Awesome pictures of reverse flow induction system

[cleverlever]

Anybody else have any photos of a Reverse Flow Flathead?




(photos courtesy http://freeservers.com/photo7.html, #24 & #38)

Imagine the visual impact of an OHV small-block with a rack of four motorcycle carbs bolted to the exhaust ports of each head and exhaust headers running out of the intake ports.

[ol'rodder]

<font color='#810541'>I have seen pics of other flatheads, well at least one other, set up to run reverse flow. It was done to overcome the exhaust flow restriction of two cylinders using the center exhaust port. I don't think it was too successful but sure is neat looking. It will take more than a reverse cam to run a small block that way. Remember the flathead had intake and exhaust valves of the same size whereas the chevy will end up having a 1.5 or 1.6 intake and a 1.94 or 2.02 exhaust. Overhead valve engines tend to work best with exhaust valves 0.8 the size of the intakes. But it sure would turn heads. Remember the mid 1960's small block Ford Indy engines were set up that way but they had special head castings.....I always loved that look.

[51ratt]

<font color='#810541'>man, i want my mopar flathead like taht SO SO BAD

[johnnyxcliche]

<font color='#FF0000'>the first thing I thought of was valve size...do the old buick nailheads have equal valve sizes?...I've got an old 201 Chrysler flathead I'd use as a guinea pig, provided the block is still usable...

[ArtGeco]

<font color='#810541'>Negative affects of the exhaust (heat) smashed against the carbs like that? anybody?

[c.d.embrey]

The negative effect is that the intake ports are not water cooled like the exhaust ports. So ya can end up cracking blocks. This was a problem when doing this to Model As/Bs.

Shure looks cool and may even run better?for as long as it runs.

Chuck

[draggin ass]

my mind has been blown..... i really havent heard anything about this ever, let alone see it!


wow....*keeps staring*

[johnnyxcliche]

<font color='#FF0000'>the intake on B and RB chrysler big blocks I believe has coolant jackets around them...something to consider, if I remember correctly...

[JGMagoo65]

There was a reverse flow flathead pictured in Hot Rod Magazine in the late '50s or early '60s. It had 6-carbs. One carb at each "exhaust" port on the side of the block, and 8-straight stacks sticking out the top. One of the main goals in any engine is to keep the intake mixture cool and thus preserve density. Running the intake through the block and the water jackets would definately 'heat' the charge and cost you density. You will notice today all the 'pains' that are taken to keep the intake charge cool. "Air Gap Manifolds" plastic intake runners, outside air intake, aftercooling, intercooling, etc. etc.

[51ratt]

<font color='#810541'>draggin........... what are you talkin about????????? i was talkin to you about reverse flowin my flathead six!!!!! just for the looks of it all... not much of improvement on power... but looks KILLER!