The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Which of the '73-'80 Chevy's had catylitic converters and which didn't?

Grim Reaper · 05-05-2003, 10:42 AM

My understanding is that on TRUCKS that 78 was first year for cats in the states Except Cali. I think Cali got them in 75.
On the core suport or the Air cleaner (it was on the air cleaner on my 75 Jimmy) there will be a sticker and if it had Cats it should say CATALIST accross the top and have the Gap and timing info on it as well. That sticker ended up on the core suport from I think 76 up.

05-05-2003, 10:42 AM	#29
Grim Reaper Registered User Join Date: Jul 2001 Location: Atlanta GA Posts: 1,704	My understanding is that on TRUCKS that 78 was first year for cats in the states Except Cali. I think Cali got them in 75. On the core suport or the Air cleaner (it was on the air cleaner on my 75 Jimmy) there will be a sticker and if it had Cats it should say CATALIST accross the top and have the Gap and timing info on it as well. That sticker ended up on the core suport from I think 76 up. __________________ Grim-Reaper 70 Pontiac LeMans Sport Convertible, worlds longest resto in progress Looking for 71-72 2wd Blazer or Jimmy Project