How much power can these alum 5.3 blocks handle on the nnbs?

[Frenchy]

Garrison's (LamboDoNoMoHomoRopeSucker) putting likely 550+ to an aluminum 5.3

[RUFFNECK]

I've heard 500 is the threshold for the bottom end.

[pl4yboy]

Then how did George push nearly 800 rwhp to his 4.8 for years?

[kyhunter89]

He says its because of a perfect tune

[pl4yboy]

Either way, he did it and it's a stock block 4.8... Although, it wasn't aluminum.

[George C]

the number 7 shit is bullshit. a motor fails cause it was mistreated or improperly handled. a 5.3 should easily make 800 rwhp without a hiccup if in the right hands and given proper support. Like cool IATs, cool ECT, good tune, smart driver, good tune.

also to get 500 hp i wouldnt consider 2 power adders for such a low hp level goal. 500 is roughly 9-11 psi. two power adders is just an excuse for the lack of another. Plus its more complications especially for such a goal as of 500.

i think ducky has been unhurt for several years at 500ish with his 5.3, trevor1 has well over 600 on a 5.3 for many years now, im sure theres others but those are just to name a few

[oleshifty]

was waiting for you to chime in....how's the camaro doing?

[TvsQuez]

I just don't feel I need to do a swap when I feel my motor is a perfectly good motor still. That's all i'm putting to it is 9-11psi, and i'm good. I just wanted to add on meth, new heads, and maybe a shot. I keep being told to just do a 6.0 swap, and i'm just not buying it for some reason. I keep hearing the 5.3 is a strong motor, and to stick with it too because there's more potential in it. Thanks for the help everyone. Are there any suggestions at all? like bottom end?

the number 7 shit is bullshit. a motor fails cause it was mistreated or improperly handled. a 5.3 should easily make 800 rwhp without a hiccup if in the right hands and given proper support. Like cool IATs, cool ECT, good tune, smart driver, good tune.

also to get 500 hp i wouldnt consider 2 power adders for such a low hp level goal. 500 is roughly 9-11 psi. two power adders is just an excuse for the lack of another. Plus its more complications especially for such a goal as of 500.

i think ducky has been unhurt for several years at 500ish with his 5.3, trevor1 has well over 600 on a 5.3 for many years now, im sure theres others but those are just to name a few

[rutroe]

the number 7 shit is bullshit. a motor fails cause it was mistreated or improperly handled. a 5.3 should easily make 800 rwhp without a hiccup if in the right hands and given proper support. Like cool IATs, cool ECT, good tune, smart driver, good tune.

also to get 500 hp i wouldnt consider 2 power adders for such a low hp level goal. 500 is roughly 9-11 psi. two power adders is just an excuse for the lack of another. Plus its more complications especially for such a goal as of 500.

i think ducky has been unhurt for several years at 500ish with his 5.3, trevor1 has well over 600 on a 5.3 for many years now, im sure theres others but those are just to name a few

I guess we don't know how to handle the power...is that what you're saying? Seems like an awful lot of people have had the same problem...must be a f**kin conspiracy.......