What is E.E.C. ?

[AMANOCC]

This carb baffle came with a intake I bought recently...parts book say "All 1970 E.E.C. with Spec H/Perf 396/454". Not up on the 1970 stuff, can anybody shed the light?
http://images.andale.com/f2/115/106/...IMG_3623-1.jpg

[L89DRMR]

Evaporative Emissions Control

Dave

[NCGuy68]

[ QUOTE ]
Evaporative Emissions Control

Dave

[/ QUOTE ]

Dave is correct, but that looks like a after-market heat shield commonly used in the 70's. Is there a OEM GM part nuber on it?

[AMANOCC]

Is the EEC on all the cars or is it a California thing? That is a GM part.
http://images.andale.com/f2/115/106/...7/IMG_3620.jpg
http://images.andale.com/f2/115/106/...7/IMG_3619.jpg

[Mr70]

In short,it was originally a California only emission mandated by the Federal Government beginning with the 1970 model year,whenever a vehicle was sold BRAND new in the state of California and certain southern most areas of Nevada too.For All passenger cars & Trucks having a gross vehicle weight of 6000 lbs. or less.
If they were assembled in the state Calif,and shipped to another state,they did not have to have E.E.C.
If they were built out of state,and shipped to be sold brand new in the state of Calif.they had to have E.E.C. added on before titled.
It was designed to minimize fuel vapors that normally escape into the atmosphere from the carbs fuel bowl & fuel tank.
Not to be confused with A.I.R.aka-SMOG,or even T.C.S.,....E.E.C.was known as RPO NA-9,which consisted of many intregal parts.The most obvious being a carburetor insulated heatshield,special modified carburetor,pressure vacuum gas cap and a Charcoal filter cannister to capture unspent fuel vapors and recirculate them back into the gas tank via a rear mounted liquid vapor seperator block.The charcoal cannister,similar in size to a Coffee can,is mounted behind the drivers side headlights on a special bracket bolted to the radiator support,with 3 purge hoses running into it.
It became standard equipment on all vehicles sold in all states in the years following 1970.
That is the correct heatshield part number for the vehicles you listed.

[COPO 70 RS/Z28]

So one of those plates be standard on a 70 camaro from Van Nuys??

Thanks

Carl

[Mr70]

Yes,as it would have the entire E.E.C. system on it,but only if that same Camaro was destined for a dealership in the state of California,and southern most Nevada.
If it was going to be shipped to a dealership and sold brand new in say Colorado,then no.

[wundercluck]

As stated in the original post, that plate is for Holley equipped Big Block cars only. The Z28's used a different plate- #3972156. It has a 45 degree angle on the R side about 2" long.

[TDW]

[ QUOTE ]
As stated in the original post, that plate is for Holley equipped Big Block cars only. The Z28's used a different plate- #3972156. It has a 45 degree angle on the R side about 2" long.

[/ QUOTE ]

Do you have a picture of the 2156? A guy on the sec gen site is looking for a picture.

[COPO 70 RS/Z28]

I would be interested in a picture also if anyone has one!!

Thanks