I wouldn't even consider a 454 unless you just have a free one laying around. If you want a torque monster big block and still be about to get double digits in fuel mileage I'd look into the fuel injected 555 that Pat Musi and Edelbrock offer. Its going to be pricey but if you really use and work your truck you're going to save the extra money it cost at the pump. They installed this engine in a 66 Chevelle and pulled down 28 MPG on the highway, the engine is incredible.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Edelbrock.com - Crate Engines - Big-Block Chevy - Edelbrock/MUSI 555 RPM XT EFI 10.0:1 - (697 HP & 643 TQ)Originally Posted by RedHeartbeat
Any year stock Duramax blows a Vortec 454 out of the water and part of it is the 5 or 6 speed auto but the rest is the power. The 8100 doesn't even compare to the 2001 DMax and it's got 40 more cubes than the 454. Just wait 'til you need a set of injectors on that overheating 600 pound low power behemoth. At some point it will set rich codes and have extended crank due to injectors leaking down into the intake. They're not as much as DMax injectors but they're about $80 each cheapest. The Vortec 454's are extinct for a reason....for almost 10 years.
You might not need more than 4000 pounds to make the comparison but that's about the point a 6.0 starts getting out accelerated all the while still getting better MPG loaded. 6.0's get bad mileage but the 11 you get with one in front of 6000 pounds is a lot better than the 9 you get from a 454 pulling 4000.
That is certainly not a handicapped reTarded stock Vortec 454...
I am not gonna argue with you but you are very,very wrong.
Why dont u look and see what each of them is rated at before you go telling storys.....
Thanks for the info, I appreciate it.Thanks,
You will need motor mount plates to adapt everything. The stock v8 mounts work tho. Yes nelson makes a great harness. Just a word of advice, if you have a 4L60E or 65E and you want to go 6.0 please get the 4L80e Transmission. Those trannys are not meant to hold against any power other then stock. Just changing to a k&n air filter puts you at risk of breaking itYou could get a flt lvl 9999 and it wont hold up. As for time. It really can't be done in a weekend. There is a lot of time involved with wiring and fitting everything in.
I have to do some searching, found a few places with both 5.3s and 6ltrs.
If thats the case about the tranny, I may just stick with a 5.3.
Figured it would take some time. I have to start doing my homework.
RedHeartBeat,
I saw that on TV. That is exactly what I would do if I had the coin. Sweet set-up.
You're talking about something that they quit making almost 10 years ago and even its way better replacement was outsold 50 or 100 or 200 to one by the Duramax and least that much or most likely more by the 6.0.
You are going backwards to spend the time putting and overweight under performing Vortec 454 in almost anything.
But then again...by all means....have at it.
They quit making LS1 Camaro's,Trans Am's,Grand Nationals,cars with big blocks,and slapped the MCSS and Impala SS badge on pos fwd car's.GM isnt know for doing the smartest things...
Apparently you have never owned a 454 Vortec truck or you wouldnt be talking smack about them.So what if it needs injectors?Just like every other car/truck GM makes,the inj were to small so they need upgraded and they take the same inj's as most 84-2004 cars...Its not the pos spider intake,its a true multi point sequintial fuel injection.
You are right about the 10 year old thing though,then again some of the trucks people are putting the new engines in are even older.My truck was ordered in late 99 as a 2000 model.Its a 2wd single rear wheel long wheel base 3500 with the 454/4l80e,hd cooling/charging and its the old body style(88-98)
Only reason I have kept the gas hog is its TOWING and relibility.And I also own a 495/1050(w/o nos) 99 single rear wheel ext cab Dodge Ram 2500 with the Cummins/nv4500 so its not like its the only thing I have to tow with.....
Ive seen the big blocks for a good bit cheaper than a complete 6.0.Now maximum hp,still retain great gas mileage, and a all around faster better handling vehicle,go with the LS based motor
Camaros and Trans Ams went out of production because the car itself was a POS, they cost way too much, and anyone that wanted one could not afford the payment much less the insurance. That has nothing to do with the engine.
A FWD new Impala SS stock with put a crappy LT1 94-96 Impala (stock vs. stock) in the weeds, no question.
So what if they ALL need injectors? It's not the flow rate, it's because they LEAK...causing rich codes and extended crank. They're about $1000 per set or more and that doesn't include labor or plenum gaskets to replace them. The injectors are not like any other car or truck. Only the LB7 DMax has a higher injector fail rate. There are 98890760 times more "spider" systems that still work vs. the 90% fail rate of the Vortec 454 injectors. It's pretty much only the 91-94 spider set up that have problems and they're V6's.
There is a reason the newer BBC's cost less. They're for vintage and strip only cars.
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