a rare breed its a 5.3 aluminum block :D stock 3.78 bore got it for a great price it came with stock pistons and rods no crank no heads im going to be aiming for 400+rwhp ill post pics up soon :)
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a rare breed its a 5.3 aluminum block :D stock 3.78 bore got it for a great price it came with stock pistons and rods no crank no heads im going to be aiming for 400+rwhp ill post pics up soon :)
Its gonna take a decent sized cam and at least some type of head work to come close to 400rwhp....not impossible, but my ls6 heads 232 cam 6.0L hit 403 rwhp with a ls6 manifold......
nothing a little cash cant take care of i already have a set of 243s ill be doing the portwork myself, a custom grind cam, fast 92/92 setup that should get me there if not close to it :DQuote:
Originally Posted by ls1ram
and theres some cammed ls6s well over 400 themselvesQuote:
Originally Posted by ls1ram
hey quik how does a tsp 233 239 sound for the 5.3? :DQuote:
Originally Posted by Quik
Bahahahaa it'll scream?Quote:
Originally Posted by kha4079
spec wise you idiot. doosh.Quote:
Originally Posted by kerrige
Thats the cam ove looked at for my truck... Fastrt on pt.net hit 377 on 5.3 worked heads and 226/230 598/600 112+4 eps cam... Other lil stuff... Tbat was on mild tune
whats so rare about the aluminum 5.3L? didnt alot of gen 4 trucks come with that motor? just asking because i have a alum 5.3L in my 82 c10 and would be cool to know i have a rare motor. its stock but runs strong has 10:1 comp ratio 799 heads 30# injectors 87mm tb, its rated at 315hp and 338ft-lbs of torque. im very interested on how your build goes so keep us updated.
those blocks are hard to come by
Not that hard if you are looking at Gen iv
they came in some of the 4wd extcab 05-07 classic trucks. it's the L33, B vin. which btw, gm doesn't give out any darn help when trying to flash one of those vins to a new pcm.
call and they say it's a bad vin, hahah, vci number, forget it!!! ok, just my little rant about them.
they came in a lot of the 07+ trucks.
oh ya, 04 ssr had an aluminum 5.3L also.
yeah youre right its off an 04 ssr it was in a hurricane and submerged in about 15 ft of water lol one of the sleeves has pitting but nothing a .030 bore cant fix :) now i have to find out what the max bore on these engines are.Quote:
Originally Posted by farmtruc
GEN IV 4.8s and 5.3s are all ironblocks. have you tried lifting a bare 5.3 ironblock? i can barely drag it lol but try lifting an aluminum block and i can lift it with ease :DQuote:
Originally Posted by pl4yboy
not true i have a 07 aluminum 5.3L Gen IV. it feels lighter than the iron 5.3L thats for sure was easy moving it on the engine stand.Quote:
Originally Posted by kha4079
ya, lots of 5.3L blocks are aluminum now, almost every one of them we tear into and are 07+ are aluminum.
haven't really paid attention to see if the 4.8L is alumin, think it's still iron, not sure though.
ya, i can bench press an aluminum 5.3L about 30times, and the iron block only 22times, much heavier :)Quote:
Originally Posted by lechez71
you talking 400 rwhp? or motor
Pretty sure you they recomend you dont bore an aluminum block more than .010Quote:
Originally Posted by kha4079
Also aluminum 5.3 blocks came in trailblazers
Aluminum block needs sleeved to gain any bore size.
screw it ima go .030 over if i crack a sleeve then ill resleeve with Darton MID sleeves and have a secred cubed engine on a 5.3 cast engine :D
ERL has been resleeving all gen 4 blocks for years now. which can be a variety of cube sizes
Plus they aren't having the same old problems with dropped sleeves like the used to have. Seems to be a legit alternative for more cubes than going with an iron block these days
weight is the main reason why i got this block but as far as big cubes its cheaper to make an ironblock big cubes. i can get 6.0 cores for 3-500 bucks.Quote:
Originally Posted by Mang213
Of course iron blocks are cheaper, but that wasn't my point. 7-8 years ago, getting an aluminum block sleeved was a shot in the dark for reliability, with bad coolant leaks from the dropped sleeves. Now, with the new sleeving processes that are utilized, a large cube aluminum LS is an option. Big cubes, light weight= win win
And probably still cheaper than an LS7 or C5R block
If weight is all you were worried about you didnt get much difference. 60lbs I think.Quote:
Originally Posted by kha4079
actually there are a good bit differences in weight. alum 6.0 to iron 6.0 is around 90lbs, other blocks like the iron 4.8.5.3 have slightly more weight then the 6 litre blocks, of course the lsx is another 35lbs heavier then the standard production blocksQuote:
Originally Posted by SLO TRUCK
youre right quik the iron 4.8/5.3 blocks weigh in 110 lbs heavier than aluminum 5.3 blocks :)
how much compression do you plan to run on this 5.3 setup, that's shooting for 400RWHP?
Video or ban.Quote:
Originally Posted by farmtruc
I'm curious to see this. 400 ponies out of my engine is do able but I'm just looking to see what set up you use.
im thinking about running 11.2-11.8 c.r And aiming for 400 RWHP :)Quote:
Originally Posted by gm327