| 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 |
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| 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 |
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Parts Unique to the Cobra Jet Mustangs |
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| 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 |
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Casting or Tag Numbers |
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| 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 |
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| 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 |
There is a blue paint mark in front of 3rd cam journal | |
| Automatic Transmission (C6) |
Tag# PGB-AF1 or |
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| 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 |
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| Cluth fork |
Ford part number |
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| Carburetor |
Ford part numbers |
Holley 735 CFM | |
| Carburetor spacer plate |
Ford part number |
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| 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 |
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| Exhaust Manifold Right Side | Ford part numbers Before 9-2-68 C8OE-9430-A or B. After 9-2-68 C8OE-9430-D |
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