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Hello,
I'm new here and I already check in and said hello. Anyway, I had this engine that someone gave me and I was wondering is it a 5.3 or 4.8 because on the block it says both. I heard that the piston could tell you what it is so here is a pics of the pistons.
Thanks for the help in advance.
http://image75.webshots.com/175/8/85...3BjXjHY_ph.jpg
Can't view your pic, but if it's dished it should be 5.3, and if it's flat top then should be 4.8....
There's the odd chance that it's an HO 5.3, it will have flat tops, but the block is also alumnium so thats kind of a giveaway
Sorry here is the picQuote:
Originally Posted by 2001si3rr@
http://carphotos.cardomain.com/ride_...0097_large.jpg
5.3
Yup, its a 5.3L. Lucky you - the 5.3L has a WAY better torque band than the 4.8L. CHARGE IT !!!
I need friends that give away engines.
Well I'm into classic cars and trucks and I done some metal fab for someone and he could not pay me and he told me I could have the motor for my project if I wanted it. I building a 55 chevy truck and it may go in that I doing some research if I want to use the motor our not. He gave me the motor and trans and harness. The truck will be low and mean looking so I was going to build a 383 stroker with a thumper cam for it. Its got to sound mean so I need to research cams and things like that for the ls engine. I'm leaning towards a 383 stroker because I know and understand that engine, but I have to see whats up the the LS series. I have the 350 block I'm using for the 383 and now I have this 5.3 so I guess I'm going to tell the guy ok and let him off the hook for the money.Quote:
Originally Posted by PitchBlackC3
You can use the flat tops from a 4.8L to bump up the compression ratio a bit.
This is the place to learn about LS engines in a truck for sure.
budget 383 SBC dont produce the stock power level of some of the GEN III and GEN IV motors produce
the 5.3 can be made into a 382 if needed.
thats an older 5.3 isnt it? pre 02?
It is drive by wire so I don't think it's pre 02.Quote:
Originally Posted by Quik
they had DBW before 03Quote:
Originally Posted by jomo
I read on ls1tech that they did not go to DBW on the 5.3 until 2003. I don't know I'm just trying to learn. Another question how can I find out what year the engine is?Quote:
Originally Posted by Quik
+1 I was always under the impression that DBW didn't start on the trucks till 03.Quote:
Originally Posted by jomo
Simple way is the vin.
Traction control trucks had DBW, also some tahoe/subs' had DBW
look up for example SPoolin on PT.net and his Kermit. his i believe is a 01 that had traction control with DBW
Looks like you know your stuff. I just looked up the PCM and its for a 2001-2002. The number on the PCM is 12200411. The guy I got the engine from told me it was out of a Tahoe but he is not sure of the year. Well the PCM at least narrows it down to either 2001 or 2002Quote:
Originally Posted by Quik
there ya go. now i do believe in 02 they started to use MLS gaskets from factory. i think 01 still had graphiteQuote:
Originally Posted by jomo
Well I'm going take you guys advice and use it in my 55 Chevy Truck. I just purchased some books to learn about these engines, so I will be doing a lot of reading. I don't like nothing stock so I will be checking out how I can put some attitude in this little engine.Quote:
Originally Posted by Quik
whats needed to make a 5.3 a 382? Or for that matter, what can a LS1 be stroked to? I just happen to have a 5.3 and a LS1 (LS1 has a bad bearing it seems) just sitting around. :thanks:Quote:
Originally Posted by Quik
Yeah I would like to know also.Quote:
Originally Posted by SpecV44
10 over your ls1 and use a 4" crank with correct pistons
4.8/5.3 is same setup. take to 3.9 bore and use 4" crank
I can pretty much fab anything so I'm not worried bout Anything, I'm just at a learning curve on the new tech stuff.lol My brain needs an upload with this LS stuff. I also have a 55 Chevy Sedan that has a 454 thats fuel injected, but I always wanted an LS1 in that baby. So I will cut my teeth on the 5.3 and maybe the Sedan will get that LS1 after all. I love the way that engine looks.Quote:
Originally Posted by Quik
Also does any GM drive by wire pedal work or do I have to look for a certain year? Thats the only think I did not get with the engine
not on the trucks the pcm changed in 03 and that was the beggining of the ETB trucksQuote:
Originally Posted by Quik
Well the throttle body is drive by wire and the pcm is 12200411 and upon a search they said its 2001-2002. Lets just call it a 2002 engine. It does not matter its going in a 50 plus year old truck.lolQuote:
Originally Posted by MidnightRider
he asked if they had DBW on the 5.3s before 03 and i replied back with they did in fact with the tahoes and burbans.Quote:
Originally Posted by MidnightRider
in the 411 pcms there is still provisions in the tune for ETC
Wrong...Quote:
Originally Posted by MidnightRider
Quik is right about this. DBW was on the Tahoes and Burbs with traction control. My 2001 C3 has it too, but it is a 6.0L.
To the OP, if you want to go with a cable throttle body, I am looking for one of the 00-02 DBW throttle bodies.
To stay with the DBW, you will need to have the TAC module from a pre-03 truck too. The 03-up one will not interchange.
Yeah I have it I just need the pedal. I'm going to start looking for one.Quote:
Originally Posted by PitchBlackC3
01 with the 385HP Z06 corvetteQuote:
Originally Posted by Quik
LS vettes are DBWQuote:
Originally Posted by clementeunknown
Well got the engine mocked up
That's SWEET. I like the IFS too.
BTW, if you haven't found a pedal yet you should know that you can use any pedal from 00-05 with your 02 TAC.
Thanks man,
I lucked up and found pedal on ebay so I will be running the DBW.