Author Topic: 68 390 GT Correct Pulleys & Belts  (Read 1034 times)

Offline duffman

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68 390 GT Correct Pulleys & Belts
« on: May 17, 2021, 04:19:25 PM »
I would like to make sure I have everything correct before investing.
Early 68 GT 390 with PS & Smog.  Has the dual pulley alternator.
The current Water pump and crank pulleys are incorrect.

From search here and elsewhere, I would need
C8AE-6312 - D /E
C8AE-8509 -C

Not clear on the belts/configuration.
Before posting a Want to Purchase , I would like to get it right!


Born on 12/14/17 San Jose 68 S Code convertible 4speed, deluxe interior & seatbelts, 8 track in console, 3:25 Conv rear, GT package, PS, PDB,PT, Convenience Panel, Visibility, Reflective & Blackout packages

Offline RoyceP

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Re: 68 390 GT Correct Pulleys & Belts
« Reply #1 on: May 17, 2021, 05:24:50 PM »
1968 model year 390GT and 428CJ share pulleys for given configurations. You need to specify whether your car is equipped with power steering, and air conditioning. Smog was a 50 state item in 1968 so every 390GT has that.


Scott and Chris have amassed a lot of good information here:


https://www.428cobrajet.org/id-pulley
1968 W code 427 Cougar XR-7 GTE Feb 23 Dearborn C6 / 3.50 open
1968 R code 428CJ Cougar XR-7 May 13 Dearborn C6 / 3.91 T - Lock

Offline duffman

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Re: 68 390 GT Correct Pulleys & Belts
« Reply #2 on: May 18, 2021, 01:48:57 PM »
Power Steering, no Air., and thanks
Born on 12/14/17 San Jose 68 S Code convertible 4speed, deluxe interior & seatbelts, 8 track in console, 3:25 Conv rear, GT package, PS, PDB,PT, Convenience Panel, Visibility, Reflective & Blackout packages

Offline WT8095

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  • Dave Z.
Re: 68 390 GT Correct Pulleys & Belts
« Reply #3 on: July 20, 2021, 11:51:07 PM »
From my 1968 engine manual.
Dave Z.

'68 fastback, S-code + C6. Special Paint (Rainbow promotion), DSO 710784. Actual build date 2/7/1968, San Jose.
'69 Cougar convertible, 351W-2V + FMX, Meadowlark Yellow.