383>>438 with dyno results

[Windsor]

Having issues getting pictures to load, give me a bit.
Please don't ream me for too much or too little info. If you have any questions about parts that I forget, I'll answer anything I know and find out what I don't.
I am including a copy of my invoice so you can see what was done.
Sweep 9: 477HP @5200rpm, 506TQ @4300rpm
Sweep 10: 471HP @5200rpm, 509TQ @4200rpm
Compression: 9.5
Timing: 36*

Block:
1968 383 bored +.030 w/ torque plates, deck surfaced. ARP main studs.

Rotating assembly:
440 source 383>>438 balanced & polished by builder.
Stroke- 3.750"
Rods- 6.760"
Pistons- 4.280" (.030" over) -4cc "flat top".
Rings- Total Seal moly file fit rings.
Bearings- Clevite Chamfered "B" engine main bearings.

Heads:
Edelbrock Performer RPM #60929
Combustion chamber- 84cc
Intake runner- 210cc     Exhaust runner- 70cc
Intake valve- 2.140"      Exhaust valve- 1.810"
Springs- Single 1.550"
Intake side of heads surface .035" to adjust for block deck surfacing.

Cam/valve train:
Lunati 10230703LK (cam card in pictures).
Grind# VDBCR-271 hydraulic flat tappet.
Lobe separation- 110
Duration- Intake Adv 271, @.050" 226. Exhaust Adv 279, @.050" 234
  Rocker arms- Crane 64770-16 ductile iron.
  Rocker arm shafts- Mancini MRE715.
  Push rods- Smith Bros 3/8x.049" 4130 with 5/32 cup & 5/32 ball.
  Hold downs- Hughes hd billet steel.
  Timing chain set- Comp 2109.
  Timing set cover- 440 source #121-1062 w/ 121-1063 pointer
  Valve covers- 440 source #200-1120 with custom welded baffles, filler, and PCV installed.
 
Intake:
Edelbrock Performer RPM 7186

Carb:
Edelbrock #1813 AVS 800

Oiling/oil control:
Pump- Melling M-63HV with stock spring shimmed.
Pan- Milodon 30891 rear sump.
Windage tray- Summit G2339.
Pickup- Milodon 18457.
Dipstick- Milodon 22040.
Rear seal retainer- Mancini billet (x2 since motor would not stop leaking with the first one).
Rear seal- Fel-Pro 2947.
Intermediate shaft- 440 source 200-1078 w/101-1001 bushing.

Ign:
Distributor- Firecore R2R
Wires- MSD (builders)
Coil- MSD (builders)
Plugs- Champion RC12YC

[Windsor]

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[Windsor]

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[Windsor]

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[Dreamcar]

The pictures are not showing up

[Windsor]

Sonofa. DC doesn't like me adding pictùes. I'll try again.

[Dreamcar]

Headers?

[Windsor]

2" primary x 32" Stahl dyno headers.

[Dreamcar]

How much less power do you think stock heads would make?

[Windsor]

Not sure. Can one of the gurus of estimations chime in on that one?

[Troy]

Pics

[Troy]

Pics 2

[Windsor]

Thanks Troy. I don't know what the issue is, they all show for me. Are they clear enough, or should I try rescanning them?

[BSB67]

Very nice.  Thanks for posting.

[Troy]

Thanks Troy. I don't know what the issue is, they all show for me. Are they clear enough, or should I try rescanning them?

I think the issue is hotlinking from someone else's web site. If you try to view the image from somewhere other than their site they won't show. It keeps people from "stealing bandwidth". However, if you have already visited their site the images are cached in your browser so it happily displays them here.

I think they are hard to read. They are pretty small. I could blow them up but I doubt it will help so it would be better to rescan them at a higher resolution (if you want to).

Troy

[Windsor]

Thanks Troy. The issue I was having was when I tried to load them it kept popping up saying I had already done it and maybe had double clicked or tried to refresh. I'll delete what I already posted and scan them again to try to get a better image loaded.

[Windsor]

Sonic test.

[Windsor]

Invoice, edited.

[Windsor]

Cam card

[Windsor]

Dyno

[Windsor]

Page2

[Windsor]

Page 3

[Windsor]

Page 4

[Windsor]

Page 6 (5 is a blank page)

[Windsor]

Well folks, that is the best I can get it with my limited knowledge of computers/scanners. I hope it is good enough to read. If not, I may end up just typing it all out...

[firefighter3931]

Nice job on the engine ! 

The scans are fine.....I can read them no problem ! 

Nice flat torque curve ! 

What size headers do you plan to run with this engine ?  The 2in primary tube is a bit big for this build. A 17/8 long tube header would make more torque and produce the same horsepower. When we dyno'd my old 446 the 17/8 in hookers made 20ftlbs more across the entire test range (vs the 2in TTI's) yet the HP was the same. This was on a 535hp/540tq build so on something a bit milder the same results would/should be expected. The smaller tube will make it snappier and increase throttle response 


Ron

[Windsor]

I'm still trying to figure out the headers. I'd like to use long tube, but not sure what will work. Schumacher has (out of stock) 1 3/4" headers for the Dakota chassis that I'll be using.
Edit: Schumacher mounts are out. He sent me some pictures and they push the motor too far forward. He said he is unsure of the header fit with Edelbrocks since they haven't tried them.

[Troy]

Much better. Except I don't know what any of it means...

Troy

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