Yes, but if used with a stock pan and spinning near 7G's can suck the pan dry. The better route is to go with the stock pump or M55 and swap in a GM white spring to add just a little more pressure.

Well, I mentioned this because of the casting change of the M55x units and their habit of breaking during high performance use. They even come with a disclaimer. The "Melling Select" is Melling's high peformance line.

I went with a Milodon pump because of all of this BS. Melling may have redesigned the pumps in the past year or so but I didn't want to risk it.

Yep - the LT1 crowd is familiar with the M155 disclaimer (although a rep at Melling told me they have fixed the issue but I find that hard to believe). Whenever I recommend a build I ALWAYS suggest the 10552 or 10554 select pumps. I'm using a 10552 on my 383.

Milodon also makes good pumps.

Yeah, my only bitch about mine is that their "press fit" pickup didn't even come close to fitting properly.

Sorry for the derail to the OP...

Getting back on track. So if you have the 503 in the car and are looking for 11s, why not leave the cam and do heads or something else. Going with a bigger cam probably isn't going to give you the gaims now that better flowing heads would.

I dont have a cc503 in the car I have a roller nd and 93 block and some 94 heads with comp cam springs and a ported throttle body and a nice holley tb but no cam...

also everyone tries to run heads cam i'm looking for something different

cam only isnt really "different"

True story.

we aren't talking stock ls heads either that flow over 300 cfm stock....

So heads/cam/stall/boost. 8-)

yes, twin turbo with nos 2Jz swap

No.

But really, there is not much that has not been done, the only thing that I can think of that would be quite original would be to retrofit a roots blower to fit under the hood. Its been done a few times, all custom one offs.

That would be more impressive than a tin fished cam only car IMO.

Or, not to popular yet, would be the EFI24X LS1 PCM conversion.

lmao i thought about it but ill have to build the bottom end for it. And I rarely see many lt1 guys run cam only setups w/ out heads that can run decent times.

http://www.herronperformance.com/ass...2HPwheelup.jpg
http://www.herronperformance.com/html/shop_car.html

More impressive to go fast with a full interior IMO.

Just doing a cam, is well... very LS1 like.... :wink:

reason being the heads don't flow enough and/or !driveability/reliability with the big ass cam. its your car, really just don't wanna see you disappointed with it. having the stock heads ported really helps a lot.

And this doesn't scream to you, that its not a good route to go down?

:lol::lol:

Oh it screams great idea , Its says dont bother getting headers when its only a few hundred more to run reverse turbo headers and a turbo in front. I mean i do have the room with my fancy radiator and all.....

But it also screams and your total is :shock:

Front mount turbo is not original either.

Since you have no motor, throw a rotary in there. That would be original.

In all seriousness though, why not just get a set of ported heads and just go for a fast car?

because I'm going for a fast car on stock heads, just to prove that it can be achieved.....

If you wanna beat your head on teh wall, so be it.

Good luck.

hey your the one barely in the 12s on a h/c and shot.....

That is neither here nor there, all I am saying is that a cam only setup for max results will result in crappy daily driving and put a stock shortblock in the fire...

here, http://www.malcams.com/legacy/misc/headflow.htm
this should help enlighten you to what we are trying to say. figure le2's advertise about 275 intake 190 exhaust flow. then see that most guys run low 12's to mid 11's. average that out to high 11's and then you see what we mean. stock untouched lt1 heads simply don't flow enough. it is possible to get a cam only lt1 into the 11's but its going to be a crap show on the street IMO. whatever you do, keep us up to speed 8-)

you can't count him :lol: jerzlt1 is 11.5ish IIRC on the same top end setup. engine performance really shows in the trap speed though, not et

to put this in simplest terms for you and im no expert but just learning while i was building my car... your heads will only flow as much as possible... so if you want to do a true cam only car... your best bet would be to pull the heads and get them flow tested to see what they are capable of... and then you can spec you cam to that... if your heads dont flow **** past 490 lift (probably what stockers are like) and your cam is pushing 550+ lift (306 cams and 847 cams) your just shooting your self in the foot and your going end up loosing power that way.... then while the heads are off you can do a valve job and springs also... but thats what i would say if your dead set on this stock heads junk... thats the only real way your going to get the best possible set up in my eyes... as said above keeps us posted...