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Milodon Main Caps


Milodon
Milodon Main Caps

Product images may differ from actual product appearance.

These aftermarket main caps will strengthen not only factory 2 bolt blocks, but also 4 bolts. Unlike the factory caps, these not only have more cross sectional strength, but the real secret is in the angled side bolts!
The side bolts are angled so they pull from the side walls of the block and not the flimsy main web area. A bolt that is angled will require a massive amount of additional load to flex or stretch, let alone break, compared to a conventional straight up bolt. The side bolts heavily load the cap against the register step which stops ''cap walk''. It is cap walk that causes a great amount of unforeseen bearing damage and horsepower loss.
Milodon main caps are CNC machined from high strength ductile material which has the proper balance of strength yet is not too rigid that would allow transfer of increased shock loads to the crank and bearings. In this case more is not better when it comes to hardness.
Only .030'' of material removal is required upon initial installation, which will allow 100% cleanup on a damaged block. The drill bushing used to drill and tap the side bolt holes is included in the kit. The side bolts can be installed by anyone with a hand drill and a tap. If the block has square main registers, the block needs only a standard align bore to finish the job. Milling the mains is only necessary if the main registers are not square.
All necessary bolts, washers and the drill bushing are included in the center three cap kit. For maximum strength the installation of Milodon main studs are highly recommended.
Made in the U.S.A.


19 Products
Small Block Chevy

697-11050
Main Caps
  • Small Block Chevy 283-327
  • Angled Bolts
  • $255.99
    Order Today Ships 09/25/14

    697-11150
    Main Caps
  • Small Block Chevy 350
  • 2-Bolt
  • Angled Bolts
  • $224.99
    Ships

    697-11153
    Main Cap
  • Small Block Chevy 350
  • 2-Bolt
  • Front Cap
  • $101.99
    Order Today Ships 09/25/14

    697-11160
    Main Caps
  • Small Block Chevy 350
  • 4-Bolt
  • Angled Bolts
  • $255.99
    Order Today Ships 09/25/14

    697-11165
    Main Caps
  • Small Block Chevy 350
  • Factory 4 Bolt
  • Straight Bolts
  • $255.99
    Order Today Ships 09/22/14

    697-11170
    Main Caps
  • Small Block Chevy 350/400
  • Angled Bolts
  • $295.99
    Order Today Ships 10/06/14

    697-11180
    Main Caps
  • Small Block Chevy 400
  • 2 or 4 Bolt
  • Angled Bolts
  • $255.99
    Order Today Ships 09/25/14

    697-81128
    Main Cap Bolts
  • Small Block Chevy
  • With Milodon Main Caps
  • For use without windage tray
  • $83.99
    Order Today Ships 09/25/14

    697-81129
    Main Cap Bolts
  • Small Block Chevy
  • With Milodon Main Caps
  • For use with windage tray
  • $112.99
    Order Today Ships 09/25/14
    Big Block Chevy

    697-11200
    Main Caps
  • Big Block Chevy 396-454
  • 2 or 4 Bolt
  • Angled Bolts
  • $242.99
    Order Today Ships 09/29/14

    697-11205
    Main Caps
  • Big Block Chevy 396-454
  • Straight Bolts
  • $267.99
    Order Today Ships 09/25/14
    Small Block Chrysler

    697-11300
    Main Caps
  • Small Block Chrysler 318-340
  • Angled Bolts
  • $346.99
    Order Today Ships 10/03/14
    Big Block Chrysler

    697-11310
    Main Cap Bolts
  • Big Block Chrysler 360
  • Angled Bolts
  • $346.99
    Order Today Ships 10/03/14

    697-11361
    Main Caps
  • Big Block Chrysler 383-440
  • Straight Bolts
  • 3 Cap Set
  • $318.99
    Order Today Ships 09/25/14

    697-11362
    Main Caps
  • Big Block Chrysler 383-440
  • Straight Bolts
  • 5 Cap Set
  • $487.99
    Order Today Ships 09/25/14

    697-11365
    Main Caps
  • Big Block Chrysler 383-440
  • Straight Bolts
  • 2 Bolt
  • 5 Cap Set
  • $487.99
    Order Today Ships 09/25/14
    Ford

    697-11420
    Main Caps
  • Ford 351W
  • Angled Bolts
  • $346.99
    Order Today Ships 09/25/14

    697-11450
    Main Caps
  • Ford 429-460
  • Angled Bolts
  • $346.99
    Ships
    Pontiac

    697-11505
    Main Caps
  • Pontiac 350-400
  • 4 Bolt
  • Straight Bolts
  • $346.99
    Order Today Ships 09/25/14

    19 Products