| Part |
Cobra Jet |
Super Cobra Jet |
Additional Notes |
| Optional and Mandatory Parts |
| Location of Horns |
One on left & one on the right |
Two horns on the right side |
The engine oil cooler was placed on the left side
resulting in both horns being placed on the right side |
| Air Conditioning |
Optional |
Not offered |
|
| Axles |
31 spline gear |
31 spline gear |
Also offered on the Boss 302 and Boss 429 Mustangs |
| Traction Lok Axle |
Optional |
Standard feature when car was ordered with 3.91 axle |
|
| Detroit Locker Rear |
Not offered |
Standard feature when
car was ordered with a
4.30 axle |
|
| Engine Oil Cooler |
Not offered |
Mandatory Option |
Found on the left side at the horn location resulting in
both horns being placed on the right side. |
| Ram Air |
Optional |
Optional |
Ram air was an option on either
Cobra Jet and Super Cobra Jet motor |
| Staggered Rear Shocks |
only on the 4 speed cars |
only on the 4 speed cars |
|
| Automatic Transmission |
Optional |
Optional |
The Ford C6 automatic Transmission was available with
either motor. |
| Extra Shock Tower Bracing |
Mandatory Option |
Mandatory Option |
Also offered on Boss 302 and
390 GT Mustangs |
|
Parts Unique to the Cobra Jet Mustangs |
| Part |
Unique to the Cobra Jet? |
Unique to the Super Cobra Jet? |
Additional Notes |
| Pistons |
Yes |
Yes |
The Cobra Jet Pistons were Cast. The Super Cobra Jet's
were forged. |
| Crankshaft |
Yes |
Yes |
|
| Connecting Rods |
Yes |
Yes |
The Cobra Jet had 428 connecting rods upgraded with
13/32" rod bolts. The Super Cobra Jet connecting rods were 427 LeMans
rods with a cap screw bolts. |
| Fly Wheel & Flex plate |
Yes |
Yes |
The balances were different |
| Balancer & Damper |
Yes |
Yes |
The balances were different |
| Crankshaft Spacer |
Yes |
Yes |
The Cobra Jet used the 390 Spacer. The Super Cobra Jet
used a special unique spacer |
| Cylinder Heads |
No |
No |
Both engines used the same cylinder
heads |
| Engine Block |
No |
No |
Both engines used the same engine block |
| Engine Oil Pan |
No |
No |
Both engines used the same oil pan |
| Distributor |
No |
No |
Both engines used the same single point distributor. A dual point
distributor was not a Ford factory installed
part. |
| Intake Manifold |
No |
No |
Both engines used the same cast iron intake manifold |
| Distributor |
No |
No |
|
| Hydraulic Camshaft |
No |
No |
Both engines used the same hydraulic camshaft |
| Automatic Transmission (C6) |
No |
No |
Both featured a cast iron tailshaft on the Ford C6 |
| Manual Transmission |
No |
No |
Both featured a mandatory big input shaft and close
ratios gears |
| Carburetor |
No |
No |
Both engines used the same Holley 735
CFM carb |
| Exhaust Manifold |
No |
No |
Both engines used the same cast iron header type exhaust manifolds |
|
Casting or Tag Numbers |
| Pistons |
|
|
|
| Crankshaft |
Ford part number 1UB or A |
Ford part number 1UA or B (requires a unique balancer cast C9ZE-6A300-A |
The Cobra Jet crank shaft is also found in
the 428-4V motor, the 428 Police Interceptor and Mercury 410 engines |
| Connecting Rods |
Ford part number C6AE-C, C6AE-F or
C7AE-B |
Ford part number C6AE-E or C9ZE-A |
The Cobra Jet had 428 connecting rods upgraded with 13/32" rod
bolts. The Super Cobra Jet connecting rods
were 427 LeMans rods with a cap screw bolts |
| Fly Wheel |
Ford part number C8OE-A |
Ford part number C9ZE-A |
|
| Flex Plate |
Ford part number C6VP-B or C7AP-A |
Ford part number
C9OP-B |
|
| Balancer & Damper |
Ford part number C8AE-6316-A (7"
diameter) |
Ford part number C8AE-6316-C (7.5" diameter) |
|
| Crankshaft Spacer |
|
|
| Cylinder Heads |
Ford part number C8OE-6090-N |
16 exhaust manifold bolts per cylinder head |
| Engine Block |
|
|
|
| Engine Oil Pan |
|
|
|
| Intake Manifold |
Ford part number C8OE-9425-C |
Often the 428 Police intake in was used in place of the
cast iron CJ/SCJ intake since the Police
Interceptor used an aluminum intake. |
Distributor
C6 Automatic Transmission |
Ford part number
C8OF-12127-J (68-69)
DOZF-12127-G (1970) |
The Ford C6 Automatic with a cast iron tailshaft |
Distributor
4 Speed Transmission |
Ford part number
C8OF-12127-H (68-69)
DOZF-12127-C (1970) |
All cars had Ford's close ratio 4 Speed |
| Hydraulic Camshaft |
Ford part number
C6OZ-6250-B |
There is a blue paint mark in front of 3rd cam journal |
| Automatic Transmission (C6) |
Tag# PGB-AF1 or
PGB-AF2 |
|
| Torque converter |
53 |
12" 1,830-2,030 stall |
| Manual Transmission |
Tag# RUG-AE2 or
RUG-AZ, RUG-AZ1 |
Located on the transmission case |
| Bellhousing |
Ford part numbers
Before 2-15-68 C6OA-B or C6OA-D
After 2-15-68 C8OA-6394-D |
|
| Cluth fork |
Ford part number
C8OE-7541-D |
|
| Carburetor |
Ford part numbers
C9AF-N for auto transmission
Ford part number
C9AF-M for manual transmission |
Holley 735 CFM |
Carburetor spacer
plate |
Ford part number
C8OE-9A589-D |
|
| Fuel pump |
4441 X |
Carter Model |
| Exhaust Manifold Left Side |
Ford part numbers
Before 9-2-68
C8OE-9431-A or H.
After 9-2-68
C8OE-9431-B |
|
| Exhaust Manifold Right Side |
Ford part numbers
Before 9-2-68
C8OE-9430-A or B.
After 9-2-68
C8OE-9430-D |
|
