Author Topic: 390/445 Stroker Iron Heads, Solid Cam  (Read 1376 times)

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rockhouse66

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390/445 Stroker Iron Heads, Solid Cam
« on: July 18, 2020, 09:59:42 AM »
Performance Summary:
      Cubic Inches:        445       Dyno brand:  Land & Sea Dyno Mite
      Power Adder:               Where dynoed:  Precision Machine - Sevierville, TN
      Peak Horsepower: 504 @ 5450
      Peak Torque: 563 @ 4000

Horsepower and Torque Curves:


Engine Specifications:
   Block brand, material, finished bore size, other notes:  FE 390 iron block, 4.080 bore, ARP main cap bolts, cylinder head studs
     
   Crankshaft brand, cast or forged, stroke, journal size: Scat 4.25 stroke
     
   Connecting Rods brand, material, center to center distance, end sizes, bolts: Scat H Beam 6.700

   Piston brand, material (caster, hypereutectic or forged), dish/dome volume, static CR: Mahle forged, -18cc, 9.9 SCR

   Main Bearings, Rod Bearings, Cam Bearings brand and size:  125M mains, Speed Pro 7200CJ rods

   Piston rings brand, size, other notes:  Mahle 1.0mm/1.0mm/2.0mm

   Oil Pump, pickup, and drive:  Melling HV, Milodon pickup, ARP driveshaft

   Oil pan, windage tray, oil filter adapter:  Milodon deep pan, solid style windage tray with scraper, C8 FoMoCo adapter

   Camshaft brand, type (hyd/solid, flat tappet or roller), lift and duration (adv and @.050")  Comp solid flat tappet, Lykins Motorsports custom grind 283/291 @ .015, 246/254 @ .050, 109 LSA installed at 102.  .550/.576 gross lift

   Lifters brand, type:  Ferrea LF1003  Ultra Lite Solid

   Timing chain and timing cover:  Ford Motorsport, stock FoMoCo cover

   Cylinder heads brand, material, port and chamber information:  C6AE-R ported by Les Schmader - no info provided.  Stainless CJ valves 2.02/1.65, drilled for CJ 16 bolt exhaust pattern

   Cylinder head flow in cfm at inches of lift (28" H2O pressure drop):
      Intake               Exhaust
      .100               .100
      .200               .200
      .300               .300
      .400               .400
      .500               .500
      .600               .600
      .700               .700
      .800               .800

   Flow bench used, location:

   Intake valve brand, head size, stem size:  SS 2.09 3/16 stem

   Exhaust valve brand, head size, stem size:  SS 1.65 3/16 stem
   
   Valve springs brand, part number, specs:  Crane 1.460 OD, 130# seat pressure @ 1.85 installed height, 391#/in

   Retainers and locks brand, part number, specs:  ? Supplied by Schmader

   Rocker arm brand, type (adjustable or non-adj), material, ratio  Harland Sharp aluminum roller adjustable

   Rocker shafts and stands, brand, material:  POP HD shafts, FPP end stands and spacers, studs in cylinder head

   Pushrods brand, type, length:  Smith Bros. 5/16" Heat Treated 9.00"

   Valve covers, brand, type:  Cobra Jet cast aluminum

   Distributor brand, advance curve information:  Motorcraft w/Pertonix, all in at 2400 RPM

   Harmonic balancer brand:  Stock Cobra Jet C8 A2

   Water pump brand, type (mechanical or electric):  Stock FoMoCo C9 mechanical

   Intake manifold brand, material, porting information:  Performer RPM, port matched to heads.

   Carburetor(s) brand, type  Holley 750 DP with 1" 4 hole spacer

   Exhaust manifolds or headers brand, type:  Doug's headers w/tight bends, made for '68.5 Mustang Cobra Jet.
« Last Edit: July 28, 2020, 04:50:05 PM by rockhouse66 »
Jim

rockhouse66

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Re: 390/445 Stroker Iron Heads, Solid Cam
« Reply #1 on: July 18, 2020, 10:00:29 AM »
Here are photos on the dyno and the curve (PDF file on the top line):

« Last Edit: July 18, 2020, 04:12:20 PM by rockhouse66 »
Jim

chilly460

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Re: 390/445 Stroker Iron Heads, Solid Cam
« Reply #2 on: July 20, 2020, 02:40:18 PM »
Nice streetable combo.  I ported a set of heads that I sent to Les for finish work and to have flowed and assembled, good to see that his stuff seems to work pretty well. 

rcianci

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Re: 390/445 Stroker Iron Heads, Solid Cam
« Reply #3 on: July 28, 2020, 08:26:02 AM »
PM sent.

Joe-JDC

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Re: 390/445 Stroker Iron Heads, Solid Cam
« Reply #4 on: July 28, 2020, 03:15:31 PM »
Curious why cut down CJ valves to 2.020"?  The CJ valves would fit quite well.  Joe-JDC
Joe-JDC '70GT-500

rockhouse66

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Re: 390/445 Stroker Iron Heads, Solid Cam
« Reply #5 on: July 28, 2020, 04:49:31 PM »
Curious why cut down CJ valves to 2.020"?  The CJ valves would fit quite well.  Joe-JDC

Joe - my error.  The valves were standard CJ size; 2.09/1.65.  I posted from memory and that is always dangerous.  I edited my original build summary.  Thanks for the question!
Jim

6667fan

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Re: 390/445 Stroker Iron Heads, Solid Cam
« Reply #6 on: July 29, 2020, 09:36:28 AM »
Looks like very nice reliable power.
How ‘bout a pic of the machine it is going in?

JB
JB


67 Fairlane 500 482 cid 636/619. Tunnel Wedge, Survival CNC heads, Lykins Custom Hydraulic Roller, face plated David Kee all aluminum TL, Eaton Detroit True-Trac 4.57 9 inch
11.8 @122mph

wcbrowning

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Re: 390/445 Stroker Iron Heads, Solid Cam
« Reply #7 on: July 29, 2020, 01:09:22 PM »
This engine is currently for sale in the classified section, so probably no project car pictures to be had.


Looks like very nice reliable power.
How ‘bout a pic of the machine it is going in?

JB

rockhouse66

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Re: 390/445 Stroker Iron Heads, Solid Cam
« Reply #8 on: July 29, 2020, 01:48:52 PM »
Looks like very nice reliable power.
How ‘bout a pic of the machine it is going in?

JB

Correct.  No suitable vehicle to put it in.  This is the engine I SHOULD have built for the '69 Torino GT I used to have.  Instead of fretting over date codes and engineering numbers which ran the $$$ up but not the performance.
Jim