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83 Canadian build Cougar

Hey guys, im new around here, but I wanted to find out if any of you knew how easy it is to swap the stock 302 Cid 2 barrel for an aftermarket 4 bbl. Ive heard that the engines sometimes have the 4 pack intake but are connected with a type of restrictor plate that reduces the sizing to a 2 bbl, but im not quite sure.

Thanks in advance for the info, i can post pictures of the engine if you want.
1974 Cougar XR7, 351 C, stock. white leather.
1983 Coug' LS-XR7-1/ A/c Delete, Edlebrock Intake, Holley 600 4bbl, Custom Badging, True dual Glasspacks
1989 Pontiac Bonneville SSE, 3.8L bone stock winter beater, in Gold

83 Canadian build Cougar

Reply #1 –
as easy as ordering a 4 barrel intake, carb, and appropriate gaskets...then about an hour's worth of work with basic hand tools and your done...
Currently Birdless but never Foxless

86 Mustang GT

83 Canadian build Cougar

Reply #2 –
welcome

2 barrel isn't a size, it's the number of barrels the carb actually has.. but dougy is right, it's a simple and easy thing to upgrade, anyone can do it.. you just have to pull any sensors/plugs/vacuum trees off your stock intake and find a home for them on your new intake, so you can hook things back up the way they were. then you just need to do (or have someone do) a minor tune on the new carb for it to run correctly

83 Canadian build Cougar

Reply #3 –
i know this thread hasnt had any action in a while, but could i slap a Quadrajet onto one of our engines? with a 4 barrel intake some minor modification of course.
1974 Cougar XR7, 351 C, stock. white leather.
1983 Coug' LS-XR7-1/ A/c Delete, Edlebrock Intake, Holley 600 4bbl, Custom Badging, True dual Glasspacks
1989 Pontiac Bonneville SSE, 3.8L bone stock winter beater, in Gold

83 Canadian build Cougar

Reply #4 –
You don't want a quadrajunk. Im a holley man but if you want a good carb that will give you good MPG and you will not have to tune all the time then get an Edlebrock or Carter. Quadrajunks are for chevys.
88 Cougar LS 5.0 .030 over, ported E7s with GT40 valves & trickflow springs, Proform roller rockers, HO cam, removed air silencer, K&N filter, smog pump delete, 2.25" dual flowmasters, Pacestter H-pipe & headers, HO computer, 65mm TB, Explorer intake, 19# injecters, 3.45s, rebuilt posi, and TCI shift kit.

83 Canadian build Cougar

Reply #5 –
fair enough, but in theory, would one fit? Is a carb a carb, or are the bolt patterns different to the point that i would have no hope getting it to work, and would have better luck going for a holley or edlebrock
1974 Cougar XR7, 351 C, stock. white leather.
1983 Coug' LS-XR7-1/ A/c Delete, Edlebrock Intake, Holley 600 4bbl, Custom Badging, True dual Glasspacks
1989 Pontiac Bonneville SSE, 3.8L bone stock winter beater, in Gold

83 Canadian build Cougar

Reply #6 –
its got an aod as well, so id probably have to modify a kickdown linkeage too eh
1974 Cougar XR7, 351 C, stock. white leather.
1983 Coug' LS-XR7-1/ A/c Delete, Edlebrock Intake, Holley 600 4bbl, Custom Badging, True dual Glasspacks
1989 Pontiac Bonneville SSE, 3.8L bone stock winter beater, in Gold

83 Canadian build Cougar

Reply #7 –
no, a qjet won't fit.. they have a small primary and very large secondary.. you need a special adapter to use 1, it's not worth it.. this is what a qjet intake looks like..



and this is the adapter you're supposed to use.. they're cheap, but the qjet is trash in my opinion

83 Canadian build Cougar

Reply #8 –
oh, and i recommend an edelbrock.. they're easy to tune and change jets/needles if need be

83 Canadian build Cougar

Reply #9 –
okay, so maybe something like this is more appropriate? less in the way of having to get adapters and such
1974 Cougar XR7, 351 C, stock. white leather.
1983 Coug' LS-XR7-1/ A/c Delete, Edlebrock Intake, Holley 600 4bbl, Custom Badging, True dual Glasspacks
1989 Pontiac Bonneville SSE, 3.8L bone stock winter beater, in Gold

83 Canadian build Cougar

Reply #10 –
intake carb swap is easy for most people.
You can do it your self or pay 150 ish to have a shop do it.

83 Canadian build Cougar

Reply #11 –
yeah, im a little too cheap to pay a shop, plus why pay when i can do it at home :)
1974 Cougar XR7, 351 C, stock. white leather.
1983 Coug' LS-XR7-1/ A/c Delete, Edlebrock Intake, Holley 600 4bbl, Custom Badging, True dual Glasspacks
1989 Pontiac Bonneville SSE, 3.8L bone stock winter beater, in Gold

83 Canadian build Cougar

Reply #12 –
Quote from: Coldcougar;346781
okay, so maybe something like this is more appropriate? less in the way of having to get adapters and such



yeah, but you can usually pick 1 up used for about half that.. check craigslist.. i suggest a 600cfm (like that) if you're staying relatively stock and a 650 if you're planning on throwing some other things into the mix like a cam, better intake, etc etc..

83 Canadian build Cougar

Reply #13 –
yeah, thats the idea, let someone else eat the depreciation value. i just sent a guy an email about a Holley over kijiji, so ill see what i can come up with on the previously loved end of the spectrum.
Thanks for the advice guys, ill come back if i have any more questions.:)
1974 Cougar XR7, 351 C, stock. white leather.
1983 Coug' LS-XR7-1/ A/c Delete, Edlebrock Intake, Holley 600 4bbl, Custom Badging, True dual Glasspacks
1989 Pontiac Bonneville SSE, 3.8L bone stock winter beater, in Gold

83 Canadian build Cougar

Reply #14 –
were in canada are you?