First look at the Stealth heads

[Chryco Psycho]

absolutly looks can be decieving
Thanks for the info

[hemiken]

I will post more as time goes, planning on buying some pistons before i port the heads these will be awesome............ putting them on a 472 - 440 wedge.

[hemiken]

Is that flow at 28"?? Or the old 10"?

Hi Roppa,

The flow figures were all tested 28" buddy

[airfueleddie]

It will be interesting to see, when I throw my 440 source heads on our bench, if it flows the same amount. Thanks for posting the results.

[ViperMan]

That is some awesome information, Ken - I'm sure a LOT of people would like to see that chart.  Thanks so much.

Jeff

[71chally416]

Very decent flow figures for an untouched inexpensive head. Looks like they might now be the head of choice for most BB builds.

With the big port Commando heads being capable of exceeding those BB head figures by 50/60 cfm on both Intake and exhaust in ported condition (with much smaller valves) you can see why I always extol their virtues for being a factory SB head.

It's good times for Mopar guys, whatever you have.

[hemiken]

Very decent flow figures for an untouched inexpensive head. Looks like they might now be the head of choice for most BB builds.

With the big port Commando heads being capable of exceeding those BB head figures by 50/60 cfm on both Intake and exhaust in ported condition (with much smaller valves) you can see why I always extol their virtues for being a factory SB head.

It's good times for Mopar guys, whatever you have.

I agree and things are only getting better by the looks

[hemiken]

It will be interesting to see, when I throw my 440 source heads on our bench, if it flows the same amount. Thanks for posting the results.

When do you plan on having your heads on the bench please.  My guys flowed these heads in the corner of a workshop where there flow bench is set up and not in a controlled air condition room.  Looking forward to your post.

[71chally416]

The Website claims 290cfm @ .600" & 220cfm on the exhaust (@ 28")which is more in line with what I would expect for 2.14" & 1.81" valves, but the more that test them the better.

[hemiken]

The Website claims 290cfm @ .600" & 220cfm on the exhaust (@ 28")which is more in line with what I would expect for 2.14" & 1.81" valves, but the more that test them the better.

I bet they were in a controlled air conditioned enviroment when the flowed them, this would of bumped up the numbers for sure.

[6packCuda]

I know another guy who tested some Stealths on a SuperFlow 600 Bench at 28" with portflow analyzer 3.0 software. His results were as follows...

.600 lift, out of the box heads....................     Intake- 254.4 cfm
                                                                 Exhaust-198.3 cfm

.600 lift, with bowl blending and mild port work...Intake - 282.5 cfm
                                                                 Exhaust- 223.7 cfm

[black71]

sorry a newbie ?....but what are an approx number for 906's ported and unported..i realize there are big variances here just  curious of a ballpark figure

[71chally416]

There's a good article showing the different stock heads here>

http://www.moparmusclemagazine.com/techarticles/5115_cylinder_heads/index.html

It'll cost you way more to rebuild and port a set of old heads than you can buy the Stealth heads for, so why would you?   

[hemiken]

There's a good article showing the different stock heads here>

http://www.moparmusclemagazine.com/techarticles/5115_cylinder_heads/index.html

It'll cost you way more to rebuild and port a set of old heads than you can buy the Stealth heads for, so why would you?   

I have to agree here again.............. my buddy who flow the heads said that he was bummed because he has spent money on Stage 6 heads and wish he had seen the stealth first

[black71]

thanks for the article i was curious... i do believe i will run the stealths, like you said why put the money into my irons