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ProMaxx Performance 2168

185cc Aluminum Cylinder Heads Small Block Chevy

ProMaxx Performance 2168

723-2168

ProMaxx Performance 2168 185cc Aluminum Cylinder Heads Small Block Chevy $843.99
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185cc Aluminum Cylinder Heads
  • Small Block Chevy
  • 2.02''/1.60'' Valves
  • 185cc Intake Runner
  • 64cc Combustion Chamber
  • Angle Plug
  • Assembled
  • Sold as pairs

  • ProMaxx Performance 2168 Details

    185cc Aluminum Small Block Chevy Cylinder Heads

    Technical Specifications and Recommended Components:
    Combustion Chamber - 64cc
    Weight - 55.00 lbs
    Intake Runner - 185cc
    Exhaust Runner - 62cc
    Intake Valve Size - 2.02"
    Exhaust Valve Size - 1.60"
    Max. Valve Spring Lift - .575" Hydraulic Flat Tappet
    Spring Pressure - Closed 115 lbs. @ 1.800", Open 315 lbs. @ 1.225"
    Valve Seal Material - Viton
    Valve Guide - Manganese Bronze
    Retainer Material - Steel
    Valve Job - 5-angle
    Head Bolts - ARP 070-134-3601
    Valve Spacing - OEM
    Valve Seats - Hardened Steel
    Intake Gasket - Fel-Pro 375-1206 or 375-1266
    Exhaust Gasket - Fel-Pro 375-1405
    Head Gasket - Fel-Pro 375-1004 or 375-1094
    Spark Plug - 750" Reach Gasket Seat

    Specifications:

    Accessory Bolt Holes Drilled
    Yes
    CNC-Machined Combustion Chamber
    No
    CNC-Machined Exhaust Runner
    No
    CNC-Machined Intake Runner
    No
    Combustion Chamber Volume (cc)
    64
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Assembled
    Damper Spring Included
    Yes
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    Square
    Exhaust Runner Volume (cc)
    62
    Exhaust Valve Diameter (in.)
    1.6
    Exhaust Valves Included
    Yes
    Guideplates Included
    Yes
    Heat Crossover
    No
    Intake Port Location
    Standard
    Intake Runner Volume (cc)
    185
    Intake Valve Diameter (in.)
    2.02
    Intake Valves Included
    Yes
    Lock Style
    Stock
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.575
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.27
    Quantity
    Sold as a pair
    Retainer Material
    Steel
    Retainers Included
    Yes
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    Yes
    Rocker Arms Included
    No
    Spark Plug Style
    Angled
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Perimeter bolt
    Valve Guide Material
    Manganese bronze
    Valve Guides Included
    Yes
    Valve Seat Machine Style
    5-angle
    Valve Seat Material
    Ductile iron
    Valve Seats Machined
    Yes
    Valve Springs Included
    Yes
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    2168

    The ProMaxx Performance Small Block Chevy Cylinder Heads are manufactured from cast aluminum and are offered with straight or angled spark plug ports, a variety of intake port runner, combustion chamber and valve sizes to work on all of your performance engine builds from mild to wild!

    Features
  • All New Parts and Castings
  • Accepts Perimeter Bolt Valve Covers
  • Stainless Steel Valves
  • 3/8" Screw-In Studs and Guideplates
  • Sold In Pairs

    JEGS EZ Kits are designed by JEGS professionals to ensure that you get all the correct parts you need.

  • 2168 - ProMaxx Performance Small Block Chevy Aluminum Cylinder Heads is rated 4.0 out of 5 by 1.
    Rated 4 out of 5 by from like them This product is just what I had expected, good looking product.
    Date published: 2014-11-04
    • y_2018, m_2, d_20, h_20
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    • clientName_jegs

    could i use these on my 94 chevy with center bolt vavle covers thanks

    Asked by: farm
    These are perimeter bolt only and will not work with centerbolt covers.
    Answered by: Jon Jegs Tech
    Date published: 2018-02-08

    Are these heads able to be used with a solid flat tappet cam shaft /

    Asked by: pappy 65
    The springs will have to be changed for the solid lift cam.
    Answered by: Jon Jegs Tech
    Date published: 2018-02-08

    Can this head run self aligning roller rockers (Comp Cams 1617-16)

    Asked by: Harvick4
    Yes, but you would want to remove the guide plates if you are using self-aligning rocker arms.
    Answered by: Rusty B
    Date published: 2017-12-04

    Can you run a hydraulic roller cam with these

    Asked by: Jaybird1
    The valve springs would have to be changed for a hydraulic roller.
    Answered by: Jon Jegs Tech
    Date published: 2017-12-01

    Will these fit older gen 1 chevy motor ?

    Asked by: freddyNH
    Yes, these head will work on a gen 1 sbc.
    Answered by: BrandonJ
    Date published: 2017-11-17

    how many rps is this good for.... iwant a 350 or a 383 with a redline of 7k

    Asked by: mikeyb
    With the valve springs included on this heads for up to .575 lift hyd cam, 6500 to 7000 max suggested RPM
    Answered by: Jegs Tech
    Date published: 2017-11-07

    are the valve springs suitable for flat tappet cams?

    Asked by: 72302
    Max. Valve Spring Lift - .575" Hydraulic Flat Tappet
    Answered by: Jegs Tech
    Date published: 2017-11-07

    Can I use. Stock rocker arms?

    Asked by: Jayno
    Yous should be able to, it will depend on the original rocker arm in the engine.
    Answered by: Rusty B
    Date published: 2017-10-20
    • y_2018, m_2, d_20, h_20CST
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