Lykins Motorsports 427 S/O, LR 2x4

[blykins]

Performance Summary:
      Cubic Inches:   429       Dyno brand:  Stuska
      Power Adder:   N/A        Where dynoed:  Dale Meers Racing Engines, Buffalo, KY
      Peak Horsepower:  510
      Peak Torque:  511

Horsepower and Torque Curves:


Engine Specifications:
   Block brand, material, finished bore size, other notes:  Factory 427 S/O.  4.250" bore
     
   Crankshaft brand, cast or forged, stroke, journal size:  Factory $ crankshaft, stock stroke, 2.750"/2.200"
     
   Connecting Rods brand, material, center to center distance, end sizes, bolts:  Oliver, 6.800"

   Piston brand, material (caster, hypereutectic or forged), dish/dome volume, static CR:  Racetec, 11.5:1, 4cc Dome, .043/.043/3mm

   Main Bearings, Rod Bearings, Cam Bearings brand and size:  King main/rod, FM cam

   Piston rings brand, size, other notes:  JE

   Oil Pump, pickup, and drive:  Precision Oil Pumps Melling HV

   Oil pan, windage tray, oil filter adapter:  Moroso Road Race

   Camshaft brand, type (hyd/solid, flat tappet or roller), lift and duration (adv and @.050"):  Custom Bullet solid flat tappet, 255/263 @ .050", .640" gross lift, 106/104

   Lifters brand, type:  Crower SBF EDM

   Timing chain and timing cover:  Ford Racing/factory

   Cylinder heads brand, material, port and chamber information:  Lawes Mayfield ported C3 LR

   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:  Ferrea hollow stem, 2.150" x 3/8

   Exhaust valve brand, head size, stem size:  Ferrea hollow stem, 1.750" x 3/8
   
   Valve springs brand, part number, specs:  PAC 1294, 160/425

   Retainers and locks brand, part number, specs:  Comp 741, Comp 609

   Rocker arm brand, type (adjustable or non-adj), material, ratio:  POP factory-ish adjustable

   Rocker shafts and stands, brand, material:  POP

   Pushrods brand, type, length:  Trend, 5/16" .105",

   Valve covers, brand, type:  Custom Lykins Motorsports

   Distributor brand, advance curve information:  Mallory dual point

   Harmonic balancer brand:  Romac

   Water pump brand, type (mechanical or electric):  Edelbrock

   Intake manifold brand, material, porting information:  Lawes Mayfield ported C3 2x4

   Carburetor(s) brand, type:  Quick Fuel

   Exhaust manifolds or headers brand, type: 2" headers

[cjshaker]

Interesting comparison to my MR 427.

One full point of compression more, very similar cam duration but with .080 more lift. Ported Low Riser heads vs. my stock Medium Riser heads.

+14hp and +27tq with a little more lift and compression compared to mine. Pretty much as you would expect.

[blykins]

If I recall correctly, this one carried the 510 hp all the way to 6500, which is what I was wanting since it's for an FIA road race Galaxie.  Rules dictated a lot of parts we had to use.

I think the heads came out at around 270-280 cfm.