Performance Summary:
      Cubic Inches:  431       Dyno brand:  Stuska
      Power Adder:               Where dynoed:  Dale Meers Racing Engines
      Peak Horsepower:  422 @ 5500
      Peak Torque:  488  @ 3000

Horsepower and Torque Curves:  Yes, they were curved.


Engine Specifications:
   Block brand, material, finished bore size, other notes:  Factory 428, 4.150".  Square decked to 10.160", align honed with ARP main studs/bolts. 
     
   Crankshaft brand, cast or forged, stroke, journal size:  Factory 428, ground .010"/.010"
     
   Connecting Rods brand, material, center to center distance, end sizes, bolts:  Fomoco C7AE-B, 6.490", ARP 13/32" bolts.

   Piston brand, material (caster, hypereutectic or forged), dish/dome volume, static CR:  Custom Racetec, 4032, 1.670", 11cc, 1.5/1.5/3mm, 9.7:1

   Main Bearings, Rod Bearings, Cam Bearings brand and size:  Federal Mogul 125M10, King CR809-010, Durabond F-33

   Piston rings brand, size, other notes:  Hastings, 1.5/1.5/3mm, standard tension

   Oil Pump, pickup, and drive:  Melling M57, factory style pickup, Melling drive

   Oil pan, windage tray, oil filter adapter:  Scott Drake CJ repop, no windage tray, factory Ford oil filter adapter

   Camshaft brand, type (hyd/solid, flat tappet or roller), lift and duration (adv and @.050"):  Custom Lykins Motorsports hydraulic flat tappet, 227/229 @ .050",
       276/283 advertised, 110 LSA, 103.5 ICL, .532"/.541"

   Lifters brand, type:  Crower cam saver lifters

   Timing chain and timing cover:  Ford Racing cast iron double roller, factory timing cover

   Cylinder heads brand, material, port and chamber information:  Factory C8OE, SI 3/8" valves, no port work, 78.8-79cc chambers

   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:  SI, 2.09", 3/8"

   Exhaust valve brand, head size, stem size:  SI, 1.65", 3/8"
   
   Valve springs brand, part number, specs:  Comp Cams 972, set up at 1.800".  115/280 spring pressure

   Retainers and locks brand, part number, specs:  Comp 740, Comp 612

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

   Rocker shafts and stands, brand, material:

   Pushrods brand, type, length:  Trend, 5/16" ball on lifter end, 3/8" ball on rocker arm end, 9.500"

   Valve covers, brand, type:  El-cheapo chrome ones for dyno

   Distributor brand, advance curve information:  Dyno'd with MSD, 36° total, all-in by 2500

   Harmonic balancer brand:  Dorman street

   Water pump brand, type (mechanical or electric):  Driven by electric motor

   Intake manifold brand, material, porting information:  Fomoco PI intake, no port work

   Carburetor(s) brand, type:  Holley 750 mechanical secondary, dyno carb

   Exhaust manifolds or headers brand, type:  Dyno headers

I've had my heads here for the past few weeks but haven't had a time to really mess with them.  The day they came in I poured a chamber and an intake port.  They measured 69.8cc and 169.8cc respectively.  Poured the chamber with an Autolite 3924 plug.

Had them on an SF600 today with a Brzezinski 1206G entry plate with a little clay to transition it.  4.155" bore.  Exhaust was flowed with no pipe.

.1  96  66
.2  159  120
.3  233  164
.4  283  197
.5  317  215
.6  333  220

I noted the same observation as Blair....intake port started to go turbulent and there was an obvious sound change headed into .600" on the intake side. 

I will stick them on a 390, but it will be a bit.  At this point, I must say, that I'm impressed as this is not what I'm used to seeing with Trick Flow parts.   Normally, they flow advertised numbers with the spark plug out....  I will eat a little crow on this one. 

A few other notes:

Nice shape chamber with a nice blend on the spark plug hole.  Chambers are a little small in comparison to what we're usually seeing with Barry's heads, BBMs, Edelbrocks, etc.  For a guy with pistons setup for a 74-75cc chamber, there will be a significant compression bump if these heads are used.

I would be interested in buying these bare from here on out, if I choose to use them for builds, so I can have control over the valve spring/retainer package. 

Pictures are on my Instagram......

Fresh recolor, completely rebuilt, skirted boosters.

Had this on my 354 inch Cleveland, 615 hp @ 8000 rpm.

Asking $500 plus the shipping. Steal of a deal, beautiful carburetor.

I feel like I'm almost too old to use it LOL, but I signed up for account this morning anyway.  If anyone is on there, I'm listed under brentlykinsmotorsports.

It will go through November 30th.

Discounts are based off of website pricing: www.lykinsmotorsports.com

*10% off all Morel lifters
*10% off all off-the-shelf Quick Fuel carbs
*$25 off custom Comp Cams solid or hydraulic roller camshafts (regular $350 + shipping)
*Free shipping on full rotating assembly kits (Scat crank, rods, Racetec pistons, Mahle rings, FM bearings)
*10% off all Quicktime bellhousings
*Edelbrock FE cylinder heads - $50 off of 60069 each, free shipping on all other Edelbrock cylinder heads
*Free shipping on all MSD products (MSD is MAP pricing, not allowed to undersell other venders)
*$100 off all Dart SBF blocks
*$100 off BBM FE blocks (Please call/email for current availability)

Any leads, please let me know.

I know some of you guys are Cleveland fans too. 

This engine is a 354 cubic inch piece, using factory 4V cylinder heads, a Strip Dominator intake, and a Dominator carburetor.  Compression was 12:1.   



Turn up the volume!

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

This one made 615 hp @ 8000, with 468 lb-ft of torque.