2000 tahoe with 5.3 to be punched?

[bbfao]

I have a 2000 tahoe with the 5.3. I read an article in hot rod about punching it to a 350 and swapping the cam for a gain of 130 hp, does anyone know anything about this? and i know the 6.0 doesnt have 430hp

 

[hoe]

LMAO. Dude that would be a waste of time and effort. And I can till you 130hp is a dream for a cam bolton. Try like 30hp max. Even a tired 6.0 can do better is all Im saying. Also a 350 is still a smaller engine than the 6.0. Do you have the link to the article?

6.0 can be built to make 1000hp if you know what your doing.

 

[bbfao]

so by punching it .250 and the cam swap 130 is a dream? I never said just a cam swap

 

[JennaBear]

It might be possible, but it would not be a streetable setup in a Tahoe.

 

[JKmotorsports]

so by punching it .250 and the cam swap 130 is a dream? I never said just a cam swap

Well, the only thing you mentioned was a cam and boring it over. And no, any streetable cam only swap will not get you an extra 130hp on an otherwise stock motor (unless you're regaining 130 lost hp from a cam with extremely badly worn lobes). Even a balls to the wall, all out race-only cam won't, not w/o supporting mods. All the air your cam is going to try to ingest won't do any good if the heads, intake, and exhaust don't flow enough to compliment the cam.
Now, if the build in the article included heads, intake, and exhaust, then I would say yes, definitely possible.

 

[hoe]

It might be possible, but it would not be a streetable setup in a Tahoe.

That would be a far cry for a dream. It would need to have a CARB intake with a 750+ cfm carb. Long tube headers, and a cam that starts to kick in/on at 4000 rpms and revs out to 7500.

---------- Post added at 09:35 PM ---------- Previous post was at 09:30 PM ----------

so by punching it .250 and the cam swap 130 is a dream? I never said just a cam swap

Punching a motor dont do squat really. Theoritcally similar bore, or cleanups over bore yeild little to no extra power. You make more power by increasing the stroke. So a camshaft will never get you 130 hp.. You put the best cam to match your combo, and you may yeild 35hp max.

You are talking about a bored 5.3 to make it a 350 or a 5.7 which still is no match for the 6.0. Also after the bore, that will be it for that engine, so if it fails, you will not be able to bore it further to clean it up and rebuild. Take a 6.0 and bore it and also STROKE it. You can come up with a 6.7 liter 408 cubic inch monster. Still be fuel efficent cause of the electronics as well. Well I know that my future plans.. I plan on making 800hp with it, and it will have some sort of induction. A NA 408 can make 550hp and be streetable easy.

 

[JennaBear]

That would be a far cry for a dream. It would need to have a CARB intake with a 750+ cfm carb. Long tube headers, and a cam that starts to kick in/on at 4000 rpms and revs out to 7500.

Hence my statement that it would not be streetable, although fuel injection would be a lot better. There are many LS1s out there that are easily pushing this power.

 

[sanddperformance]

you can build a iron block ls1 out of a 5.3 but for the money you should buy a lq4 it will bolt right in and get a tune on your ecu

 

[blueflamed03]

why not 370 it

 

[bbfao]

http://www.ls1truck.com/forums/fron...o-100-horsepower-performance-gain-budget.html
cam kit, headers with y-pipe, and tune for 100 hp, so why is the punch with cam so ridiculous?