Product Summary

Assembled Cylinder Head Style, Aluminum, Natural

  • 290CC Head, Hydraulic Roller
  • Recommended for moderate street or street/strip big block Chevys with displacements up to 509 cubic inches, operating at or below 6500 RPM
  • Capable of flowing 367 CFM at 0.600" of lift
  • Heads are designed for 3/8" pushrods
  • FLOTEK recommends the use of .120" thick-wall pushrods
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Key Specs

Cylinder Head StyleAssembled
Material TypeAluminum
FinishNatural
Combustion Chamber Volume112cc
Intake Runner Volume290cc
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Need To Know

Quick and Easy Returns

Return Policy

Flo-Tek 290-600 Details

This item is not sold as a pair, this is a single cylinder head.

FLOTEK's medium sized 290cc oval port cylinder head with 112 combustion chamber is recommended for moderate street or street/strip big block Chevys with displacements up to 509 cubic inches, operating at or below 6500 RPM. Capable of flowing 367 CFM at 0.600″ of lift; tested on Super Flow Bench 1020. It may be necessary to slightly clearance or modify the the piston due to our more efficient heart shaped combustion chamber design with some domed aftermarket pistons, most of the newer designed dome profiles will clear. FLOTEK recommends material be removed from the piston and not the cylinder head. Our combustion chamber shapes are very critical to flow and altering the cylinder head can unfavorably affect flow and power performance. It is the customer's responsibility to verify proper piston to head clearance. Heads are designed for 3/8″ pushrods. Larger pushrods will not fit without clearance and is not recommended since some areas are very thin. FLOTEK recommends the use of .120″ thick-wall pushrods.

  • 290CC Head, Hydraulic Roller
  • Recommended for moderate street or street/strip big block Chevys with displacements up to 509 cubic inches, operating at or below 6500 RPM
  • Capable of flowing 367 CFM at 0.600″ of lift
  • Heads are designed for 3/8″ pushrods
  • FLOTEK recommends the use of .120″ thick-wall pushrods

HYDRAULIC ROLLER (Part# 290-600) – PSK-236-1-7 Up to .600 Lift CL #147 @ 1.90 OP #365 @ 1.22 C/BIND 1.12 O.D 1.53" Single W/D I.D. 1.12

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.

Flo-Tek 290-600 Specifications

KEY SPECS
MFG. Part #290-600
BrandFlo-Tek
Cylinder Head StyleAssembled
Material TypeAluminum
FinishNatural
Combustion Chamber Volume112cc
Intake Runner Volume290cc
GENERAL
Exhaust Runner Volume135cc
Combustion Chamber Volume Range110cc - 119cc
Intake Runner Volume Range290cc - 299cc
Exhaust Runner Volume Range130cc - 139cc
Combustion Chamber StyleHeart
CNC-Machined RunnersNo
CNC-Machined Combustion ChamberNo
Spark Plug StyleAngle
Intake Port ShapeRectangle
Intake Port LocationStandard
Exhaust Port ShapeRound
Exhaust Port LocationRaised
ColorNatural
Intake Valve Diameter2.3"
Intake Valves IncludedYes
Intake Valve Angle24 °
Exhaust Valve Diameter1.88"
Exhaust Valves IncludedYes
Exhaust Valve Angle15 °
Valve Spring IncludedYes
Spring Diameter1.53"
Damper Spring IncludedYes
Number of Springs Per ValveDual
Maximum Lift0.600"
Machined for O-RingNo
Valve Seat Machine Style3-angle
Valve Seats MachinedYes
Valve Seat MaterialPowdered Metal
Valve Stem Seals IncludedYes
Valve Stem Seal TypePositive Stop
Valve Stem Seal MaterialViton
Valve Guides IncludedYes
Valve Guide MaterialManganese Bronze
Locks IncludedYes
Lock Style10 Degree
Retainers IncludedYes
Retainer MaterialSteel
Guideplates IncludedYes
Rocker Arms IncludedNo
Rocker Arm Studs IncludedNo
Stud Diameter0.4375"
Rocker Arm Nuts IncludedNo
Oiling StyleThrough Pushrod
Heat CrossoverNo
Steam Holes DrilledNo
Accessory Bolt Holes DrilledYes
Valve Cover Mounting StylePerimeter Bolt
Sold in QuantityEach
GTIN Code850134007648

Ratings & Reviews

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Just breath! Great flow Numbers

5.0

4 months ago

Dad's 50

Glenrock WY

Verified

Installed on bbc 454, I am super impressed with these heads, comes with large stainless valves, a good quality valve spring for roller cam, intake ports matched right up to speedway motors intake gasket, reduced engine weight significantly, I recommend buying ARP head bolts worth the extra few bucks I rate it 10/10

Would Recommend

Showing 1 of 1 reviews

Questions & Answers

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