BIG BLOCK FORD
Would you like to react to this message? Create an account in a few clicks or log in to continue.

1966 mustang 289 flex plate????

+5
FalconEh
dr's wife racing
maverick
richter69
jason
9 posters

Go down

1966 mustang 289 flex plate???? Empty 1966 mustang 289 flex plate????

Post  jason July 7th 2014, 8:32 am

I'm working on this 66 mustang for a guy and the starter is bad, I also noticed the flex plate is chewed up. I pulled the trans. Last night. I counted 160 teeth on the flex plate. I know the 157 is compatible. My question is do I get a 0 balanced flex plate? I also noticed someone has drilled it opposite the counter weight. There's about (6) 1/4" holes not all the way through. My other question is does anyone make a 160 tooth ring that can be put on?
jason
jason

Posts : 220
Join date : 2009-08-14
Age : 52
Location : superior wi

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  richter69 July 7th 2014, 9:05 am

Should be a 157
richter69
richter69

Posts : 13649
Join date : 2008-12-02
Age : 53
Location : In the winners circle

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  maverick July 7th 2014, 10:29 am

If the 289 has a stock rotating assembly, you'll need a weighted 157T flexplate. The drilling makes me think somebody has either rebalanced or TRIED to rebalance for some reason...maybe incorrect flexplate. Are you SURE about the 160T count?
maverick
maverick
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 3059
Join date : 2009-08-06
Age : 72

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  maverick July 7th 2014, 11:07 am

Lots of little known details about '60's era small block balancing here: fordsmallblock.com/PDF/smallblockbalancing.pdf
maverick
maverick
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 3059
Join date : 2009-08-06
Age : 72

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  jason July 7th 2014, 11:26 am

I counted it twice, it's 160
jason
jason

Posts : 220
Join date : 2009-08-14
Age : 52
Location : superior wi

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  maverick July 7th 2014, 11:35 am

That might explain the chewed teeth.
maverick
maverick
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 3059
Join date : 2009-08-06
Age : 72

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  richter69 July 7th 2014, 12:46 pm

Same
richter69
richter69

Posts : 13649
Join date : 2008-12-02
Age : 53
Location : In the winners circle

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  jason July 7th 2014, 1:23 pm

I think I'm getting closer. I can use the 157 tooth, and it looks like I have to use the 28.2 oz. flex plate. I just have to make sure it wasn't rebuilt and internally balanced.
jason
jason

Posts : 220
Join date : 2009-08-14
Age : 52
Location : superior wi

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  dr's wife racing August 21st 2015, 10:28 pm

Check your harmonic balancer
dr's wife racing
dr's wife racing
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 1655
Join date : 2009-08-20

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  FalconEh August 21st 2015, 10:40 pm

My understanding on SBF only 157 or 164 every flywheel or flexplate I have ever had has been either or, 164 starter on 157 FP/FW = eaten and vise versa. Where or on what did the 160 come from...unique, crossed over, not sure. All the old SB's were 28.xx or 50 balance (newer) or 0
FalconEh
FalconEh

Posts : 1448
Join date : 2014-08-21
Location : on the blacktop or in the mountains ????

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  supervel45 August 21st 2015, 11:01 pm

http://www.fordmuscleforums.com/c4-transmissions/502485-1964-260-v8-flexplate-160-tooth.html Old 260 V8 maybe?

supervel45

Posts : 4498
Join date : 2013-09-04

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  FalconEh August 21st 2015, 11:11 pm

Forgot about the 63-64 260 (early) C40Z-B /C40E-B is it a 10 3/4 bolt circle. could be a punched 260
FalconEh
FalconEh

Posts : 1448
Join date : 2014-08-21
Location : on the blacktop or in the mountains ????

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  supervel45 August 21st 2015, 11:33 pm

I am thinking someone may have balanced it on a 289 because of the holes, but that is just a wild guess?

supervel45

Posts : 4498
Join date : 2013-09-04

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  gmsmkr August 22nd 2015, 12:01 am

supervel45 wrote:I am thinking someone may have balanced it on a 289 because of the holes, but that is just a wild guess?

So the 260 wasn't 28oz balance?
gmsmkr
gmsmkr

Posts : 1364
Join date : 2014-06-22
Location : alabama

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  supervel45 August 22nd 2015, 2:07 am

http://www.ebay.com/itm/1963-Ford-Car-Flywheel-Ring-Gear-F-M-2-289-CID-160-Teeth-Galaxie-500-Custom-/221788897856?hash=item33a3a60240 This guy is claiming they came on 1963 289 2speed Galaxie's. It's an oddball deal, for sure.

supervel45

Posts : 4498
Join date : 2013-09-04

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  rmcomprandy August 22nd 2015, 12:01 pm

Almost ALL 289 engines which came in factory vehicles were OEM 28.2 in/oz externally balanced. The ONLY one different was the 289 Hi-Po which had a small hatchet weight behind the damper pinned to the timing gear on the crank.

Flywheel/flexplate counter-weight never changed on the OEM 289 engines

rmcomprandy

Posts : 6149
Join date : 2008-12-02
Location : Roseville, Michigan

http://www.rmcompetition.com

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  crittersf1 August 24th 2015, 11:58 am

Randy, what flex-plate was used on the Hi-Po engines?
crittersf1
crittersf1

Posts : 521
Join date : 2009-10-28

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  rmcomprandy August 24th 2015, 8:50 pm

crittersf1 wrote:Randy, what flex-plate was used on the Hi-Po engines?

A 28.2 in/oz 160 tooth flywheel/flexplate is used with some 5 bolt bellhousing engines. A 6 bolt bellhousing uses 157 tooth or 164 tooth, 28.2 in/oz or 50 in/oz flywheel/flexplate. (Except the Mustang II which used a 144 tooth 28.2 in/oz  flywheel/flexplate).
I think all Hi-Po's were 6 bolt bellhousing blocks with a standard shift trans; 157 tooth, 28.2 in/oz flywheel.

rmcomprandy

Posts : 6149
Join date : 2008-12-02
Location : Roseville, Michigan

http://www.rmcompetition.com

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  crittersf1 August 27th 2015, 8:52 am

Thanks Randy. Just tore one down that looks like it was assembled by a 2 year old.
crittersf1
crittersf1

Posts : 521
Join date : 2009-10-28

Back to top Go down

1966 mustang 289 flex plate???? Empty Re: 1966 mustang 289 flex plate????

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum