just got a hold of an aluminum block

[pl4yboy]

Not that hard if you are looking at Gen iv

[farmtruc]

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.

[farmtruc]

oh ya, 04 ssr had an aluminum 5.3L also.

[kha4079]

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.

[kha4079]

Not that hard if you are looking at Gen iv

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

[lechez71]

GEN IV 4.8s and 5.3s are all ironblocks.

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.

[farmtruc]

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.

[farmtruc]

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.

ya, i can bench press an aluminum 5.3L about 30times, and the iron block only 22times, much heavier

[CHEVROLADE]

you talking 400 rwhp? or motor

[bangbangskeetskeet]

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.

Pretty sure you they recomend you dont bore an aluminum block more than .010