600sci cam good for a 502 carbureted
 

Hi guys
What are the cam spec on a 600sci ? I have a couple laying around and would it be good for a carbureted engine , we want to produce around 600 hp.
We have Brodex heads 121cc and 320, 502 with a 60 over piston with a .125 dome ,strip dominator intake and a 850 Holley.
Any help will be appreciated .
Joe

not w/ that cam,,its tiny and week,be nice in a truck motor.heres what I found searching,and Dustin Whipple ansered you.:D

the cam specs

Duration 212/226
Lift .542/.587
LC 117.5

Ya I think they used them in the 575 as well and a few others. Decent blower cam however not what your looking for. What do you plan on ending up with for compression? Also ported or stock?

forced induction wants a very different cam profile than NA. much tamer. if you have any kind of overlap, you are just blowing it out the exh valves before they close...

Than NA street or race car. Obviously don't want any 104-108LSA's on a SC, but you won't be using that on a marine I/O wet exhaust nor without a crash box.

Your statement has a tiny bit of truth too it, but by how it reads not much.

no way,,only difference and its small would be the overlap and even that can be close to the same.case in point,hp500efi cam is the same as the 700sci

Kinda like the 525 sc is 454 420 hp cam if I'm not mistaking. I get what dnk is saying though.

So since Im using a hp500efi cam on my na build, I could eventually slap on a blower and be rockin!!!!

The 575 was a flat tappet cam that would make about 400 hp in na form, not mercs best work

I think he was referencing optimal or ideal. Using Mercs stock cam choice as a reference doesn't mean it's right. They have a history of using what is already in their possession, and utilizing certain cams to keep HP down in order to place the engine in a market segment. The 700 sci can easily become a 800+ hp reliable monster with cam and boost changes.

Bingo.

Wow, that 600sci cam is pretty lame if those specs are correct.

You will find that not all supercharger cams are ground on the same principles. While yes, wide lobe separations are popular, usually the best choice for most marine supercharged setups, their are circumstances were LSA's of 110 may be chosen, and make more power. Thats usually when the compressor can afford to throw away a little bit of boost. Its not what you'd want for a marine deal with a little 177/250 blower, or with wet exhaust. Also, is there something to a little extra overlap with high boost, to help blow a little fresh air across the exhaust valve to help aid in ex valve cooling?

Besides overlap, generally, you also want an exhaust lobe that stays open for a longer duration. You are packing a substantially larger amount of air in the cylinder with forced induction, and it needs some extra time to get out, to help evacuate the cylinder.

There are certain cams that worked great in N/A as well as supercharged. The 525EFI cam, crane 741 cam, etc.

Easy 700hp if you keep comp under or round 9-1

If I read it correctly , 700sci and the 500 efi are the same cams? What kind of hp would I have to go na with the 700sci cam?
Oh I'm running dry exhaust.
What to,you guy think the right cams is to get 600 na?

Why not just buy a cam for your application?

In a nutshell yes.

If it takes that I will , I have a couple 600 and 1-700 sci cams laying around , I want to use them if I can.
It's my sons boat and I'm trying to get it done for the least amount of money.

What kind of power ?

Got it, thought you were going to go looking for the cams

IMO, the the 600sci and 700sci cams , are too light for a 516ci, brodix headed deal. Keep in mind max rpm on a 500EFI, was 5200ish.

The 600sci, 575sci, 700sci, were great engines and all, but certainly not dishing out big power numbers. 600hp from a blown 502 is actually kind of embarrassing.

You got 516 cubes, you got brodix heads , you got dry exhaust. Give them a cam they deserve .

okay , I will shop for a cam, any ideas with what you mentioned?

I"m not a cam expert, I have always left that up to everyday professionals. I would call Bob @ Marine Kinetics. If you call him; have your head part# along with flow #s, compression ratio, exhaust type, and rpm window.

What is the LSA number for this cam?

600sci
the numbers are hard to see at the back 842264
stamped on the lobes 1029 011627

600sci
 

[ATTACH=CONFIG]539998[/ATTACH]

Oh, I thought you meant the cam #

Cam
 

Sounds like i t would be good in mild 502 single 4 cmi e x in a single e ngine 30 ft boat