NA 500hp, how cheap is it really?
how easy is it really to get 500whp out of a 6.0 motor? I’ve been told that is actually really easy to achieve but again, by bunch of people that haven’t done it lol. Does it HAVE to get higher compression pistons?
Requirements:
93 oct. 5spd trans. Dual 2.5” exhaust, headers back.
car is 3200lbs so won’t need much to get moving. My 5.3 pulls great before turbos get going so a 6.0 with 500whp should be a blast as well.
Short answer no, it is not easy or it would not be such a big deal to hit it. You see that a lot though. The commentary I mean.
Do high compression pistons. On 93, you can get to 12.3 compression but that is right at the limit. You will want some cam to get there because you will need rpm. Figure to peak around 6800-7000, and shift at 7600 to even take advantage of the power
It is much easier if you go aftermarket heads. Every little thing matters when you chase that number.
price is important to see the cheapest way to make it. I don’t wanna throw 5k at a 6.0 all redone when could potentially buy another ls engine that makes that power with a cam change or whatever for same price.
just must have same engine mounting as the 6.0 so my swap kit will bolt up to it.
Trending Topics
Short answer no, it is not easy or it would not be such a big deal to hit it. You see that a lot though. The commentary I mean.
Do high compression pistons. On 93, you can get to 12.3 compression but that is right at the limit. You will want some cam to get there because you will need rpm. Figure to peak around 6800-7000, and shift at 7600 to even take advantage of the power
It is much easier if you go aftermarket heads. Every little thing matters when you chase that number.
For example, is it noticeably cheaper to build a 6.0 to make it so it’s worthwhile to build the 6.0 even though easier to put a larger ls motor in. That’s more what information I’m trying to feel out. There’s so many combinations of these engines. On flip side maybe it’s going to cost $5000 into motor anyways so just buy this larger ls engine and be done with it cause the price factor is close to same.
When I put my turbo 5.3 together I listened to countless stories of these “sloppy” builds for $3000 all said and done. Well I’m 10k into my turbo setup lol. I’m not ok with just piecing it all together and look rushed. I found myself spending more and more to just do things differently but not worry about it later. I’m not hating on those cheap builds. Mine is custom into a Nissan so costs more! Fuel lines etc. point is I know at the end of it all, it has a price tag.
The Best V8 Stories One Small Block at Time
At this point it really depends on your budget. To make things " EASY" you'll be better off stroking the motor to a 408ci motor then applying your heads, cam and intake....
To obtain 500 rwhp you'll need at least 575 horse at the crank. Its possible with a 6.0 motor but its really pushing the limits on pump gas and hydraulic roller "simplicity". You'll need roughly 1.57 horsepower per cube. Its takes some close attention to detail.
I'll run a quick build by you and you can go from there. Check out Richard Holdener 20 LS intakes tested article. One of the combos as follows.
Forged 6.0
231/247 cam
AFR 230s
Fast 102mm
Motor made 590 horse or so at the crank.
Check out my cookbook thread as i posted all kinds of combos and im not done yet. Im just letting the heat build up so to speak

https://ls1tech.com/forums/generatio...or-builds.html
Here is the link to the article as i mention above.
https://www.hotrod.com/articles/20-l...ifolds-tested/
Check out my cookbook thread as i posted all kinds of combos and im not done yet. Im just letting the heat build up so to speak

https://ls1tech.com/forums/generatio...or-builds.html
Here is the link to the article as i mention above.
https://www.hotrod.com/articles/20-l...ifolds-tested/
price is important to see the cheapest way to make it. I don’t wanna throw 5k at a 6.0 all redone when could potentially buy another ls engine that makes that power with a cam change or whatever for same price.
just must have same engine mounting as the 6.0 so my swap kit will bolt up to it.
You could also swap in a ls7 and then complain you wish you had 700 at the tires.
You could also swap in a ls7 and then complain you wish you had 700 at the tires.
I had spend another 200 to make all braided line from tank to motor, bulkhead fittings needed. Welding hotside was $500. Turbo feeds, drains... yada yada it’s just keeps adding up. Have $700 for tune. $780 for radiator fan/shroud.
much of that MAYBE had to be done for the NA but none of the custom work. I had all the swap kit already for that initial 3300 and I could’ve sold my 5.3 that is all redone. So honestly would’ve really been driveshaft and motor. Could’ve kept the TB and intake, used the returnless v8 style fuel filter system with stock chassis lines. Just would’ve been so much easier and had AC.
now that my turbo car done with exhaust. (This week) I have another car sitting around with really. I’ve outside and interior so thinking of throwing a less custom NA swap.
Last edited by Z32_5.3; Mar 17, 2020 at 07:21 AM.
I had spend another 200 to make all braided line from tank to motor, bulkhead fittings needed. Welding hotside was $500. I ended up needing water pump spacers, power steering hose I had to make... yada yada it’s just keeps adding up. Have $700 for tune. $780 for radiator fan/shroud.
EDIT....I see you added another paragraph. I agree it obviously cost you more to fab up things like the hot side and actually purchase turbo components and larger injectors, etc. So the turbo setup was likely $3k or less.
idk just feel that the total price where I am now with turbo car in general, I could’ve been at same price range if NA. Maybe not if counted every penny up but I’m thinking it would’ve been pretty close.
every. single. time.






