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Flo-Tek Assembled S/B Chevy Aluminum Head, Straight Plug
Flo-Tek Assembled S/B Chevy Aluminum Head, Straight Plug

Flo-Tek Assembled S/B Chevy Aluminum Head, Straight Plug

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Flo-Tek Assembled S/B Chevy Aluminum Head, Straight Plug
Flo-Tek Assembled S/B Chevy Aluminum Head, Straight Plug
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Part # UP83468
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.



These are garage sale priced because it is dirty.

No Warranty, No Returns on Garage Sale Items    


You don't sacrifice quality for a low price - get both with a Flo-Tek aluminum cylinder head. This Chevy aluminum head is loaded with high end features like bronze valve guides, multi angle valve job, and 3/8" screw-in rocker studs with guideplates. This is a pre-1986 design small block Chevy cylinder head with a standard exhaust port design.

These fully assembled heads have single valve springs (with flat wire inner damper) with a seat pressure of 130 lbs. They are compatible with solid (mechanical) flat tappet or hydraulic flat tappet cams with up to .550 lift. Valves used are +.100" long and must be used in conjunction with aftermarket aluminum roller rocker arms to clear valve springs used which are 1.46" diameter. The valve springs on these heads have 115 lbs @ 1.900" installed height and 240 lbs of open pressure at .550" lift which is the max lift spec as well. Heads are sold each.

  • Head is sold individually
  • 200cc intake runners
  • 62cc exhaust runners
  • 64cc combustion chambers
  • 2.02" and 1.60" stainless steel valves
  • High performance springs for .550" lift
  • Compatible with most flat tappet camshafts
  • Five angle valve job
  • Bronze guides
  • Viton positive valve seals
  • Straight plug
  • 3/8" screw-in studs and guide plates
  • Port for temperature probe
  • Weighs 28 pounds assembled




Head Bolt Torque 50-65-80 Ft-Lb, 75 Ft-Lb on Bottom (Permatex#80631)
Rocker Stud Torque 45 Ft-Lb
Intake Port Gasket Fel Pro 1205 or Equivalent
Exhaust Port Gasket Fel Pro 1404 or Equivalent
Head Gasket 350/383 Fel Pro 1003, Cometic C5399
Head Bolts & Studs ARP134-3601, Manley 42313, ARP 134-4001
Head Bolt Washers Manley 42102
Suggested Manifold Performer RPM Air Gap, Weiand Street Warrior 8150
Spark Plug Starting Range NGKR5671A-7/4091 Hotter or Colder or Equivalent
Intake Port Volume 200cc
Exhaust Port Volume 78cc
Combustion Chambers 64cc
Max Spring Pocket Diameter 1.560”
Street Build Spring 1.46” Single W/D
Hydraulic Roller Spring Kit 1.46” Dual Spring -PSK618-1-10
Solid Roller Spring Kit 1.55” Dual Spring -PSK583-1-10
Hydraulic Roller/Street Build Intake Valve 2.02 + .100
Hydraulic Roller/Street Build Exhaust Valve 1.600 + .100
Solid Roller Intake Valve 2.02 + .200 (P11544JF)
Solid Roller Exhaust Valve 1.600 + .200 (P11751JF)
Rocker Arms 91511772SW
Push Rods Hardened Push Rods
Some parts are not legal for use in California or other states with similar laws/regulations

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