408 SBC cam question
408 SBC cam question So right now I have a 408 sbc at 9.7 compression with ported 997 cast heads with 2.02/1.60 valves and a 286H Comp cam. I also have a 3600 stall with 3.73 gears.
Would it be worth it to move to some Vortecs with a different cam?
If so what cam should I get?
If you have a different combo to offer me i have 1k to work with.
Would it be worth it to move to some Vortecs with a different cam?
If so what cam should I get?
If you have a different combo to offer me i have 1k to work with.
You could step up the cam a little bit since you have the cubes for it. You can step it up to the 292h or even possibly the 305h. My buddy ran the 292h in a 350 with out the box trickflow's and it ran bottom 11's in a 3000 lb car. To run that though you will have to step up the compression somehow like a smaller chamber head or thinner head gasket. As far as heads, the vortec's in my opinion have too small of a runner for a 408 but they would be better technology than what you have. You could go with the big port vortec's but they are a grand for the set and thats all your budget. If you can afford those heads you might want to try to go aluminum and get a set if 195 runner trickflow's from jegs for the same price.
All in all you need more compression if you want to run a bigger cam and some better heads with a runner size from 195-210 if its a street car and a 220-230 runner more for the track.
All in all you need more compression if you want to run a bigger cam and some better heads with a runner size from 195-210 if its a street car and a 220-230 runner more for the track.
What do you think about those heads?
https://www.patriot-performance.com/...&cat=40&page=1
Then I could save up 200-300 more for a different cam.
I am pretty should I am just gonna go with a thinner head gasket to raise compression.
I will be driving this on the street but I really dont care about driveability.
As for the cam I don't really want to rev over 6.5 k RPMs.
https://www.patriot-performance.com/...&cat=40&page=1
Then I could save up 200-300 more for a different cam.
I am pretty should I am just gonna go with a thinner head gasket to raise compression.
I will be driving this on the street but I really dont care about driveability.
As for the cam I don't really want to rev over 6.5 k RPMs.
Ok I will try a different approach. You asked about changing heads or cam, must be looking for more power. Well the open combustion chamber on that type of head your using is hurting your power due to the combustion chamber design, and the port design does not flow to well. Research it and you will see. Im guessing your running a cam ground on a 110 and that your running a carb, is this correct? I will say that from my experience and unfortunately Im 45 years old that I have learned a little along the way. Best iron head in my opinion for what your doing considering the info you posted would be a Dart Iron Eagle Platinum in 200cc port size. Try to get the compression up close to 11.1, but will require premium fuel. Also try 34 to 36 total timing with that bore and stroke. Also get a annular discharge carb if you can do some trading and such and will be doing some street driving also. I happen to have this cam that I offered and think it will work better than your current cam and was just trying to help.
Those heads are 895 a piece so that is 1800 for the set. For that amount of money you can get trickflow 215 runner heads for 1400 and have enough for cam kit and gaskets. The 62 cc chamber 195 runner tfs heads are available thru summitracing for 1099 for the set. You could get a set of edelbrocks for around the same price. I would mention other names such as AFR or darts or brodix but those are way out of your budget. Raising your budget to 1500 will let you work with some better heads.
Save a lil more and get the TFS heads with the 215 runner and put them on with the cam you have. Later on swap in the bigger cam.
My buddy with the car I mentioned before used to have 292 casting camel humps on the car and it was running 11.9-11.8 on the motor then he swapped to 195 runner TFS and it went mid 11's then he swapped in the 292 cam and went bottom 11's.
Save a lil more and get the TFS heads with the 215 runner and put them on with the cam you have. Later on swap in the bigger cam.
My buddy with the car I mentioned before used to have 292 casting camel humps on the car and it was running 11.9-11.8 on the motor then he swapped to 195 runner TFS and it went mid 11's then he swapped in the 292 cam and went bottom 11's.
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The Dart Iron eagle platinum heads are on ebay for $870.00 a set assembled plus $68.03 for shipping. Check out Brzezinski Racing Products. www.castheads.com for some interesting info.
Last edited by carzmed; Jan 14, 2009 at 10:39 PM.
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Brett Foote Do you guys think this will be a good cam to work with either the Patriot 225 or the Iron Eagle Platinum heads 200 or 215?
http://www.jegs.com/i/Lunati/638/60105LK/10002/-1#
http://www.jegs.com/i/Lunati/638/60105LK/10002/-1#
Ok I must just be used to lookin at ls1 stuff all the time becuase it seems like alot of 402/408 use 225 intakes.
So far this is what I have.
Raise compression to 10-10.5 to 1
200 Iron Eagle Platinum heads
Maybe a Lunati Voodoo cam?
Lift: .525''/.546''
Duration: 284°/292°
RPM Range: 2500-6600
So far this is what I have.
Raise compression to 10-10.5 to 1
200 Iron Eagle Platinum heads
Maybe a Lunati Voodoo cam?
Lift: .525''/.546''
Duration: 284°/292°
RPM Range: 2500-6600
Launching!
Joined: Oct 2006
Posts: 289
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My last 406 had a set of Trick Flow heads (195cc) and a Lunati solid lifter cam with similar specs (I could find the exact cam if you're interested). I think the LSA was 108. With a victor jr intake and a 780 holley carb, my 3800lb Nova ran 12.20's at 108MPH. I had 3.73:1 gears and a 3000RPM converter. It wanted 4.11's with a 28" tall drag radial. I had manual brakes, so I am not sure how power brakes would have liked that cam. Another thing, I had just over 10.5:1 compression and I touched up the bowl area and gasket matched the heads and intake. Hope this helps!
If you could find the cam that would be great because my car weighs at least 400-500 pounds less so that would put me at my performance goal of running close to mid 11s. Plus i have a 3600 coverter so I should get there fine with traction.
Also what did you rev your car out to?
Also what did you rev your car out to?
