337's for 65 case alteration to 85 jugs

[Ragwing nut]

Re: 337's for 65 case alteration to 85 jugs

Since the stroke stays the same, but you increase the bore it has to have more displacement. It should be 190 cubic inch instead of 170.

same displacement as 85 was what I meant referring to Steve R post.

[3Dreaming]

Re: 337's for 65 case alteration to 85 jugs

Same displacement, but not same HP, techinally closer to 75 hp with 65 carb and intake which is what a C75-12 is that was used on some Luscombe's.

Since the stroke stays the same, but you increase the bore it has to have more displacement. It should be 190 cubic inch instead of 170.

[Leenicklas]

Re: 337's for 65 case alteration to 85 jugs

I would like to know if you have or know of a 337 approving milennium cylinders on a 75 case?

[Ragwing nut]

Re: 337's for 65 case alteration to 85 jugs

Does that give you the same HP and cubic inches as a C-85?

Same displacement, but not same HP, techinally closer to 75 hp with 65 carb and intake which is what a C75-12 is that was used on some Luscombe's.

[d.grimm]

Re: 337's for 65 case alteration to 85 jugs

I’ve had experience with a C-85 breaking the case studs, will this make
the A-65 case more prone to this?

[Nefj40]

Re: 337's for 65 case alteration to 85 jugs

Luscombe link

http://www.bowersflybaby.com/tech/A.65%20to%20C.85%20cylinders.pdf

[woodmw]

Re: 337's for 65 case alteration to 85 jugs

Would you consider posting them on the website? In the tech section?

[SteveR]

Re: 337's for 65 case alteration to 85 jugs

Does that give you the same HP and cubic inches as a C-85?

[baldy]

Howdy, I am an A&P/IA and I have 3 337's aprovved to modify 65 cases to 85 cylinders 2 are for taylorcrafts and were aproved by the Scottsdale FSDO and 1 is for a Luscombe and was approved at the Dallas fort worth FSDO, it is an easy modification with no weight change and uses the same crankshaft cam and lifters, if anyone is interested they are FREE just need postage. you can contact me at [email protected] adios for now from baldy/pilotsharetheride