Need some help with my lsx 454 engine.
LOL, well ok. The first thing you need to buy a air to water cooler for your CC...haha
Honestly, the best advice I can give you for goals of that level is to call Shawn at Va Speed as far as sponsors on this board.Tell him what you want out of it and be prepared to write a nice fat check. I would let him have complete control of the heads/cam/valvetrain. You can do the rest of it, but I would leave all of that in the hands of one person. There are a couple others out there that could do a good job with it also, but they are not sponsors...
Honestly, the best advice I can give you for goals of that level is to call Shawn at Va Speed as far as sponsors on this board.Tell him what you want out of it and be prepared to write a nice fat check. I would let him have complete control of the heads/cam/valvetrain. You can do the rest of it, but I would leave all of that in the hands of one person. There are a couple others out there that could do a good job with it also, but they are not sponsors...
It makes 500 rwhp now with the crappy top end.
If I'm going to spend $5000 on it to get less than 100 hp I will stay with what I have.
I am not saying you are crazy at all. It can be done, it is just that when you start getting to the 600 rwhp line, that the law of diminishing returns come into effect. You start having to spend more money to get less back.
I amy be totally off base, but that is just my experience. Like I said, give Shawn a call, he would be way more qualified to give you a quote for an exact price..
I amy be totally off base, but that is just my experience. Like I said, give Shawn a call, he would be way more qualified to give you a quote for an exact price..
LOL, well ok. The first thing you need to buy a air to water cooler for your CC...haha
Honestly, the best advice I can give you for goals of that level is to call Shawn at Va Speed as far as sponsors on this board.Tell him what you want out of it and be prepared to write a nice fat check. I would let him have complete control of the heads/cam/valvetrain. You can do the rest of it, but I would leave all of that in the hands of one person. There are a couple others out there that could do a good job with it also, but they are not sponsors...
Honestly, the best advice I can give you for goals of that level is to call Shawn at Va Speed as far as sponsors on this board.Tell him what you want out of it and be prepared to write a nice fat check. I would let him have complete control of the heads/cam/valvetrain. You can do the rest of it, but I would leave all of that in the hands of one person. There are a couple others out there that could do a good job with it also, but they are not sponsors...
Tell Shawn the budget first and then what you want from the car. He's done amazing things with my very very mild 427 and still pulled 576/530 out of it with WCCH Stage 3 L92's and a FAST that he modified - not just ported but seriously changed...
Tiny cam for a 427 - hell, it would be considered medium size for a 346. 
Teching In
Joined: Nov 2009
Posts: 45
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From: USA
You don't need the need the 6 bolt heads.
But if you must here a list off the top of my head.
ls7 heads
fast 102 with fuel rails
ls7 injectors or you can use ls1 style with spacers on the fast 102
injector harness (adapter)
I may be missing some things, but that basically the run down.
I would suggest and waiting a few weeks to get the new AFR 245s cathedral style heads. They are going to blow everything out of the water. You ask how I know this? Lets just say I have a friend that knows the guy that is making them lol. You don't hear much about them, but thats fine. As as they come out you will. HAHAHA
Good luck with your build.
But if you must here a list off the top of my head.
ls7 heads
fast 102 with fuel rails
ls7 injectors or you can use ls1 style with spacers on the fast 102
injector harness (adapter)
I may be missing some things, but that basically the run down.
I would suggest and waiting a few weeks to get the new AFR 245s cathedral style heads. They are going to blow everything out of the water. You ask how I know this? Lets just say I have a friend that knows the guy that is making them lol. You don't hear much about them, but thats fine. As as they come out you will. HAHAHA
Good luck with your build.
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From: Los Angeles, California (818)
I am not saying you are crazy at all. It can be done, it is just that when you start getting to the 600 rwhp line, that the law of diminishing returns come into effect. You start having to spend more money to get less back.
I may be totally off base, but that is just my experience. Like I said, give Shawn a call, he would be way more qualified to give you a quote for an exact price..
I may be totally off base, but that is just my experience. Like I said, give Shawn a call, he would be way more qualified to give you a quote for an exact price..
I know the higher horse you go the more expensive it gets but Over $5000 for less than 100 hp??? Any one chime in on the average cost per horse??
Also it makes just under 500 rwhp through a stock ls1 slightly bored throttle body and stock LS6 Intake. My tuner had a hard time taking enough fuel out of this engine to make it run. (Just could not get enough air in there).
What are people seeing out of there 454's or 440's with this kind of top end??
Last edited by 1Hotbird; Jun 1, 2010 at 09:07 PM.
Can you send me a PM with his phone number. Thanks
I know the higher horse you go the more expensive it gets but Over $5000 for less than 100 hp??? Any one chime in on the average cost per horse??
Also it makes just under 500 rwhp through a stock ls1 slightly bored throttle body and stock LS6 Intake. My tuner had a hard time taking enough fuel out of this engine to make it run. (Just could not get enough air in there).
What are people seeing out of there 454's or 440's with this kind of top end??
I know the higher horse you go the more expensive it gets but Over $5000 for less than 100 hp??? Any one chime in on the average cost per horse??
Also it makes just under 500 rwhp through a stock ls1 slightly bored throttle body and stock LS6 Intake. My tuner had a hard time taking enough fuel out of this engine to make it run. (Just could not get enough air in there).
What are people seeing out of there 454's or 440's with this kind of top end??
https://virginiaspeed.com/Home_Page.html
757-468-5101
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Verdad Gallardo TECH Fanatic
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like is said before, well wait and see muahahaha.
I do agree though that ls7 heads are beast.
I do agree though that ls7 heads are beast.
And once I figured if it dose about a 100 hp thats $60 per horse thats pretty good.
But if its only 25-50rwhp I can spend that $5000 on something else.
Like I said I'm happy with it now it runs great its dependable, but I would like it to be done right!
WHAT SHOULD I EXPECT REALISTICALLY FROM THIS COMBO?? WILL I BE CLOSE TO 600RWHP OR MORE LIKE 550RWHP??
Last edited by 1Hotbird; Jun 2, 2010 at 05:13 PM.
Kevin made 576 rwhp with a pretty straightforward setup. Was it cheap? Probably not. Was is worth it? I would say he would tell you YES.
I think you can be closer to 600 rwhp than 550 with ~$5k budget.
One thing to remember, is that there is 30-40 rwhp in the details. You may could hop on a website and order 90% of the same parts that you would get if you let Shawn handle it, and I would be willing to bet you would be down 20-30 rwhp. This like anything else, the devil is in the details.
I only brought up the 550 as an example of different part choices that would be optimum for different goals..
I think you can be closer to 600 rwhp than 550 with ~$5k budget.
One thing to remember, is that there is 30-40 rwhp in the details. You may could hop on a website and order 90% of the same parts that you would get if you let Shawn handle it, and I would be willing to bet you would be down 20-30 rwhp. This like anything else, the devil is in the details.
I only brought up the 550 as an example of different part choices that would be optimum for different goals..
Here is what i was thinking;
Prices are ball parked;
PI Heads with hollow stem valves and head gaskets $3000
Fast intake and throttle body $1500
Nasty fuel rails, Ls7 rockers and push rods $600
dyno tune $500
misc(bigger air tubes ect) $500
Cam $400
That's already up in the $6500 range but I can sell my heads intake fuel rails ect to hopefully get back down to the $5000 range.
I'm running a 85mm Maf now do they make a bigger one? I see tsp has a 100mm maf is that what people are using with the 102mm intakes??
Can I use my current air box lid or is it to small?
Also what's better the P.T.M. 102mm throttlebody or the fast???
Prices are ball parked;
PI Heads with hollow stem valves and head gaskets $3000
Fast intake and throttle body $1500
Nasty fuel rails, Ls7 rockers and push rods $600
dyno tune $500
misc(bigger air tubes ect) $500
Cam $400
That's already up in the $6500 range but I can sell my heads intake fuel rails ect to hopefully get back down to the $5000 range.
I'm running a 85mm Maf now do they make a bigger one? I see tsp has a 100mm maf is that what people are using with the 102mm intakes??
Can I use my current air box lid or is it to small?
Also what's better the P.T.M. 102mm throttlebody or the fast???
Kevin made 576 rwhp with a pretty straightforward setup. Was it cheap? Probably not. Was is worth it? I would say he would tell you YES.
I think you can be closer to 600 rwhp than 550 with ~$5k budget.
One thing to remember, is that there is 30-40 rwhp in the details. You may could hop on a website and order 90% of the same parts that you would get if you let Shawn handle it, and I would be willing to bet you would be down 20-30 rwhp. This like anything else, the devil is in the details.
I only brought up the 550 as an example of different part choices that would be optimum for different goals..
I think you can be closer to 600 rwhp than 550 with ~$5k budget.
One thing to remember, is that there is 30-40 rwhp in the details. You may could hop on a website and order 90% of the same parts that you would get if you let Shawn handle it, and I would be willing to bet you would be down 20-30 rwhp. This like anything else, the devil is in the details.
I only brought up the 550 as an example of different part choices that would be optimum for different goals..
You should have said I need dish pistons for my new F1 procharger setup!!
Good luck man. I really mean it. I hope this all works out for you. If you get help from the correct people, I know it will.
I just called Shawn, he was not in. I was told to try Emailing him so that is what I did!!
I got Shawns recommendation today! For a little over my budget he says I can be in the 625 rwhp + Range. I now I have to save up a little more.
Here is what he recommended;
Performance Induction LS7 heads with hollow stem intake valves and hyd roller springs
Ported FAST 102
102mm tb
Stock ls7 rockers
Smaller cam
3/8 pushrods
100 mm maf
Here is what he recommended;
Performance Induction LS7 heads with hollow stem intake valves and hyd roller springs
Ported FAST 102
102mm tb
Stock ls7 rockers
Smaller cam
3/8 pushrods
100 mm maf