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ProMaxx Performance 2151 - ProMaxx Performance Small Block Chevy Vortec Cylinder Heads



ProMaxx Performance 2151 - ProMaxx Performance Small Block Chevy Vortec Cylinder Heads

Part Number: 723-2151

Cast Iron Small Block Chevy Vortec Cylinder Heads
  • Assembled
  • Straight Plug
  • Intake Ports: 185cc
  • Combustion Chambers: 64cc
  • Valves: 2.02" Intake, 1.60" Exhaust
  • Pair
  • $735.00
    Ships
    Made In USA
    FREE Shipping

    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
    Cast iron
    Cylinder Head Style
    Assembled
    Damper Spring Included
    Yes
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    Square
    Exhaust Runner Volume (cc)
    60
    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
    Straight
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Center and 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:
    2151

    Manufactured from cast iron, ProMaxx Performance Small Block Chevy Vortec 185cc Cylinder Heads include 2.02" intake/1.60" exhaust valves, valve springs with .575" max lift for hydraulic flat tappet camshafts or .500" max lift for hydraulic roller camshafts, 3/8" screw-in studs, and guideplates.

    Features
  • All New Parts and Castings
  • Accepts Center Bolt or Perimeter Bolt Valve Covers
  • Drilled for Vortec and Carbureted Intake Patterns
  • Large Diameter Spring Pockets
  • Perfect for Street, Strip, or Oval Track Applications
  • Stainless Steel Valves
  • Screw-In Studs and Guideplates
  • Sold In Pairs
  • Assembled in the USA


    JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need.

  • 2151 is rated 2.5 out of 5 by 2.
    • 2016-08-30T08:58CST
    • bvseo_cps, prod_bvrr, vn_cps_3.3.0
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_2
    • loc_en_US, sid_10001_10001_1088803, PRD, sort_relevancy
    • clientName_jegs
    Rated 2 out of 5 by from Promax heads vortec iron Both heads had valve seat problems 3 on one head 2 on the other all on exhaust side assembled heads . (But not bolt on) ( bad build quality)
    Date published: 2031-08-16
    Rated 3 out of 5 by from Stock center bolt valve covers would not work Got these heads couple of months ago very nice screw in studs guide plates stainless steel 5 cut valves 202 and160 the only problem the stock center bolt valve covers would not fit they hit on the guide plates which was a problem on the 99 suburban
    Date published: 2014-12-25
    • 2016-08-30T08:58CST
    • bvseo_cps, prod_bvrr, vn_cps_3.3.0
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_2
    • loc_en_US, sid_10001_10001_1088803, PRD, sort_relevancy
    • clientName_jegs
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