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Product Summary

Chevy Small Block V8, Bare Cylinder Head Style, Natural

  • Has a standard port location for use with most intake and exhaust manifolds
  • Will accept both perimeter and center bolt valve covers
  • The 1.560” max spring pocket diameter gives you many valve spring options
  • Valve guides are compatible with all common valve materials and fuels
  • Features a 3/8” NPT coolant temperature probe port

Key Specs

Cylinder Head StyleBare
Material TypeAluminum
FinishNatural
Combustion Chamber Volume64cc
Intake Runner Volume180cc

Need To Know

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Details

Breathe new life into your small block Chevy with a set of FloTek aluminum cylinder heads from Speedway Motors. If you're looking for a budget-conscious, yet proven, performance cylinder head to build upon, check out these bare cylinder heads from FloTek. Features like fast-burn combustion chambers, high-velocity ports, large-diameter spring pockets, and rugged construction make these heads the obvious performance platform for small block engines.

FloTek cylinder heads are designed for optimal airflow and performance on SBC engines with a 4.0" bore. Large 180cc intake runners, with an improved short-side radius, provide a rush of air into the cylinders, increasing torque. The key ingredient for big power, however, is the 64cc fast-burn combustion chambers. Air flows in and out of these chambers via a 3-angle valve job. A 62cc exhaust runner gets the spent gasses out. All told, these heads will flow 238 CFM @ .600" lift on the intake and 181 CFM @ .600" lift on the exhaust.

FloTek aluminum cylinder heads arrive packed full of standout features at an incredible value. At 20 lbs. apiece, the state-of-the-art aluminum alloy casting is a great base for any mild SBC build. FloTek cylinder heads are built with bronze valve guides, high nickel valve seats, milled and drilled ends for accessory bracket mounting, and are available in straight or angle spark plug configurations. Fully assembled heads are also available for engines using flat-tappet cams up to .550" lift.

Features

  • Heads are sold EACH
  • Standard port location for use with most intake and exhaust manifolds
  • 180cc intake port volume
  • 62cc exhaust port volume
  • 64cc fast-burn combustion chambers deliver big power
  • 2.02” intake/1.60” exhaust valves
  • 3-angle valve job enhances flow at low-to-mid lifts
  • Intake flows 238 CFM @ .600” lift
  • Exhaust flows 181 CFM @ .600” lift
  • Accepts both perimeter and center bolt valve covers
  • 1.560” max spring pocket diameter gives you many valve spring options
  • High nickel powdered metal valve seats provide optimum heat transfer and wear characteristics
  • Manganese bronze valve guides reduce friction
  • Valve guides are compatible with all common valve materials and fuels
  • Machined for 3/8” screw-in rocker arm studs and guide plates (not included)
  • Blocked exhaust heat riser manifold crossover port
  • 3/8” NPT coolant temperature probe port
  • Designed for 4" bore small block Chevy engines (302/327/350/383)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Specifications

KEY SPECS
MFG. Part #101500
BrandFlo-Tek
Cylinder Head StyleBare
Material TypeAluminum
FinishNatural
Combustion Chamber Volume64cc
Intake Runner Volume180cc
GENERAL
Exhaust Runner Volume62cc
Combustion Chamber Volume Range60cc - 69cc
Intake Runner Volume Range180cc - 189cc
Exhaust Runner Volume Range60cc - 69cc
Spark Plug StyleAngle
Intake Port ShapeRectangle
Exhaust Port ShapeSquare
Intake Valve Diameter2.020"
Exhaust Valve Diameter1.600"
Sold in QuantityEach