IVA Emission Information. Kit Cars. New cars being built by Individuals, not companies.
Engine block Date- to 31-7-75 = no visible smoke
Engine block Date- 1-8-75 to 31-7-86 =
Visual & <= 4.5 CO & <= 1200 HC @ normal rpm, hot idle. HC can be
tested at 2000rpm if CO passes at idle.
Engine block Date- 1-8-86 to 31-7-95 =
Visual & <= 3.5 CO & <= 1200 HC @ normal hot idle. HC can be tested
at 2000rpm if CO passes at idle.
Engine block date- 1-8-95 on =
With oil temp at 60 degrees C,
Visual & @ fast idle [2500-3000rpm <= .3% CO & <= 200 HC, Lambda .97 to 1.03
At idle [450-1500rpm], CO should be <= .5%. Catalytic converter/s and fuel injection is mandatory.
Engine block codes
The Ford casting number always starts with the 'Decade' character. Ford started using this structure in the late 50's with the first letter being 'B' . In the 60's the letter changed to 'C' and 'D' for the 70's and so on. The Decade digit is always followed by the 'Year' number. The combination of Decade and Year indicate the actual model year the part was originally designed for.
First character (a letter)
B = 50's C = 60's D = 70's E = 80's
Second character (a number)
Year of decade
e.g. C9 is 1969
Third character
Car model
E,g.
A – full size Ford
D – Falcon, Maverick
E – Truck
L – Lincoln
M – Mercury
O – Fairlane, Torino
S – Thunderbird
Z – Mustang
W - Cougar
Fourth character
Engineered component
E = engine
The second group of characters refers to the part of the car. In this case the engine.
Cheers
Mike