2.8/3.1/3.4 Gen 1 Iron Head

The iron head engine engine had a few variations, and all of the products on our site are made for the large main journal engines released in 1985.  Notably, the heads went from a 1.3/"  1.6" valve set to 1.42" / 1.72".  The mains were changed due to the 80-84 crankshafts breaking.  It is cheaper and easier to start with a newer iron head block for those looking to rebuild the earlier 2.8 engine.

  • Forged Connecting Rods

    Modified SCAT SBC connecting rods to drop right in any GM 60V6 engine with a 5.700" stock rod (2.8 to 3400).   Available in I or H beam configuration, I beam having 3/8" ARP bolts and H beam with 7/16" ARP bolts.  Bushed pin default, contact if you want pressed pins. Pin bore is stock SB…

    $499.99

  • L19 Rod Bolt Upgrade for Forged Rod Upgrade

    7/16" L19 Alloy Steel rod bolts for use in our Modified SCAT SBC connecting rods.  Do not handle these bolts with your bare hands.  Wear gloves and keep oiled! From ARP.  L19: This is a premium steel that is processed to deliver superior strength and fatigue properties. L19 is a very high…

    $184.99

  • HD Bearings for Forged Rods

    These Clevite H series bearings are meant for the Forged I and H beam connecting rods offered here on WOT-Tech.  60V6 bearing tangs will not line up properly with the SBC tangs used. Clevite H-Series rod bearings were primarily developed for NASCAR racing, but are well suited to other types o…

    $84.99

  • 3.4 Iron Head Forged Pistons

    For those using Iron Heads on their GM 60V6, we have adjusted our pistons for either 8.5 or 11.5 compression ratings.  Custom is also available.  For the best factory style ring options, we have opted to not use the original iron head ring grooves in favor of the 3400 rings, which are the same wid…

    $749.99

  • 2.8 Iron Head Forged Pistons

    For those using Iron Heads on their GM 60V6, we have adjusted our pistons for either 8.5 or 11.5 compression ratings.  Custom is also available.  For the best factory style ring options, we have opted to not use the original iron head ring grooves in favor of the 3100 rings.  For the best ring op…

    $749.99

  • Fidanza Aluminum Flywheel

    These Fidanza billet aluminum flywheels are manufactured from the highest quality 6061-T6 billet aluminum. They feature excellent heat dissipation and weight reduction. The replaceable friction surface is constructed from 1045 steel and attached with military-grade aerospace fasteners. Fidanza bille…

    $399.99

  • ARP Rod Bolts/nuts

    ARP rod bolts/nuts for the 60V6 2.8, 3.1, 3.4, 3100, 3400, and 3.4 DOHC connecting rods.  These are an excellent upgrade for the money, especially when compared to the cost of new stock replacement rod bolts.  Cutting the rod caps and resizing the big end is required.      The description…

    $79.99

  • ARP 2.8-3.4 Main Stud Kit

    Main Stud Kit f or non windage tray use, such as 2.8/3.1/3.4 iron head engines and 2.8/3.1 MP FI aluminum head engines.

    $119.99

  • GM 3.1 / 3.4 Crank Scraper

    This scraper is designed for the 3.1 MPFI, 3100, 3400, and 3.4 DOHC engines. Ishihara-Johnson crank scrapers are a very simple but effective way to improve the performance of your engine! During normal engine operation a significant amount of oil adheres to or becomes entrained in a cloud surr…

    $84.99

  • GM 2.8 w/ DIS Crank Scraper

    This scraper is designed for the 2.8 engine with the DIS ignition.  Distributor engines should use the non DIS scraper instead. Ishihara-Johnson crank scrapers are a very simple but effective way to improve the performance of your engine! During normal engine operation a significant amou…

    $84.99

  • GM 2.8 w/o DIS Crank Scraper

    This scraper is designed for the 2.8 engine with a distributor.  DIS ignition setups should use the 2.8 w/ DIS scraper instead. Ishihara-Johnson crank scrapers are a very simple but effective way to improve the performance of your engine! During normal engine operation a significant amount of…

    $84.99

  • Wide Cam Bearings

    These SBC cam bearings are a direct replacement, and will spread the load across the entire cam journal, unlike the stock bearings.  Bi metal to support the roller cam profile and  the load of higher spring pressure associated with performance cams.  Regular SBC cam bearings are not designed for…

    $44.99

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