Which front suspension parts are heavy duty for the 390

If it's mechanical, electrical or just downright confusing, this is the place to find and share answers.
User avatar
skinnedknuckles
Registered Member
Posts: 33
Joined: 16 Oct 2015, 15:05

Which front suspension parts are heavy duty for the 390

#1

Post by skinnedknuckles » 22 Jun 2019, 16:49

I'm putting the 390 from my rusted out Cougar unibody into a solid unibody that had a 289 in it. I noticed that the anti-sway bar used with the 390 is much thicker than that used for the 289. And I suppose the springs are special too for the 390. Does anyone know what other front suspension parts I need to transfer along with my 390 into the unibody that had the 289 in it?
Jonathan Anderson / Software Engineer
'68 S-Code 390 4v 4-Speed Onyx/Dark Red

User avatar
catlover
Registered Member
Posts: 882
Joined: 24 Nov 2011, 08:57
Location: S/W Virginia

Re: Which front suspension parts are heavy duty for the 390

#2

Post by catlover » 22 Jun 2019, 17:21

That's about it, might throw in a heavy duty pair of shocks.
There is never time to do it right, but always time to do it over

67 Cougar restomod
69 Elim. 428 SCJ orange/ white
CCOA 7574

User avatar
skinnedknuckles
Registered Member
Posts: 33
Joined: 16 Oct 2015, 15:05

Re: Which front suspension parts are heavy duty for the 390

#3

Post by skinnedknuckles » 22 Jun 2019, 19:23

Well I'm pretty sure that is incorrect because when you look at shock towers on the WCCC website, they have different ones for the 289 and the 390.
Jonathan Anderson / Software Engineer
'68 S-Code 390 4v 4-Speed Onyx/Dark Red

CATHOUSE
Registered Member
Posts: 1058
Joined: 20 Aug 2013, 08:24
Location: Elizabethtown PA

Re: Which front suspension parts are heavy duty for the 390

#4

Post by CATHOUSE » 22 Jun 2019, 21:19

I am not sure what you are seeing on the WCCC site as I did not see any shock towers that were listed as being small block or big block. About the only difference that I know of is the size of the reinforcing plates. The later production 1968 big block cars had a bit larger plate than the other 1967-1968 Cougars.

Randy Goodling
CCOA #95

User avatar
CougarCJ
Registered Member
Posts: 966
Joined: 16 Jan 2011, 16:00
Location: Salem, Oregon

Re: Which front suspension parts are heavy duty for the 390

#5

Post by CougarCJ » 22 Jun 2019, 21:47

skinnedknuckles wrote:
22 Jun 2019, 19:23
Well I'm pretty sure that is incorrect because when you look at shock towers on the WCCC website, they have different ones for the 289 and the 390.
Not in 1967.
1968 S, X, R, and W code cars received wrap around brackets about April 1968. It is possible that prior to that, the shock towers had additional welds on the brackets.

Additionally, 1968's began the addition of a passenger side torque box.
Last edited by CougarCJ on 25 Jun 2019, 09:17, edited 1 time in total.
Scott Behncke 1968 XR7
Carcheologist - West Coast Classic Cougar


User avatar
bsbeck
Registered Member
Posts: 355
Joined: 08 Aug 2018, 10:40
Location: Alabama

Re: Which front suspension parts are heavy duty for the 390

#6

Post by bsbeck » 23 Jun 2019, 06:25

I think we need Don to comment on this one!
Scott B.

1970 Cougar Eliminator (Competition Blue / Black Comfortweave / 351 Cleveland / Automatic)
Image

User avatar
catlover
Registered Member
Posts: 882
Joined: 24 Nov 2011, 08:57
Location: S/W Virginia

Re: Which front suspension parts are heavy duty for the 390

#7

Post by catlover » 23 Jun 2019, 08:17

My 427 GT-E built in April 1968 , had NO reinforced shock towers.
Just trying to help here, but look at the shock towers that the 390 came out of and compare to the car you want to install the engine in and see if any difference. It would be a good idea to install the shock tower reinforce kit to be safe.
There is never time to do it right, but always time to do it over

67 Cougar restomod
69 Elim. 428 SCJ orange/ white
CCOA 7574

User avatar
Royce
Registered Member
Posts: 1877
Joined: 22 Oct 2011, 07:14
Location: Dallas, TX

Re: Which front suspension parts are heavy duty for the 390

#8

Post by Royce » 23 Jun 2019, 08:47

Scott is correct.
1968 GT-E XR-7 W code 427 Augusta Green / Saddle
1968 XR-7 R code 428CJ Ram Air Red / Black
1910 Model T Ford Touring Red / Black
1914 Model T Touring Maroon / Black
1915 Model T Ford Touring Black / Black
1917 Model T Ford Torpedo Runabout Green / Black
XR7-G Registrar

User avatar
skinnedknuckles
Registered Member
Posts: 33
Joined: 16 Oct 2015, 15:05

Re: Which front suspension parts are heavy duty for the 390

#9

Post by skinnedknuckles » 25 Jun 2019, 06:56

Okay, lets see here, the website says,

The reinforced shock towers came out in late March 1968 and were used on all big block Cougars and Mustangs.

it also says,

The only reason you would pay the extra money for this rare tower is if you were repairing a like car and need an exact match. If you are looking to upgrade a car that did not originally have reinforced towers you would want to purchase our 69 towers that have a larger reinforcement plate and cost much less.

That's almost as good as straight from Don.

So I guess they are not required but would be nice to have. Neither of mine have those so there would be no point in swapping them.

Thanks everyone for the feedback.
Jonathan Anderson / Software Engineer
'68 S-Code 390 4v 4-Speed Onyx/Dark Red

User avatar
bsbeck
Registered Member
Posts: 355
Joined: 08 Aug 2018, 10:40
Location: Alabama

Re: Which front suspension parts are heavy duty for the 390

#10

Post by bsbeck » 25 Jun 2019, 07:09

Skinnedknuckles, though not required, I think the consensus is that while you have the opportunity go ahead and add the shock tower reinforcement before dropping the 390 in there.
Scott B.

1970 Cougar Eliminator (Competition Blue / Black Comfortweave / 351 Cleveland / Automatic)
Image

Post Reply