I am looking at installing this cam in my 350 when I get some
TFS 23 degree heads. I was just wondering if anyone else is
using this cam and what kind of hp and torque figures it produces.
I will be using a performer intake and possibly be going back
to my computer controlled quadrajet. I am looking for a nice
streetable engine with alot of power down low, and hope these
additions will help.

 

A 350 with those heads needs a bigger cam than that in my opinion. a 268 would be a better choice.

 

Super Chevy used that cam in their Danger Mouse 350 and it pulled about 350 hp. Very good choice for a streetable 350 with lots of low end grunt.

 

yes LOW END is what its about. dont expect to make good HP numbers up top. you going for a track car or a street car?

I run the XE262 in mine, along with several other people. its a good cam for street, has a very very mild idle, works with stock stall, and is very capable, even more so with a blower.

 

Yeah i would say a bigger cam is in order. I would use at least the XE-262. You will not lose much low-end torque but will have more average torque and definitely more power. Just my opinion though!

 

Super Chevy went to the XE 262 right after the 256. They found little improvement in power, only 5 or 10 hp at high rpms, but lost low end torque.

If anything, the Crane PowerMax 272 would be more helpful. It outperforms the XE262 on a 350 across the board.

 

I have wheelspin problems with the XE262 in my mild 350, not like you're talking about a weak bottom end or anything even if it does give up a bit to the 256... I would go with the 10 extra hp in the 262 if I were you... It's perfectly streetable IMO.

 

Heck, I put a XE268 into my 305..

 

Sitting Bull - That is good to know, I'll have to go look through
my Super Chevy issues and check out the articles.

Kingtal0n - It is strickly a street car, so it lives below 5500 rpm.
That is why I am looking for a setup that should bring in max power
below that rpm. I just want a nice broad, flat torque curve for
good stoplight to stoplight performance.

Thanks for all of the replies, and I will look into the other cams
suggested.

 

I think everyone is right. All of those cams will work well with a 350. The only reason I mention the advantage of the XE 256 is because you are not running your engine at 5500 rpm all the time, and you will also get better mileage with the 256. From stoplight to stoplight the XE256 will hang in there just as well, if not better.

 

I know not everyone likes to use DD2000 but it is pretty accurate with a 350 and common parts. At least for charting trends in performance

Here is a comparison of the two cams on identical engines. Nothing much to write home about for the XE 262 over the 256, is there?

 

Here are the latter two compared against the XE 268.

As we can see, the XE256 holds its own very nicely up to about 4500 rpm, with a definite lower rpm advantage. Then the other two take over.

 

i had your exact same setup, Trickflows with a performer intake, and a qjet. I was using the Crane Engergizer 272H cam, and it pulled HARD all the way up to 5000 rpm. The torque curve was rediculously flat too. According to DD2000, it hit 400 at 2300 rpms, and didn't fall back under 400 till 4500 rpms. the numbers are probably high, but the actual curve i imagine is fairly accurate.

You may wanna consider saving yourself some money and going with the 272H. Its onle 100 bucks with lifters and assembly lube. Got 28 mpg highway with 3.23 gears and a t-5 too.....

Eric

 

Just for chuckles I compared the Comp XE 262 to the Crane PowerMax 260 on identical engines. Quite a difference a 2 step milder grind like the PM 260 can make due to optimised valve opening points, eh?

I always get a nice warm feeling when I see the cam I use (the Crane 260) stacked up against the competition. The PM 260 is one terrific but often overlooked grind

 

sitting bull your valve sizes are off. they are 2.02/1.60 on the Trickflows...

Eric

 

I wasn't sure about that, thanks for letting me know. The graphs will still chart out similarly, however.

 

Thanks again for all of the info. I will be looking into all of these
grinds and see which one I like best. I wish I had a dyno in the
area, because I would like to get some before and afters.