460 questions
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Senior User
Joined: Jan 2005
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From: in the middle of nowhere
460 questions
some of you know of my truck by now. 1980 4X4 dually with a 520 torque 460 motor. do you guys know if a 514 stroker crank would affect smog at all? i already have a problem with smog.
Thread Starter
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Senior User
Joined: Jan 2005
Posts: 137
Likes: 0
From: in the middle of nowhere
in this truck, it originally came with a 400, and the previous owner swapped it with a 460 without taking it to a referee station and getting it checked out. every time i took it to get smogged, they always ask me if its a 400 or a 460. none of them checked it though. it failed smog twice. 1st time it was too rich, 2nd time it was too lean. the metering block is all messed up. i put 4 carbs into 1 and i thought it would work. guess not. Summit wants a new smog legal carb for $280, and i think thats a hella good deal. what do you think?
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
I think an emissions carb is not the way to go. A good Holley 4 barrel 600 cfm carb with a list number of 1850 will adjust better and you will probably need to retard the initial timing a bit. I used to get my 428CJ to pass with ease with a 406 six-pack on top of the engine and the smog pump disconnected (attually it was gutted. They were looky loos about that sort of thing. Of course all they saw was a big air cleaner. You still didn't say where the "middle of nowhere" is that requires emission testing.
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Senior User
Joined: Jan 2005
Posts: 137
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From: in the middle of nowhere
i live in Knightsen, Califorina. a small drinking community with a farming problem. the carb Summit wants is a Holley 600. thats what carb goes on that truck for smog. as soon as i get it to pass smog, my sisters boyfriend is giving me his Edelbrock 750 off his 68` Charger. that 600 is starving my truck, so i think that 750 will be fine
