1slowz71

iTrader: (6)

rev it *****r if it blows we will drop an lq4 in it! and some juice pa que sepan lo que es bueno!

00ChevyScott

iTrader: (10)

Aluminum will flex more with heat, but I don't see RPM being much of an issue considering the rotating assembly is balanced.

Rhino79

iTrader: (7)

How many LS1 blocks you see breaking from spinng up past 6500? The 5.3 is probably a lil stronger due to the smaller bore. You'll be fine, Put a t-rex in it and shift when the engine stops pulling...

05gmcsierra

iTrader: (3)

engine came with truck when i got it 05 so im sure its balanced and all that good stuff... and like 1slowz71 said lets rev this dam thing... im wanting an lq4 anyways so that will be a good excuse to upgrade... but gotta say one thing.. this dam engine rocks!!!!... on 10.7 compression with that baby 217/223 on a 549/549 113lsa and 6.0 H/C having a hard time.. no names (1slowZ71).. hahahaha

1slowz71

iTrader: (6)

not having a hard time when i pulled i pulled buddy ! you cant touch this!

BlackGMC

iTrader: (31)

You have a 10.7:1 5.3? What did you do to achieve that CR?

05gmcsierra

iTrader: (3)

well the L33 engine came with flat top pistons and 799 heads so i milled my heads to around 59-60ccs.. i was thinking compression around 10.4-10.5 but when we put the info on a compression calculator it said 10.7.. so im assuming thats what it is.. might be wrong tho.. correct me if soo..

00ChevyScott

iTrader: (10)

From a quick search, the L33 is 9.9:1

05gmcsierra

iTrader: (3)

yes it us.. and the heads milled 35thousand would put me at what compression?.. i was told i was at 59.44cc chambers.. and when i input that info into a compression calculator it said 10.7.. but i was thiking more like 10.4-10.5... since i went 5cc less i would go 5 points up making it 10.4 but idk.... i was just saying what the calculator told me when i pluged in the numbers..

mobinlow&cln

iTrader: (1)

i used to shift my 5.3 at 6600 for a long time and had no problems...just recently lowered it to 6200