Info and Pictures Collected for the SOHC Cammer 427 Ford
427 SOHC Shop Manual (available-call)
Bill Malone SOHC 2/05
more from Bill on 3/20/05 of disassembly
Link to Bill's Project Page (click here)
Info from the FE Forum 3/24/05
Camshaft Info Provided by Rob McQuarie
Intake Exhaust
Opening at .100 valve 22 BTC 58 BBC
Closing at .100 valve 40 ABC 4 ATC
Duration 328 328
Overlap 112
Valve lift-zero lash .565
lash cold .015 .025
Rocker ratio: Minimum 1.227 Maximum 1.307
Camshaft and other info provided by Tim Maloney
Specifications
Engine
Type: ......................90 Deg V-8 SOHC
Bore: ...................................... 4.2346
Stroke: .................................... 3.784
Displacement: ............................ 427
BHP at Engine RPM: ......... 616 at 7000
Torque at Engine RPM: ..... 515 at 3800
Compression Ratio: .................. 12.0:1
Fuel System: .................... Carburation
Number Carburators: .................. 2-4V
Oil System: ....................... Wet Sump
Oil Pressure: ..................... 80-84 PSI
Dry Weight: (less air cleaner, clutch assy, exhaust manifolds ..... 765#)
Firing Order: ............... 1-5-4-2-6-3-7-8
Ignition: .... Dual Breaker Transistorized
Maximum Spark Advance: 40 deg at 4000
Alternator Rating: ................. 40 Amps
Piston And Pin
Piston To Bore (Skirt): ...... .006/.007
Skirt Taper: ........................... .001
Top Of Piston To Top Of Block: .. ______(Need info)
Piston pin Matl: ..... SAE 5015 Steel
Piston Pin Clearance - (piston) .0005/.0007
Piston Pin Clearance - (rod) .0003/.0005
Piston Pin End Play : .................... .028
Piston Pin Offset: .......................None
Piston pin Diameter: ............... .9751
Piston Rings
Width: (Top) .062 (2nd) .062 (Oil Control) .125
End Gaps: (Top) .028 (2nd) .028 (Oil Control) .032
Groove Clearance: (Top) .0027 (2nd) .0027 (Oil Control) Snug To Groove
Connecting Rods
Material: ...................... SAE 1041 Steel
Length Center-to-Center........... 6.488
Weight: .......................... 806 Grams
Clearance (journal): .......... .002-.003
End Play (two rods): ......... .018-.028
Crankshaft
Material: ................ SAE 1046 Steel
Main Bearing Clearance:.. .003-.0031
End Play: .................... .004-.008
Main Bearing Diameter: ... 2.7488
Crankpin Journal Diameter: ... 2.4384
Cylinder Block
Cylinder Bore Diameter (range): 4.2328 - 4.2364
Thrust Bearing Face Runout: .001
Accessory Drive Shaft Bearing Clearance: .001 - .003
Cylinder heads
Volume cc with Valves & Spark Plugs in Place: 120cc
Camshaft Bearing Clearance: ....... .001 - .003
Camshaft End Play: ................... .001 - .007
Valve Train Drive
Timing Chain Tension: ............... Snug
Distributor
Backlash: .................... .002 - .010
End Play: .................... .004 - .020
Initial Timing: ..... 8 Deg at 700 RPM
Valve System
.......................................Intake...................Exhaust..............
Valves per Cylinder: ......... 1 ................... 1 ..............
Gage Diameter: ............... 2.220 .................. 1.870 ............
Lash (cold): .................... .015 ................... .025 .............
Seat Width: .................... .03 ..................... .055 .............
Seat Angle: .................... 30 deg ................. 30 deg ...........
Stem Clearance: ....... .001-.0024 ................. .001 - .0024 ......
Camshaft Timing ................. Intake ................. Exhaust ...........
--Opening at .100 Valve Lift 22 deg BTC .......... 58 deg BBC....
Closing at .100 Valve Lift 40 deg ABC ......... 4 deg ATC .....
Duration.......................... 328 ................... 328 ...........
Overlap .......................................... 112 deg ......................
Camshaft Drive mechanism: Dual Strand Rollerless Chain
Valve Lift - Zero Lash ...................... .565 in & exh
Valve Spring Loads ............... Valve Open ........... Valve Closed ....
.....Inner............................. 35 ........................ 150 ..............
.....Outer ........................... 75 ........................ 200 ...............
Rocker Arm Ratio
...Maximum ................ 1.307
...Minimum ................ 1.227
Rocker Arm to R/A Shaft Clearance: .......... .0015 - .003
Rocker Arm Roller Width: ........................ .450
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Also Thanks to Richard Distel for his Help in collecting Camshaft Info.
