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Discussion Starter #1
here is my delema.....

I have a 1978 chevy 3/4ton 4x4 8400gvw on pg26 of reader rigs.... I blew the 350 up 4 years ago, so I am in the search of a new motor.....

here is my drivetrain..so you have an idea

motor ==> in question
trans ==> SMC465 4speed with creaper ( great )
t-case ==> NP205 ( all gear really good 0
rears ==> running 4.56's ( stock !!!! )
tires ==> 40x17x16.5 ground hawgs ( BIG TIRES with 15" lift )



Now...
I can get a stock 454 for $1000 fully complete, just drop in

or

chevy 350 4-bolt police interceptor motor
roller cam, roller lifters
serpentine belt ( dont know year of motor off hand )
TPI or TBI ( I dont know which one but not carburated )
smog pump ( sucks but better on emissions )
$600 and I think he has the brain I could get



With NJ laws getting strict, I dont have to take the Dynatel emissions test but I have to take the low idle emissions test.
Is it worth me going with the 350 to get better emissions? or go with the 454 for torque and hope they pass it???

Any help greatly appreciated.
RootBreaker
<p><img src="http://www.pavementsucks.com/readers/jeffr3.jpg></p>
 

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I have an 87 longbed pickup. It has a 305 TBI. I love my fuel injection. But a good friend of mine tells me that there is no replacement for displacement. You can get a 454 with TBI already on it. I think GM produced it in 1 ton trucks starting in 1987.
 

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I have to say go with the 454. THERE IS! NO REPLACEMENT FOR DISPLACEMENT. Especially when you're pushin 40's. As far as emissions goes, I believe (course it varies state to state) that in VA the emissions depends on the year of the engine block, in MD its on the year of the truck. Call around and ask about NJ. IF that doesn't work for you, find some guys who you can tell have illegal trucks runnin around town, and ask where they got their trucks inspected. If you lived in MD or VA I could get you inspected <IMG SRC="/board/images/smilies/icon_smile.gif"> Guaranteed!. Gotta love the 6 pack and $40, no questions asked inspections <IMG SRC="/board/images/smilies/icon_wink.gif">

Later, and good luck.

-Chris
 

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Actually, now that I re-read your post, you are probably exempt, or damn near exempt because of your trucks age. I didn't have cat's on my 1979 when I bought it, so I'm not gonna worry about them <IMG SRC="/board/images/smilies/icon_smile.gif"> I'm pretty sure that Chevy trucks didn't start having cats until 79-80ish. Again tho, check around to see your local laws. In MD 25 years old is historic and you aint' gotta worry about **** <IMG SRC="/board/images/smilies/icon_smile.gif"> I got 3 years to go before my troubles are over. Then comes 502 BB <IMG SRC="/board/images/smilies/icon_smile.gif">

Later,
 

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Discussion Starter #5
Well that is the cool part. I dont need cats, The inspection for modified vehicles told me I could put a ramjet 510 supercharged in ... as long as it passes the low idle emissions test. Also the sticker isnt the problem. You NEED special papers and a BIG TACKY sticker on your windshield that says you passed...etc...
Thanks for the feedback I also saw you sent me a message via AIM. I am always on since it is my work pc but you can reach me during the day on that....
thanks again...
 

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OHH!! LOL now I remember why I messaged u on AIM <IMG SRC="/board/images/smilies/icon_smile.gif"> LOL... sorry I've been preoccupied for the past 3 weeks workin on my truck.

For you not needing Cat's I wouldn't worry about to much. If you get a 502 or other BB put carbs on it, then when it comes time for inspection just lower your miuxture alot, that'll kill the emissions. Also don't go to the inspec. station when its cold, cold engines always puke out more emissions than warm ones.

-Chris
 

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454. The torque will be great for the 40s. With a complete tuneup and a correctly adjusted carb any test should be no problem. The quadrajet carbs have a bad rap but they are excellent carbs. The primarys are extremely small to help mileage and emissions while the secondaries are huge. Problem is too many people blame poor running on junk parts or improper repairs instead of their own lack of maintainance. The FI motors are nice but it may be more trouble than it is worth.
 

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RootBreaker,

My parents own a 92 (or close to) 3/4 ton Suburban with a Talawanda 454 FI motor. It definitely has had it's torque in it's day. It's at about 200k on the clock, and goes through a little oil, but the motor still does well.

If you can get the 454, I think you should go for it. I thought it was good in the burban... but bet it would be more killer with a manual trans.

Just my .02 Good luck

-LT
 

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If I did do the 454 I would probably need the 1 ton suspension in the front and have to weld in some new motor mounts, right? Plus, My rebuilt 700r4 and my open rear end wouldn't handle the horsepower. So, I would probably end up getting a 5 speed
 

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Stay with the small block for the trailriding. If all you did was mudbog then go with the bigblock. The parts are more available and cheaper for the 350 small block.
 
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i just read this and was thinking the same thing, at first i was thinking wtf i though he had a police motor and now was looking to swap

but then i also looked at the date and should have known it was another noob digging deep in the old posts again
 
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