350sbc reduction ID help

Automotive powered airboat discussion.
Bowhnt
Southern Airboat Member
Posts: 4
Joined: Mon Jul 02, 2018 5:31 pm

350sbc reduction ID help

Postby Bowhnt » Mon Jul 02, 2018 5:37 pm

After much internet search and a long talk with the guys at whirlwind I’m not sure what I have and what I need. I was shopping for a new prop for my first boat and spoke with whirlwind and they weren’t sure exactly what kind of reduction I had so I’m hoping I can get some input.

I have an 84 panther with a 350 sbc and some sort of reduction. The only markings I can find are for Warner gear division Muncie Indiana and The number F1-68 stamped on the the housing.
Hoping I can get some input on what it is and what the reduction would be or any other info Thanks in advance!
Attachments
A7E20AC3-B55C-4C71-B8EB-2209145141DD.jpeg

User avatar
JAMES
Site Supporter - II
Site Supporter - II
Posts: 8569
Joined: Wed Aug 22, 2007 10:31 pm
Location: cocoa
Contact:

Re: 350sbc reduction ID help

Postby JAMES » Mon Jul 02, 2018 5:47 pm

Bill roberts use to take them which is an AC GEARBOX and convert the gears to work with sbc caddie ect they are great boxes you will need the adapter if you dont have it but by your post i assume you do they are 1.5 1.7 if im not mistakin works well with caddies and bb engines the sb need more gear jmo but they will work with your set up fine run a 2.0 or ex 3 bld u be good to go
https://m.facebook.com/321ccc/?ref=bookmarks Wp383 268 rotator 3 bld WT/EX 14.4 perdator

Bowhnt
Southern Airboat Member
Posts: 4
Joined: Mon Jul 02, 2018 5:31 pm

Re: 350sbc reduction ID help

Postby Bowhnt » Tue Jul 03, 2018 1:57 pm

Much appreciated ! That helps a lot. Now I can finally get a prop ordered. Now just to figure out my starter issues. Tried the three different 350 sbc starters and can’t seem to get a good fit. They are all staying engaged tearing up the flex plate.

Bowhnt
Southern Airboat Member
Posts: 4
Joined: Mon Jul 02, 2018 5:31 pm

Re: 350sbc reduction ID help

Postby Bowhnt » Wed Jul 04, 2018 6:48 pm

JAMES wrote:Bill roberts use to take them which is an AC GEARBOX and convert the gears to work with sbc caddie ect they are great boxes you will need the adapter if you dont have it but by your post i assume you do they are 1.5 1.7 if im not mistakin works well with caddies and bb engines the sb need more gear jmo but they will work with your set up fine run a 2.0 or ex 3 bld u be good to go




What type of oil is recomended for it and how much? Are most guys running aviation oil?

User avatar
skinnypockets
Site Supporter - IV
Site Supporter - IV
Posts: 968
Joined: Mon Oct 18, 2010 8:12 am
Location: St Cloud, Fl

Re: 350sbc reduction ID help

Postby skinnypockets » Wed Jul 04, 2018 9:10 pm

Bowhnt wrote:Much appreciated ! That helps a lot. Now I can finally get a prop ordered. Now just to figure out my starter issues. Tried the three different 350 sbc starters and can’t seem to get a good fit. They are all staying engaged tearing up the flex plate.


On the older blocks it was sometimes necessary to add shims under the starter to get proper clearance. You should be able to find them at NAPA.
:rebel: :florida: :old_glory:
I'VE DONE SO MUCH WITH SO LITTLE FOR SO LONG, I CAN DO ANYTHING WITH NOTHING!

13.6 Alumitec, 350 Chevy, Rotator Gearbox and 6 Blade Warp Drive

Bowhnt
Southern Airboat Member
Posts: 4
Joined: Mon Jul 02, 2018 5:31 pm

Re: 350sbc reduction ID help

Postby Bowhnt » Thu Jul 05, 2018 10:46 am

skinnypockets wrote:
Bowhnt wrote:Much appreciated ! That helps a lot. Now I can finally get a prop ordered. Now just to figure out my starter issues. Tried the three different 350 sbc starters and can’t seem to get a good fit. They are all staying engaged tearing up the flex plate.


On the older blocks it was sometimes necessary to add shims under the starter to get proper clearance. You should be able to find them at NAPA.
:rebel: :florida: :old_glory:




It took me a while bit finally got it! Boat is pretty much ready to run once I confirm how much oil and what kind for the gear box.

User avatar
kwanjangnihm
Site Supporter - IV
Site Supporter - IV
Posts: 1722
Joined: Sat Mar 30, 2013 8:23 pm
Location: Bartow FL

Re: 350sbc reduction ID help

Postby kwanjangnihm » Thu Jul 05, 2018 11:22 am

Bowhnt what size prop you looking to run? (diameter, # blades, model)
" I don't care who you are back in the world, you give away our position one more time, I'll bleed ya, real quiet. Leave ya here. Got that? "

User avatar
JAMES
Site Supporter - II
Site Supporter - II
Posts: 8569
Joined: Wed Aug 22, 2007 10:31 pm
Location: cocoa
Contact:

Re: 350sbc reduction ID help

Postby JAMES » Thu Jul 05, 2018 11:01 pm

The oil its self im
Not sure but i thought they was built to run with oil pressure from the engine not sure on oils ect make a tread asking what oil for the lycoming box used on sbc
https://m.facebook.com/321ccc/?ref=bookmarks Wp383 268 rotator 3 bld WT/EX 14.4 perdator

User avatar
JAMES
Site Supporter - II
Site Supporter - II
Posts: 8569
Joined: Wed Aug 22, 2007 10:31 pm
Location: cocoa
Contact:

Re: 350sbc reduction ID help

Postby JAMES » Thu Jul 05, 2018 11:03 pm

Air roberts on hear is who u need to talk with also turtle aka robert wright been running one for yrs yrs
https://m.facebook.com/321ccc/?ref=bookmarks Wp383 268 rotator 3 bld WT/EX 14.4 perdator

SWAMPHUNTER45
Site Supporter - III
Site Supporter - III
Posts: 2493
Joined: Thu Nov 21, 2013 11:38 am
Location: Naturecoast, Florida

Re: 350sbc reduction ID help

Postby SWAMPHUNTER45 » Fri Jul 06, 2018 7:18 am

No one has more hours on a Roberts than the (Turtle) screen name PONTOON OUTLAW !

That dude has put the Roberts drive to the test it is mated to a Branch Series 3, 507 cubic inch Cadillac.

User avatar
90chevy396
Southern Airboat Member
Posts: 237
Joined: Sun Mar 09, 2014 11:11 pm
Location: port saint john

Re: 350sbc reduction ID help

Postby 90chevy396 » Tue Jul 10, 2018 9:56 pm

Wouldn’t mind having that box on my Buick let me know if you decide to go a different route


Sent from my iPhone using Southern Airboat
13' LASER W/455 BUICK DD SINGLE FRONT DOUBLE REAR WHIRL WIND PROPELLER


Return to “Automotive Power Only”

Who is online

Users browsing this forum: No registered users and 23 guests