A460 head flow numbers

I know it's here somewhere, but For the life of me I can't find it. SO, does anyone have some as delivered from Trick Flow the port flow numbers for the CNC ported 355 heads? Doing some research and curious what they are.

kjett wrote:I know it's here somewhere, but For the life of me I can't find it. SO, does anyone have some as delivered from Trick Flow the port flow numbers for the CNC ported 355 heads? Doing some research and curious what they are.

Trick Flow used to have the "out of the box" figures on their website a few years ago.

Yeah, searched there and looks like they took them down from the normal web surfer. Might have some "dealer login" that would give access though.

OPPS, just noticed you said CNC'd.
This is for TFS A-460's with 2.300 valves, I could not the info for 2.350 intake valve.

TrickFlow Specialties “A460” Head For The Big Block Ford
General Specifications

Part Number: Bare: #5441B001 Assembled: #5440T801

Material: A356-T6 Aluminum Alloy.

Intake Port Opening: Rectangular, 1.800”W x 2.500”H.

Port Locations: Intake: Raised .750” From Stock.
Exhaust: Raised 1.812” From Stock, BBC Flange Pattern.

Runner Volumes: Intake: 340cc.
Exhaust: 172cc.

Combustion Chamber: 91cc.

Valve Spring Pocket: 1.760” Diameter.

Valve Guide Material: Manganese Bronze Alloy. Intake: TFS # 41400251
Exhaust: TFS # 41400252

Valve Angles: Intake: 13* x 5* Exhaust: 9* x 5*

Valve Seat: Intake: TFS # 54400271
Exhaust: TFS # 54400272

Maximum Valve Sizes: Intake: 2.400” . Exhaust: 1.940”.

Recommended Parts

Rocker Arms: TFS Part Number:
53400621 = 1.73 Ratio, 7/16” Stud.

Crane Cams Number:
27750-16 = 1.73 Ratio, 7/16” Stud.

Rocker Arm Stud Girdle: TFS # 54400700 For 7/16” Rocker Studs.

Pushrod Guideplates: 3/8” Diameter Pushrod. TFS # 54400623

Pushrods: One Piece, Hardened Chrome-Moly Steel. 3/8” Dia.

Sparkplugs: 14mm Thread, .750” Reach, 5/8” Hex Head.
Starting Point: Autolite # 3933 & Champion # C59C.

Gaskets: Intake: TFS # 2706 (.060” Thick)
TFS # 2707 (.120” Thick)
Head: Fel-Pro # 1018 (Up To 4.455” Bore)
Fel-Pro # 1028 (Up To 4.625” Bore)
Exhaust: Fel-Pro # 1412 (BBC, 2.130” Diameter)

Fasteners: Head Studs: ARP # 255-4304
Rocker Studs: TFS # 54400614
ARP # 235-7201
Component Specifications For Assembled Heads

Valvesprings: Mechanical Roller Camshaft.
TFS # 41400415
1.640” O.D Double Spring With Damper.
250lbs Seat PSI @ 2.00” Installed Hgt.
800lbs Open PSI @ 1.150” Compressed Hgt.
650lb / inch Spring Rate.
.850” Maximum Lift.

Valvespring Cups: 1.640” O.D Spring Dia. , .060” Thick. TFS # 41400434

Valves: Intake: 2.300” Head Dia, 11/32” Stem, 5.755 OAL. TFS # 54400211
Exhaust: 1.880” Head Dia, 11/32” Stem, 5.700 OAL. TFS # 54400212

Locks: 10*, With Lash Cap Recess. TFS # 52400444

Retainers: 10*, Titanium Steel. TFS # 214T0630

Valve Seals: Viton Rubber, Positive Clamp. TFS # 51400454

Flow Data
Lift Intake Exhaust All Testing Done @ 28”
.100” 72 64 Water PSI.
.200” 142 132 Measured In CFM.
.250” 177 140 2.300” Intake Valve.
.300” 213 156 1.880” Exhaust Valve.
.350” 241 173 As Cast, No Porting.
.400” 271 190
.450” 297 207
.500” 325 222
.550” 345 238
.600” 365 250
.650” 381 260
.700” 395 268
.750” 406 276
.800” 412 280

seen a set of the TFS A460 CNC 18 bolt heads with 5/18 intake valve stems flowed . only number I remember is 445 cfm at .800" lift