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......
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.
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.
you talking 400 rwhp? or motor
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
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
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?