !

the head is aluminium . so when welding up hole you wil need a alu welder,for the rest it is drilling and tapping ?
this is realy a great job , after all this time the future will be a crosflow !!
THX for the man who did put somuch time into it and make it work , a real 6 inline specialist don,t give up :P
time to line things up for what you wil need for the setup so people can order already a CROSSFLOW head from aussie !!!!!!

head: 1 crossflow
pushrods:
headers:
lifters:
dizzy:
gaskets:
decking the head and block : is this nessesery ? the block?
crossflow cam :?
fill me in when i forgetting some things !!
 
ahhhaahh beer and aussie chicks ?
i dont drink , and gotten already a great chick[ she . drinks what 3 people otherwhise drink on 1 evening :shock: ] ] . whats the difference between a aussie chick and a holland chick ?

btw you can already look for me for a crossflow head and the other parts that are needed , give ma a globel cost price and i will send the money over with the other order !
 
Harrie, Good list.

head: 1 alloy crossflow (not the iron version), valve cover, and headbolts
pushrods: 12 from pre-85 Buick V6 (.060" oversize)
rockers: stock crossflow. Crane's pushrod guidleplate adapter kit for the 351C/429/460 will also fit for roller rockers.
headers: Crossflow (I am going to use a modified stock manifold)
lifters: Ford small block 289/302 or 3.8 V6
dizzy: Points or Duraspark I. Duraspark II is too tall.
gaskets: Crossflow head gasket set, US block gaskets
decking the head and block: is this nessesery ? YES for both.
crossflow cam: the stock EFI or Carb cams will work well on a daily driver.

The conversion uses the Crossflow headgasket with three holes added. The water passages can be filled by welding but I'm certain that JBWeld or similar can be used for that section.

Don't get into a great hurry just yet. Let me finish these two and bench test them. Let's see how well they run and make sure there are no sealing problems. All the details will be spelled out when I post the 200 Crossflow page in the Tech Section. If this works out, maybe you guys can talk AzCoupe into stocking modified Crossflow heads and gaskets. :wink:

Guys, remember - this can be done at home, but is NOT a bolt it on kind of conversion. You MUST remove and disassemble the engine in order to do the machining, grinding, and fitting.
 
This just keeps getting better! I can hardly wait to hear about the results.

Regarding distributor choices, could a '67-'73 dual advance point distributor converted to electronic ignition (Pertronics) with stock cap and rotor be used?

Too bad the I6 D II distributors weren't like the 302 version - their dizzy's spring clips used to secure the cap adapter are the same clips used for the smaller dizzy cap.

Okay, now to find a good rebuildable 200 block...

Regards,

Dean T
 
HI JACK,good work on the project.if your feeling rich and want to go dohc
have a look at www.krogdahlheads.com they say they can do a twin cam
conversion for 65 onwards ford sixes.looks like they use a few bits off the
old 18RGEU TOYOTA TWIN CAM.bit to pricey ,but good figures.

cheers dave 67xr6
 
Wow, if that's the preview, I can't hardly wait for the real thing! It really looks simple (now watch as I totally screw up when I get everything *G*).

BTW, How much lighter is the alloy cross flow head from the iron US head?

Thank you for sharing all the info.

Dean T
 
Don't know, but the Aussie alloy head is over 50 pound lighet than the cast ron cross-flow. Should be lighter than the US head by over 60 pounds.
 
In all Seriousness,

I am attempting to spend next spring semester studying abroad in OZ. I imagine I could fit a OZ head or 2 In a Duffel bag for the return trip.

That might work well into my timeframe, anyway.
 
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