1968 Mercury Cougar GT-E 427/390 HP

Paul Ceasrine · 01-02-2013, 03:26 PM

Some general specifications,,,,

* Car Weight #3616 lbs.
* 123 lbs. of added 'Sound Deadener'
* The 427 engine weighed in at a heavy 675 lbs.
* Expensive to build
* Regular 390 GT Exhaust manifolds
* Single-point distributor
* Simulated hood scoops
* Nose-heavy car (Bumper, Hide-Away Light Assembly, Die-Cast Hood)

* Camshaft (Hydraulic) .481/.490 lift - 270*/290* Duration - 46* Overlap

* Rating = 390 HP @ 5600 RPM
* Torque = 460 Foot/Pounds @ 3200 RPM

Performance complaint. The car wouldn't rev near the numbers the factory stated. The valves started to float at 4600 RPM's.

Recommendation (For Street Applications)
* 3.91 Traction-lock gears (at a minimum)
* TRW .515 Lift - 300* Duration (Hydraulic Camshaft)
* Higher-rate valve springs
* Adjustable rocker arms

gt350hr · 01-02-2013, 11:33 PM

Not to mention the 600cfm Holley. The CJ GTE's ran circles around them in a lower class!

Paul Ceasrine · 01-03-2013, 10:15 AM

Ford #C8AF-AD.......Model #4150.....List #4088.....600 CFM

Specific for the 1968 Cougar GT-E 427/390 HP (Automatic Transmission)

Paul Ceasrine · 01-04-2013, 10:24 AM

From the factory,,,,,,

Ran 15.10 @ 93 MPH

But, 'GT Performance' out of Frankfort, Kentucky ran one in C/SA in 1968, and was able to get their car into the 12.70's @ 111 MPH.

I'll see if I can find what they did to the car.

Jack Parris · 01-05-2013, 01:32 PM

Here are some pics of one I saw at a car show in Vancouver, WA back in 2009.

Paul Ceasrine · 01-05-2013, 02:47 PM

The 1968 427/390 HP really got 'trashed' by the critics, as 'too expensive' and a 'non-performer'.

01-02-2013, 03:26 PM	#1
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: 1968 Mercury Cougar GT-E 427/390 HP Some general specifications,,,, * Car Weight #3616 lbs. * 123 lbs. of added 'Sound Deadener' * The 427 engine weighed in at a heavy 675 lbs. * Expensive to build * Regular 390 GT Exhaust manifolds * Single-point distributor * Simulated hood scoops * Nose-heavy car (Bumper, Hide-Away Light Assembly, Die-Cast Hood) * Camshaft (Hydraulic) .481/.490 lift - 270/290 Duration - 46* Overlap * Rating = 390 HP @ 5600 RPM * Torque = 460 Foot/Pounds @ 3200 RPM Performance complaint. The car wouldn't rev near the numbers the factory stated. The valves started to float at 4600 RPM's. Recommendation (For Street Applications) * 3.91 Traction-lock gears (at a minimum) * TRW .515 Lift - 300* Duration (Hydraulic Camshaft) * Higher-rate valve springs * Adjustable rocker arms Last edited by Paul Ceasrine; 01-03-2013 at 10:12 AM.

01-02-2013, 11:33 PM	#2
gt350hr Junior Member Join Date: Jul 2012 Location: California Posts: 5 Likes: 0 Liked 0 Times in 0 Posts	Re: 1968 Mercury Cougar GT-E 427/390 HP Not to mention the 600cfm Holley. The CJ GTE's ran circles around them in a lower class!

01-05-2013, 01:32 PM	#5
Jack Parris Junior Member Join Date: Sep 2005 Location: Walla Walla, WA Posts: 44 Likes: 104 Liked 4 Times in 1 Post	Re: 1968 Mercury Cougar GT-E 427/390 HP Here are some pics of one I saw at a car show in Vancouver, WA back in 2009. Attached Thumbnails

01-05-2013, 02:47 PM	#6
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: 1968 Mercury Cougar GT-E 427/390 HP The 1968 427/390 HP really got 'trashed' by the critics, as 'too expensive' and a 'non-performer'.

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01-03-2013, 10:15 AM	#3
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: 1968 Mercury Cougar GT-E 427/390 HP Ford #C8AF-AD.......Model #4150.....List #4088.....600 CFM Specific for the 1968 Cougar GT-E 427/390 HP (Automatic Transmission)

01-04-2013, 10:24 AM	#4
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: 1968 Mercury Cougar GT-E 427/390 HP From the factory,,,,,, Ran 15.10 @ 93 MPH But, 'GT Performance' out of Frankfort, Kentucky ran one in C/SA in 1968, and was able to get their car into the 12.70's @ 111 MPH. I'll see if I can find what they did to the car. Last edited by Paul Ceasrine; 01-04-2013 at 10:54 AM.