All Small Six Anyone know anything about this 144 engine?

[JoeCrozier]

Specifically modifications done to it that give it the RPM or power? Some of it is visible. I.e. multiple carbs, looks like different exhaust, etc... but anyone have any details on what else they did? Best guesses? How would they rev so high?

 

[Jmustang_65]

So Lynx manifolds in Australia use to make a manifold to cut up the log head to add DCOE Weber's. I can't find a picture of it now.
Similar build to what I can see on the video below.
Close build thread. https://fordsix.com/threads/new-tri-weber-engine-build.81672/

The 144 is short stroke. So it can get to higher RPMs.

 

[62falcon wagon]

Also solid lifters which means no valve float Italians build 4stroke v-twin pushrod motorcycles that will hit crazy rpm’s and a v-twin is terribly unbalanced.
An inline 6 is naturally balanced if you balance the rods and pistons on top of that it’ll spin like crazy high. Give it some breathing and enough fuel and air -whoopie!! 144 only has 4 mains though so there are limits.

 

[aussie7mains]

Also solid lifters which means no valve float Italians build 4stroke v-twin pushrod motorcycles that will hit crazy rpm’s and a v-twin is terribly unbalanced.
An inline 6 is naturally balanced if you balance the rods and pistons on top of that it’ll spin like crazy high. Give it some breathing and enough fuel and air -whoopie!! 144 only has 4 mains though so there are limits.

90 degree is well balanced, other included angles are not, especialy the narrow angle like the harley. The ducati vee twins will rev, but they are desmodromic and 4 valve. Motoguzzi has pushrod vee twins that will rev. The difficulty with any pushrod is the weight of the valve train and the stability of the long pushrods, so a short block like a 144 has a short pushrod which helps. As to 4 main bearings, quite a few 4 mains engines have been made to rev. Its about getting the air in and out.

 

[powerband]

... look up Philson Falcon:
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Ford donated the 4 main 144's in '59 for hand fabricated American sports car with the engine canted over for lower CG competing against Jags, AH's, Lotus class racers etc ... ... , still seen on the track with a 200 and AL head . " @ 7K all down long backstraight "
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.have fun

 

[62falcon wagon]

Yep you got to feed it.

 

[JoeCrozier]

Yep you got to feed it. View attachment 24644

That looks gorgeous. Is that the 'large log' head? What carbs did you put on it?


Also, as far as the high rpms everyone mentioned. Sounds like its just naturally able to handle the high rpm's because of things like solid lifters, short stroke, inline 6 etc... but are there any other modifications he probably made? Balance everything and then.... send it....?

 

[62falcon wagon]

s. Is that the 'large log' head? What carbs did you put on it?

Yeah it’s a large log. Weber 40idf for primary and 34 ict’s progressive secondaries. On vw intake manifolds.
Anybody serious about building an engine for high rpm would almost surely balance everything inside and careful port work also. Source some forged pistons which can come from surprisingly diverse origins. I used Chevy pistons. Forget which (4cyl) engine but wrist pin, deck height matched and a small overbore was done. Perfect fit.