475-500 rwhp NA
Thread Starter
Staging Lane
Joined: Aug 2004
Posts: 82
Likes: 0
From: Houston, Texas
475-500 rwhp NA Well, im am fixing to get a 2002 Camaro SS M6, and I want to have 475-500 rwhp NA. I'm going to be doing the following right off the bat:
Kooks LT Stainless 1 3/4
TSP True Duals
ASP Pulley
TSP Lid
Jantzer TB
Dyno Tune
I want to go with a 383 stroker with a bad *** H/C package. This will be a daily driver. I've read about H/C packages, but not for stroker motors so I don't know much about that. Is this a reasonable goal, and if so, does anyone have an example of a setup that would work? Thanks, Ryan
Kooks LT Stainless 1 3/4
TSP True Duals
ASP Pulley
TSP Lid
Jantzer TB
Dyno Tune
I want to go with a 383 stroker with a bad *** H/C package. This will be a daily driver. I've read about H/C packages, but not for stroker motors so I don't know much about that. Is this a reasonable goal, and if so, does anyone have an example of a setup that would work? Thanks, Ryan
You could also go with the edelbrock carb setup, i've heard it's supposed to yield some pretty nice gains. Or you could just forge it and bolt on a procharger or a turbo kit.
TECH Apprentice
Joined: Jun 2004
Posts: 355
Likes: 0
From: Houston,TX
I bet it can be done. I've heard of 346's putting down 470 with bad *** heads and a big ***** of a cam. I don't know the validity of it, but I wont say out of the question since I have seen cam/headers car put down 430 rwhp. Imagine what heads would do. I would say a reasonable goal. Good luck, hope it turns out.
Anything is possible so long as your budget can afford it. I'm building a 383 stroker with similar power goals in mind. First thing you have to do is ask your self this question, "Self, what do I want this car to do?" Then make the make the list of what you want done, and prioritize that list. After you have your wish list, start filling in the dollar amounts for each item on that list. I think you find real quick, as I did, that building a 383 is just as expensive as some other alternatives that will easily meet your goals. I chose the 383 route for a few reasons... 1) I wanted the added torque a stroker provides. 2) 500rwhp N/A 383 strokers are not very common.
Send me a PM if you want anymore details.
Send me a PM if you want anymore details.
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TECH Fanatic
Joined: Nov 2003
Posts: 1,380
Likes: 0
From: The point of no return...
It's possible. A great set of heads from one of the sponsors and a nice sized cam will get you at least 475. This combo includes all the bolt-ons of course, which you seem to have mostly taken care of. Good luck with your setup. I'm contemplating on doing the same to mine...
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i see absolutly no problem with getting your goal....there are quite a few 346's putting 450-500rwhp...i think i just saw someone with tea2.5 heads and a fms cam come real close to that 500rwhp...put a 383 in there and it should be no problem...good luck
I'm finishing up my all bore 388 and HOPE to reach the 475-500rwhp range........it's still up in the air (don't want to get my hopes up and then have a letdown) but I figure with my Stg 3 heads, all the boltons, coated everything (pistons, heads, valves), a Solid roller 244/249 0.640"/0.640" on a 112LSA cam, in a M6 car with an aluminum flywheel and a 10bolt I SHOULD be able to get close. 
so yes......it's not "too hard...." but it will take some work....
so yes......it's not "too hard...." but it will take some work....
I had an iron block 422ci and did 475rwhp/505rwtq with Speed Inc. tuning and dual exhaust. I had a 244/244/112 cam.
I had a 242/242//114 Lunati cam before that that idled a lot better.
I think a 383ci with a big cam and 11.5:1 will get there with proper tuning and exhaust.
I had a 242/242//114 Lunati cam before that that idled a lot better.
I think a 383ci with a big cam and 11.5:1 will get there with proper tuning and exhaust.
https://ls1tech.com/forums/dynamometer-results-comparisons/217504-tea-stg-2-5-ls6-heads-g5x4-dyno-track-times-within.html
I did this with a Th400 as well on a 29in Hooser QTP with street tires and a M6 you would be MUCH higher rwhp wise. I would guess 40rwhp higher.
I did this with a Th400 as well on a 29in Hooser QTP with street tires and a M6 you would be MUCH higher rwhp wise. I would guess 40rwhp higher.
Staging Lane
Joined: Nov 2001
Posts: 68
Likes: 0
From: Sydney, Australia
500rwhp or a little more is there in a 383CID motor but you will be gunning for peak figures via a crankier 'bump stick' (a solid perhaps). You may battle with your average HP.... but if it is going into service at the strip, that shouldn't overly concern you.
Depending on your tolerance for piggish cars, you may not find it the nicest drive in daily duties but some guys quite like that 'hunting' characteristic.
In a street/road racer, you may want to have a closer look at your cam profile
and decide if you want more power 'under the curve'. In that case, you may decide to trade that big peak power figure for more overall 'poke' across your rev range.
The final figure will depend on what you plan to do with your car
Depending on your tolerance for piggish cars, you may not find it the nicest drive in daily duties but some guys quite like that 'hunting' characteristic.
In a street/road racer, you may want to have a closer look at your cam profile
and decide if you want more power 'under the curve'. In that case, you may decide to trade that big peak power figure for more overall 'poke' across your rev range.
The final figure will depend on what you plan to do with your car
Last edited by 8POTS; Sep 30, 2004 at 05:48 AM.
Originally Posted by AllThrottleNoBottle
Who's 383 stroker kit is the most reliable, and durable? I can't have this breaking down on me.
Not sure there is an easy way to answer that. I'm using an Eagle crank, Diamond pistons, & Lunati rods. You may want to call around and do a few seaches to help you decide what will be best for you. Also, check out "Power Secrets by Smokey Yunick". That book does a realy good job of describing how all the componets of a motor work together, and gives you a good idea of how much is involved when building your motor.
I had a Lunati 383 Stroker with a set of Absolute Speed LS6 heads, 236/240 XE-R cam. I put down 460rwhp at 12.5:1 A/F through a 12bolt w/4.11 gears and the car was an automatic. My exhaust was a big restriction or it would have made more power. Anyway, if I would have had a 10 bolt and a M6 I would have been pretty close to that number...
your gonna be spending some major bones for 475-500 hp na...you'll need some heavy suspension mods to support that kind of NA power....your easiest way to go would be forced induction, my choice would be a FI cam with a sts rear mount turbo, that should put you close with enough boost
and you always have nitrous as a backup plan, its oh too easy
and you always have nitrous as a backup plan, its oh too easy
pm SAM98WS6 i saw his car dyno tuned my Mikey @ Rapid Motorsports and it did 470 something with a 383 stroker, from what i can remember this was through a 12 bolt w 4.10, all belts and a ewp. the heads were stage II LS1 Rapid and the cam was a custom grind from Rapid.