Hey guys - just wanted to vent my excitement for the long anticipated dyno day tomorrow. I havn't had a running car for almost 2 years, so I'm really looking forward to gettin it on in the dyno room! Here's the combo and please post your guesses on the final outcome. You may want to wear your chinese parts glasses for this one!

440, +.030, 440 source 4.25 crank, h beam rods and 17cc dish pistons, 10.5-1 measured compression, stealth heads CNC'd at modern cylinder head, Comp solid flat tappet spec'd by Dwayne Porter 262/267 @ .050 .585/.602 lift w/1.5, 112 lsa, crane golds, isky springs, comp retainers and keepers, smith bros pushrods, Cloyes timing set, Holley SD intake, Quickfuel 950 annular carb, 1/2 pickup, melling hv pump and mopar 7 qt pan

The engine shop has a set of 2 1/4 headers for the dyno, but I will have 2" in the car.

I hope to have some results tomorrow night

Can't wait to see results - where are you having this done?

Ken

Tony, this motor ought to rock! Looks to me like the most blast for the $$, what did Dwayne think it would make for power?

Congrats Tony! Too cool! I'd guess around 625 hp 590 tq

This build is very close to the motor I'm getting ready to build. I'm extremely interested in what it makes.

Please keep us posted!!

Also, if you don't mind- What were your goals and plans with the car/engine? And why did you decide to go to a solid flat tappet instead of a solid roller cam?

I'm thinking a lot more than 625 hp,,,,,,,,,,,

Tony,Good luck with the dyno day...I am sure you will be happy. I am gonna take a WAG and say 704/650..Looking forward to the results.

This is also what i'm looking to build, i've got edelbrocks done by modern but milled .050 and i'm looking at a roller in at 108.
Do you get 10.5.1 with 84cc heads.
Mick

Greg - Dwayne didn't say. He actually recommended something a little bigger for max performance, but I talked him down in exchange for some better street manners!

Mopwers - My goals and plans...well its a 72 Challenger all steel full interior street car with 4.10's, 295/65 drag radials, 3" exhaust, and 9 1/2" converter. I'm hoping for upper 10's, but I won't be legal anyhow (no cage). I need to make a decision on that one...As for why I chose solid Flat tappet vs solid roller. Mainly cost.

Al - If this thing makes 700hp I will flip! Thanks for the positive vibes, man.

Deaks - I get 10.5 w/82cc chambers. Pistons are a couple in the hole and gasket is .040

Guy I know stealth head setup but with more cubes and it made 610....

Early 70's 440 block (unsure of year) prepped for overhaul/rebuild.
440 source 543 balanced stroker kit:
(.055 over) 4.375" bore 4.500" stroke
Forged flat-top 2618 T-6 aluminum billet pistons.
4340 forged steel crankshaft
4340 steel rods, full floating .990" pins
Clevite bearings
Childs & Albert ductile iron plasma-moly file fit rings
440 source Stealth aluminum heads with full port job; 2.14/1.81" valves, 84 cc chamber size.
Comp Cams (#953-16) valve springs Open: 456 @ 1.250"
Spring Rate: 473 in/lb
Coil Bind: 1.085
Cam Motion custom ground hydraulic roller cam:
Lift: .540/.527
Duration: 240/245 @ .050
Lobe separation 110.2
Comp Cams: push rods, 10 degree super locks & retainers.
Compression at 11.04:1
Hughes Engines 1.5 ratio cnc'd aluminum roller rockers, cryogenically treated.
Hyd roller lifters.
Milodon External oiling system with Melling HV oil pump.
440 Source 7 qt. aluminum oil pan
440 Source windage tray
Carter HV mech fuel pump.
SFI certified Chrome fluid damper
Billet double roller timing chain
Edelbrock Performer RPM aluminum intake manifold
Pro Systems 1000 cfm carburetor, mechanical secondaries.
Doug's (#D452) ceramic coated full headers. 2" primaries, 3.5" collectors.


Well I took the 543 stroker to the engine dyno for a break-in and tune. It was awesome and I am still grinning! The results were quite good. I have about 8 pages of test results, but the bottom line is: 610 horsepower @ 5400 RPM with 651 ft/lbs of hole stompin' torque!

You're gonna love that motor....that's almost dead-on my old 508 combo except I ran a very similar net spec (allowing 10 degrees for lash) 252/258 @.050 Hydraulic roller with dead similar lift and split. Same intake but you're probably packing a bit better head flow above .500 than my old stage V's.

Did Dwayne port the SD intake? There's some power upstairs there, I'm sure Dwayne knows all the tricks, they're about the easiest BB intake to open up and the long stroke likes the short runners and a big carb.

It's on the dyno and was getting all hooked up

Yeah Paul PHJ426 bought the 508 and the heads that Chuck at Best Machine didfor me (see the tech Archives), but last I talked to him he bought a Primo Black 70 440 Cuda so I think he back-burnered the Road Runner Stroker project.

Well when you get her running just get a hold of me and you can borrow my old ported SD,...the runners are around 3.25 sq in (about 15% bigger than the standard 906 window) so it's really too big to work with a standard Valley pan port, You'd have to cut the Gaskets special and seal the valley. I bet I could have pretty much filled a super big gulp cup with all the aluminum that came out of that thing.

I'm trying to remember, your other motor was a low deck 4.25 crank, right? the one with the Stage VI's and the Indy dual-plane?

btw....your 512 I think (if it's .030 over) is "only" a 505

Good luck Tony!!

Here's hoping for some good numbers Tony!

Wondered what you had been up to lately Tony, guess that answers THAT question!

Whatever the numbers, it's gonna honk, should be interesting to see the results.