Lykins Motorsports 511 Tunnel Port, 723 hp, 657 tq

[blykins]

Performance Summary:
      Cubic Inches:   511            Dyno brand:  Stuska
      Power Adder:               Where dynoed:   Dale Meers Racing Engines
      Peak Horsepower:  723 @ 7000
      Peak Torque:  657 @ 4500

Horsepower and Torque Curves:


Engine Specifications:
   Block brand, material, finished bore size, other notes:  Pond cast iron, 4.375"
     
   Crankshaft brand, cast or forged, stroke, journal size:  Scat steel, 4.250" stroke, 2.200" rod journal
     
   Connecting Rods brand, material, center to center distance, end sizes, bolts:  Lunati H-beam, 6.800", ARP 2000

   Piston brand, material (caster, hypereutectic or forged), dish/dome volume, static CR:  Racetec, 2618, coated, 11.8:1

   Main Bearings, Rod Bearings, Cam Bearings brand and size:  Federal Mogul, Federal Mogul, Durabond HP

   Piston rings brand, size, other notes:  Total Seal, .043/.043/3mm, low tension for vac pump

   Oil Pump, pickup, and drive:  Melling HV, Moroso pickup, ARP drive

   Oil pan, windage tray, oil filter adapter:  Moroso road race T-sump, no tray, POP billet adapter

   Camshaft brand, type (hyd/solid, flat tappet or roller), lift and duration (adv and @.050"):  Custom Comp Cams solid flat tappet, nitrided, 270/280 @ .050", 108 LSA, 108 ICL, .650/.650 gross lift

   Lifters brand, type:  Crower Coolface SBF EDM

   Timing chain and timing cover:  Ford Racing/factory

   Cylinder heads brand, material, port and chamber information:  Custom ported Ford Tunnel Port

   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, 2.250"

   Exhaust valve brand, head size, stem size:  Ferrea 1.76
   
   Valve springs brand, part number, specs:  PAC 1255X, beehive

   Retainers and locks brand, part number, specs:  PAC titanium

   Rocker arm brand, type (adjustable or non-adj), material, ratio:  T&D street

   Rocker shafts and stands, brand, material:

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

   Valve covers, brand, type:  Holman Moody

   Distributor brand, advance curve information:  MSD, all in by 2500
 
   Harmonic balancer brand:  Powerbond SS

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

   Intake manifold brand, material, porting information:  Factory Tunnel Port

   Carburetor(s) brand, type:  (2) QFT 725cfm carbs

   Exhaust manifolds or headers brand, type:  Dyno headers, 2" tube

[blykins]

https://www.youtube.com/watch?v=hO6MLv2ebu8

[fekbmax]

Nice work..
is that a GZ vac pump. ? How about the mounting bracket, is that a custom made piece ? Need to fab up a mount for my setup or modify one to work.

[blykins]

Everything is GZ.  One of the best setups out there, IMO.  Comes with crank mandrel, mounting brackets, all hardware.  It would have come with the fittings and hoses, but I wanted to make my own hoses to match the engine.  Even comes with a little puke tank.

[fekbmax]

Very nice setup. Great build. Thanks for sharing. 

[jayb]

Nice job on that one, Brent, that is outstanding power for a flat tappet cam.  Also +1 on the GZ Motorsports stuff; I have run those pumps on my engines in the past with excellent results.

[blykins]

I was very pleased with it. 

I realize that we were probably down 20-25 hp to a solid roller setup, but I just felt more comfortable going this way.  Used a Comp XTX intake lobe and a High Torque exhaust lobe.  No signs of valve float, even at a little past 7000 rpm.  Everything was very light, from the hollow stem Ferreas, to the PAC titanium beehive retainers that feel like feathers in your hand. 

When I do solid rollers for street applications, I'll use the bushed Crowers/Iskys/Morels, and when you're looking at $1000 for just the lifters, the solid flatties seem like a sound alternative. 

[427HISS]

Nice.

Apx how much would this motor cost ?

[blykins]

Probably in the $18-20k range, depending on the going rate for Tunnel Port heads, intakes, and how much work they need before they are usable.