LM7 = iron block 5.3 LM4/L33 = aluminum block 5.3
am i right
and what years wear the lm4/l33 in the trucks i am looking at doin a ls swap into a 240 and i wont to go aluminum but ls1s are hard to find around me just layin around in wrecked cars
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LM7 = iron block 5.3 LM4/L33 = aluminum block 5.3
am i right
and what years wear the lm4/l33 in the trucks i am looking at doin a ls swap into a 240 and i wont to go aluminum but ls1s are hard to find around me just layin around in wrecked cars
alot of views but no help come on guys bump
I think your right this dude i know owns tri-star towing and he asked me if they make a aluminum 5.3 and i told i dont think so.i went to see and it is a aluminum 5.3 out of a 2005 trailblazer, also i was reading your sig what did you have done to the 01 gmc to make what you didQuote:
Originally Posted by ma.racing
ls6 heads shaved .005 and 560 lift voodo cam malory coils ls6 intake fuel rail 45 lbs injectors pvc vented ported 90mm tb tb bypass egr delete lt headers off rd y pipe flows with turn downs lunady ls1 roler set e fans flat tops for alil more compression 4l80e built by kings trans 3000 yank converter hd drive shaft and 3.73 true track strange axels and the stock housing shortin 3 in with 3 in wheel spacers with the 20s on a 4 link and a tune from rwtd dyno tunes from mobile i prob left some stuf out but its close enuf big thing is heads cam roler setup and pistons
got some more info the lm7 is iron block iron heads lm4 aluminum block l33 aluminum block with ls6 heads and flat top pistons with a high lift cam i think its a 490 lift nice i think i wont to put the l33 in my 240 at 335hp at the crank stock
You are correct. Not sure on the years they put the L33 in and what models got them... Like he said, I know the trailblazers got them and I think the 5.3 Vmax's did also..
you say cam roler solid or is that hyd.also standered bore,dont know what this is (headers off rd) i need a set of e fans,what was your compression,and your pvc was vented,i have mine hooked to a pan evac on my exhuast i hope im brothering you with my ? just wondering why would you reather go with that l33 instead of a ls1Quote:
Originally Posted by ma.racing
its an off rd y pipe and it was a roller cam and i think it was around 9:10 not shur tho and and as for why go l33 well its not much lighter but just kinda and its way way cheaper and ezer to find and your not bothering me bro thats y im on this form to answer and ask ?S
well i a appreciate that,cool your truck looks good i like that color on it,what motor you doing now for your truckQuote:
Originally Posted by ma.racing
the 5.3L LM7 is an iron block w/ aluminum heads. The motorset I picked for my nitrous 240 application.
The L33 came in certain
* 2005-2007 Chevrolet Silverado 1500 4WD
* 2005-2007 GMC Sierra 1500 4WD
the LM4 in
* 2004 Chevrolet TrailBlazer EXT
* 2004 GMC Envoy XL
* 2004 Chevrolet SSR