thanks everyone,UPDATE
the block is now rough bored to .060 and still trying to decide between flat tops and dished pistons for this build. looking hard at the weiand action plus intake and a voodoo cam Advertised Duration (Int/Exh): 262/268
Duration @ .050 (Int/Exh): 220/226
Gross Valve Lift (Int/Exh): .475/.494
LSA/ICL: 112/108
Valve Lash (Int/Exh): Hyd/Hyd
RPM Range: 1400-5800

any ideas for the piston choice as the heads have a 80cc combustion chamber.
also what is the best way to stop a 833 four speed from leaking around the tail shaft??


thanks Moparts!!!!

As far as the last question. Make sure the mating surfaces are really clean and use a NEW gasket. An old oil soaked gasket will act like a wick and the oil will seep through. I am assuming you are talking where the tail bolts to the main case.

Jeff

If you're running exhaust manifolds, honestly, you probably can't get better than the original .528 MP solid-lifter camshaft (.502" lift after lash). AndyF did some pretty extensive testing, this camshaft was the best he found for exhaust-manifold applications. The VooDoo series wasn't available at that time, the Lunati camshaft above has less than 240* duration; you should be fine with running manifolds.

On the intake, it's tough for the low-decks. I would personally go with a Holley Street Dominator, wouldn't even consider anything else.

hi
flat tops fore sure for the pistons !

80 cc and a dished piston you are going to have a Looow compression dog !

jeff, yes we're talking about tail shaft housing and he even bought the trick gasket that brewer's sells and a local transmission shop install it when they rebuilt the trany.
Sweet5, we are running TTI coated headers, but we have the airgrabber so intake height is very important.

and I agree with the flat top pistons.

Go to United Machine, KB web site and use the compression ratio calculator to find out exactly what true mechanical compression ratio you will get with flat top pistons with valve reliefs, 80..0 CC heads and a .039 or .042 thick head gasket with a 4.40 bore size
You may need a 10 to 12 CC reverse dome, half dish piston to keep the compression under 10.5 to 1 or so for todays pump swill

so i did as you said and WOW! a flat top it going to be to much with the stealth heads. I'm looking for a CR of around 9.5-9.7. Might have to find a cam to bleed some compression off.

How do you figure

I am running the same kit , .030 over so 432 Stroker from 440 source

Running there Icon flat top pistons with 4cc valve reliefs and 75 cc Edelbrock heads I am at 10.4 compression with a .039 Fel Pro Gasket , pistons where around .020 in the hole after cleaning up the block decks . Yes my quench isn’t perfect but I already had the Edelbrock 75 cc heads prior to the rebuild

I can run 91-93 octane on the street no problems and currently at 36 degrees total timing

Your Stealth Heads are closer to 80 cc

You should bee around 10.1 compression or a little less because those Icon pistons are .025 down in the hole factory block

Are you at zero deck or did your machine shop just clean ?

383 .060 Over 438 Stroker 440 Source Icon Pistons Flat Tops

Bore size 4.310
Stroke 3.75
Rod 6.76
Comp Height 1.320
Below Deck -.025
4cc Valve reliefs

I should have mentioned to make sure and use + CC for vale reliefs or dished piston volume and - CC for dome pistons on that website
Try redoing your calculations using the same info except for adding the + and then change it to the - sign

we havent decked the block yet, but the last one of these kits i did was the same but the customer wanted to keep the stock iron exhaust manifolds on the stealth heads with a rather large cam and has a bit of over heating problem during a summer where we had many triple digits days.

also we used the flat tops zero decked the block

Does the driveshaft have a yoke with a groove worn in it?

Anybody used the Mopar performance aluminum dual plane intake pn P4529117
It has an rpm range of idle to 5800?

I have one on my 451 , Ram Charger set up. Has tremendous low end and pull to 6k rather quickly.Im shure a performer RPM would work better but will not fit the hood .

Very nice on the Weiand but it might be to tall for the airgrabber.

Sweet, that’s what I wanted to hear, now I just have to find one.
Anybody? P4529117 intake for sale, I will post up in the right area.

What heads are you running on your 451?

Eddy RPM OOTB