Big Block 400 Stroker Build!!

[PlumCraZRT]

*BUMP!*

Engine is done being built and I just watched it run on the dyno... Impressive.
Vid of it starting:

http://youtu.be/Eroy9qk5vUs

From the beginning the engine was supposed to be a sleeper... it should look like the stock 383 it's replacing.  Clearly it's not.

I would like to give a recap of the whole engine.  I'm going through receipts and invoices, but I probably won't remember it all.  Here we go:

Machine work done by Mopar Engines West (MEW), Newark, CA:
Hot tank
Shotpeen block to remove rust
Tap and install ARP main studs
Line hone mains
Square deck (left .015" above pistons)
Bore and hone (+.035")
Balance rotating assembly
Blue printed engine

Piece-parts and components:
440-Source 451 stroker kit installed in a 400 block
ARP head bolts (not studs)
440-Source Stealth aluminum heads (with bowl blend, valve job)
Viton valve stem seals
Ferrea stainless valves; intake and exhaust
Comp Cams (double) springs, 10 deg retainers & locks, spring pads
Comp Cams EDM solid flat tappet lifters
Weiand Action+ 8008 intake manifold (clearly a bit restrictive, but good for stock/sleeper look)
Billet torrington bearing & double roller timing chain
440-Source oil pan and pickup (needed modifcation for correct fit)
Crane Gold Series 1.5:1 roller rockers
Holley Street Avenger 850-cfm carburetor (82 jets all around, vac secondary, elec choke)
440-Source SFI-certified fluid damper
Cometic head gasket
Smith Bros custom pushrods
Mancini Racing aluminum hi-volume water pump
440-Source aluminum water pump housing
Mancini "restoration" steel timing cover
Melling hi-pressure oil pump
Taylor "Street Thunder" spark plug wires ("custom length" needs to get fixed... too long)
Proform electronic distributor (needs reduction in advance curve... need 20 deg advance; 14deg-to-35deg)

Comp Custom Cam (originally designed for EFI w/ power brakes):
                                Int   Exh
Valve adjust:        .018   .018
Gross Valve Lift:    .531   .540
Valve timing (@ .050)
Open:                   14   61
Close:                   54   13
Dur @ .020:         277   284
Dur @ .050:         248   254
Lobe Lift:            .354   .360
Lobe Sep:   112
Standard Firing Order

Did dyno pull from 3,400 to 6,000 RPM (dyno sheet to come):
Peak Power: 495 hp (@5800 rpm)
Peak Torque: 530 ft-lbs (@3400 rpm)
Video:

http://youtu.be/pwTlFhkPqug

Fantastic motor!  Thanks to Angie and Dave at MEW!

[Chryco Psycho]

Sweet , Glad you are happy with it 

[Chryco Psycho]

SO you have relatively mild combo & you beat 500 HP & 500 Ft Lbs even with a stealthy intake !!
 I bet the power curves are relatively flat too , , probably over 400 ft lbs from 2200 - 5200 range

[PlumCraZRT]

SO you have relatively mild combo & you beat 500 HP & 500 Ft Lbs even with a stealthy intake !!
 I bet the power curves are relatively flat too , , probably over 400 ft lbs from 2200 - 5200 range

Just added a dyno sheet to the "summary" post I did earlier.  Have over 500 ft-lbs till 4,350 RPM and over 400 ft-lbs past 6,000 RPM.  Pretty flat torque curve.   

Thanks again for the help Chryco!

[mopar12372]

just think if you put a single plane manifold , thats great power !! im jealouse

[Topcat]

*BUMP!*

Engine is done being built and I just watched it run on the dyno... Impressive.
Vid of it starting:
Fantastic motor!  Thanks to Angie and Dave at MEW!

Sounds great. Good numbers!

I had them build my engine also.
Dave and Angie are good folks. Highly recommend them if you can handle their L/T.
They have alot of engines building there.

They'll be dyno'ing my engine when I'm ready.