i sold that truck and got an 04 ecsb that is stock but a tune and flows right now but im also lookin into a l33 with a t56 for a 240
and stevon my 05 silverado 2wd has an lm4 aluminum block and its the stock motor i no they didin come out with the l33 till 05 and they come out with the lm4 in 04 so anything above that prob had an option of each not shur tho
04 1500 5.3L custom hp tuners tune by myself don have a pic of it yet so hear is my old 01 chevy 5.3 460hp 13.669 @ 116
o and thanks blazed i loved the color to thats my favorite hof burnt orange that was my baby but i needed something with a lil more room and it was gettin close to bein maxed out n/a to still be a dd i couldin keep tiers on it
04 1500 5.3L custom hp tuners tune by myself don have a pic of it yet so hear is my old 01 chevy 5.3 460hp 13.669 @ 116
From what I heard when I bought mine, the L33 came in 05-07 Z71s.
also I think the L33s put out around 310hp up from 285 with the lm7
Last edited by low91; 03-24-2009 at 11:51 PM.
1991 Silverado-L33 5.3L, 212/218 .557 .562 115+4, ASP under drive pulley,180* thermostat, 90mm truck intake w/ LS3 throttle body. Shoenfeld conversion headers and duel Flowmaster exhaust. Performabuilt LVL 1 transmission and 23-2500 stall converter.
its 335 at the crank prob 310 at the wheels
nice truck man
04 1500 5.3L custom hp tuners tune by myself don have a pic of it yet so hear is my old 01 chevy 5.3 460hp 13.669 @ 116
oh i know what you mean about keepin tires on it,mine is a good tire layth,and not a problem about your truck,give me your opinon on this how much boost do you think i could make on my truck with a t76 front mount the way my motor is now about 5lbs w/ a snow kit,105octane 7lb w/ snow kit just a ?Originally Posted by ma.racing
i have a 2001 chevy did a 4.8 swap to a 6.0l with mahle pistons 10.5:1,eagle 6.125' h beams,232 238@50.595 598 lift on a 112lsa,243 heads,44lbs motec IIs,tuned by Nick D,it makes 402rwhp,@5000lbs w/ me in it 13.75@101mph on 22' wheels
From what i have read, the iron block came in my 02 Z71, correct? I also read that iron blocks are easier and safer to bore, is this true?
L33 is the high output aluminum block 5.3 with flat top pistons and 799/243 casting heads. It has 310 hp.
The LM4 came in Trailblazers and Envoys and is also an aluminum block 5.3 but is no different than the LM7 iron block other than the blocks being a different material; internally they are the same and rated at the same 285 hp.
Just a 4.8.......
Aluminum blocks bore about .010" oversize a the most.
Cast blocks bore +.030" safely.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
i dono man reall i mean you can run as much as you wont pep on hear are runin 18psi on the stock bottom end
04 1500 5.3L custom hp tuners tune by myself don have a pic of it yet so hear is my old 01 chevy 5.3 460hp 13.669 @ 116
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