SB Ford 175cc Aluminum Cylinder Heads. 2.02" intake, 1.60" exhaust, 61cc combustion chambers. Manufactured from A356-T6 aluminum. Assembled with 1.25" OD springs for hydraulic flat tappet (non-roller) cams up to .525" lift. Each pair comes assembled with a detailed flow sheet and assembly blueprint. Vacuum tested. Download Data here - DOWNLOAD Sold as pairs. NOTE: Not for use with factory 5.0L pistons. Check piston to valve clearance in all applications.

• Head Gasket Fel-Pro #1011-2 or equivalent
  Head Bolt Torque 7/16" 70/80 ft/lb - 1/2" 100/110ft/lb short/long
  Head Bolts ARP #154-3605 (7/16") #154-3603 (1/2")
  Head Studs ARP #154-4003 (1/2")
  Rocker Stud Torque 45 ft/lbs.
  Rocker Stud Girdle OE Stock Configuration
  Rocker Arms Stud Mount Standard
  Intake Port (cc) 175cc
  Intake Port Dimensions 2.00" x 1.18"
  Intake Gasket Fel-Pro #1250 or equivalent
  Exhaust Port (cc) 66cc
  Exhaust Port Location Stock
  Exhaust Port Dimensions 1.32" x 1.27"
  Exhaust Gasket Fel-Pro #1415 or equivalent
  Intake Valve Size 2.02"
  Exhaust Valve Size 1.60"
  Valve Angle 20°
  Valve Spring Pocket O.D. 1.56"
  Valve Guide Size 11/32" .530" (Top) .570" (Base)
  Deck Thickness .625"
  Combustion Chamber (cc) 61cc
  Spark Plug Size 14mm x .750" Gasket (eg. Champion #RC12YC)
  Spark Plug Location/Angle OE/Angle

Intake Valves: PW 360020 (2.02" x 4.91")
Exhaust Valves: PW 360016 (1.60" x 4.93")
Valve Springs: PEP 053-574-700
Valve Spring Cups: PW 360112
Valve Spring Retainers: Manley 23651-16
Valve Locks: Howards 93010 (11/32" x 7 degree)
Valve Seals: PW 360480 (11/32"x.530")
Rocker Studs: PW 360338 (3/8" x 7/16")
Pushrod Guide Plates: PW 360210