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ProMaxx Performance 225cc Aluminum Cylinder Heads Small Block Chevy

ProMaxx Performance 2120


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ProMaxx Performance 225cc Aluminum Cylinder Heads Small Block Chevy $925.99
225cc Aluminum Cylinder Heads
  • Small Block Chevy
  • 2.08''/1.60'' Valves
  • 225cc Intake Runner
  • 64cc Combustion Chamber
  • Angle Plug
  • Assembled
  • Sold as pairs

  • ProMaxx Performance 2120 Details

    225cc Aluminum Small Block Chevy Cylinder Heads

    Technical Specifications and Recommended Components:
    Combustion Chamber - 64cc
    Weight - 55.00 lbs
    Intake Runner - 225cc
    Exhaust Runner - 62cc
    Intake Valve Size - 2.08"
    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


    Manufacturer's Part Number:

    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!

  • 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.

  • 2120 - ProMaxx Performance Small Block Chevy Aluminum Cylinder Heads is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from I LOVE it I Love tham there nice for a fresh start on a new motor
    Date published: 2017-04-10
    • y_2018, m_8, d_14, h_6
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
    • cp_1, bvpage1
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    • loc_en_US, sid_10001_10001_1150779, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Do these heads fit an lt1

    Asked by: Sleeperchevy865
    No, we have a number of heads that will. http://www.jegs.com/webapp/wcs/stores/servlet/SearchResultsPageCmd?N=4294964792&Nrpp=180&Ntt=lt1+cylinder+head&Tab=SKU&storeId=10001&catalogId=10002&langId=-1
    Answered by: Rusty B
    Date published: 2018-03-05
    • y_2018, m_8, d_14, h_6CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_1
    • loc_en_US, sid_10001_10001_1150779, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations