I am looking to get over 400 Horse in the Camaro I am getting its has a
350sbc with edelbrock intake and carbs. I would like to mod it to get over 400HP to the wheels. I am just wondering one of the easier and less expensive ways to do it.. Any Ideas? I was thinkin new heads and a huge cam? IDK what else I would have to do.....help please....thanks in advance

 

Im a newby at this myself, I just finished a first sbc project with a weiand blower that puts out 572 wrhp at 5500 rpm. You're on the right track with headers and the cam; I used the Comp Cams Nitrous HP Camshaft (Lift: .507''/.525'' RPM Range: 2800-6800 - Part #CL12-568-4) this is one of the most extreme cams out. However, another serious part you need to look at is the heads. The bigger the intake port size, the better, as well as valve size. Typical big hp heads would have a 220 intake port, 2.02 intake valve, and 1.6 exhaust vale. You can go bigger, but the money for it might not be worth it. The cheapest I ran across are the Dart Pro 1 Heads. For $1200 for the pair, that's your best cheap bet. Consider your compression ratio aw well, if you're building a NA engine; no nos, no supercharger, no turbos, higher compression is better. buy heads that have are 64cc, try to stay away from heads above that. Last but not least is your drivetrain. getting centerforce clutch; or torque converter for automatic, aluminum or carbod driveshaft, aftermarket LSD, performance lower control arms, racing shocks and springs, and a serious torque arm will help you get the hp to the rear. UMI performance is were I control arms and torque arm, and KYB shocks and springs. All are low cost and bold on. there are many other thinks to think about, like ignition and chassis, I had to blue print the entire car before I took out one bolt. Plan well, and watch your budget. 400hp is easier than you think.

 

Thanks! I wanna keep it NA. I want it to be all motor... Yea the car already has headers so I was thinking new heads and a cam and then go from there...thanks again

 

Yea, over 400HP to the wheels with a 350 using Edelbrock carbS (plural)? And of course you want it cheap, and streetable right? Mmm hmm, how about a cherry on top?

What's your budget for this? Is this going to be a pure street car or is it going to ride a trailer to the track? If street, you want cubic inches, and dollars. If trailer, lots of dollars, but you can just rev it to the moon, so you can get by with less cubes. Your choice. An Edelbrock carb may not leave you smiling though.

 

done.

http://www.jegs.com/webapp/wcs/store...60264_-1_10187

 

Done for is more like it. Old school cam might make the peak power, but it will certainly be peaky. Besides, that's 400 gross flywheel HP, the originator said 400 HP at the wheels.

What heads do you have? If you say "stock 350", consider yourself cyberslapped in advance. Need specifics - some "stock" 350 heads are capable of 400 HP, most are not. And, 400 HP at the wheels is beyond the capability of almost any "stock" 350 head NA.

Need specifics on the intake and carb(s). Most likely, what you have is not capable of 400 RWHP.

 

+ nitrous

done..

 

Out of scope.

Besides, I'd want to know a lot more about the base engine before I gave a blanket nitrous recommendation.

 

Check out my sig. I'm pretty sure I'm close to 400 RWHP, but I'm also running a manual which doesn't rob as much HP.

 

aint that a bitch lol.

If you dont know anything about the internals, I wouldnt trust it for over 5500 rpm. Get some dart or world heads, a hydraulic flat cam and intake that will go to 5500. Roller rockers and electric water pump will help free up power too. And don't forget about a matching carb.

 

That's what I'm trying to get at. 400 RWHP isn't a bolt-on task, it's a ground-up build.

 

if going for cheap street, nothing like a good ol 400 sbc camed and headed to make over 400 rwhp
if you want to keep your 350, stroke it
nasty cams make power, but its all up top and not fun to dog around in town

 

"Check out my sig. I'm pretty sure I'm close to 400 RWHP, but I'm also running a manual which doesn't rob as much HP."

With the quarter mile times you posted I bet you are a lot closer to 300rwhp than 400rwhp. Nice times none the less.

Back on topic:

For 400rwhp you need a good set of heads for openers. I believe the new AFR 195cc Eliminators or the Dart Pro One Platinum 200cc heads will do it. However they will need all the supporting mods such as a first class exhaust system and a first rate intake system.

For a cam something such as the Comp Cams XFI series should do the trick. Also you can't skimp on the valve train. You will need first rate pushrods, rocker arms and at the very least 7/16" rocker arm studs. Last but not least is a correctly assembled motor. Just bolting a motor together will not get the job done. All the little details need to be done.

 

you'll need big heads like 200cc that are flowing ALOT. then a nice sized cam with a good deal of lift. .550-.600 will do. roller cam would be great. not sure what to do with a flat tappet. probly go solid lifter for those numbers

the heads will need to be something like AFR competition ported 195's flowing 280cfm or so. that will get it done

wont be very streetable tho

 

Holley systemax II kit or Edelbrock Performer RPM complete package, both guarantee approx 425 hp on a small block chevy, though there are some stipulations about compression ratio. 400 to the wheels might be a little harder, but hell 425 at the crank would be plenty respectable. Budget's not to bad either, .
Be sure to budget for a converter though if you're running an auto.
EDIT: heh just followed the link further up, oh well.
Alternatively look into a mini blower like a weiand 144. Boost is good for that kind of thing.
Nitrous kits too of course.
Lot of it depends on what's in the bottom half of the motor already

 

I haven't ever run my thirdgen at the track? Show me where I posted it. I think you were looking at my fourth gen times. I'm still in the process of breaking in my new clutch. I firmly believe my thirdgen engine combo is good for 400 hp. Check sig above.

 

"96 Camaro Z28. Bolt ons. 13.4 @ 105mph"

My mistake for the quick read.

 

i have a 383 stroker and it only puts out 470 horse. For NA motors like ours its going to be very difficult to put out 400 rwhp while still being NA. If you stroke it and put an aggressive cam in it, you may be around that point. I have about as aggressive as you can put in while still be driveable for the roads. I also have a electrical water pump, so its going to be a long and lengthly process. Let me know if you can do it.

 

Factoring in 15% drive-train loss (assuming you have a 5 speed), you need roughly 475hp @ the crank to turn out 400hp @ the wheels.

490hp - http://store.summitracing.com/egnsea...09693&D=309693

Trick Flow also offers other kits ranging from 350hp - 465hp.