Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds
Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds

Chrysler Hemi 5.7 / 6.2 Billet Main Cap Set – 5-Cap Strength Upgrade for Boosted Builds

$1,200.00
/
Tax included.

💪 Strengthen Your Hemi Bottom End — Built for Boost, RPM & High Power

Did you know that factory cast main caps in Gen III Hemis (5.7L, 6.1L 6.2L) often begin to fail around 700–800 HP (520–600 kW)? At this level, boosted and high-RPM builds risk cap walk, cracking, or block damage. If your Hemi is targeting this range or beyond, billet main caps are cheap insurance to protect your investment.

When chasing horsepower from a Chrysler Hemi 5.7L or 6.2L V8 — especially under boost or high RPM — the factory main caps can become a weak link. This 5-cap billet main cap set provides the strength, rigidity, and reliability needed for high-performance street, race, or boosted builds.

Precision CNC-machined from billet steel and zinc-coated for long-term protection, these caps are a direct upgrade engineered to eliminate cap walk and reduce bottom-end movement under load.

🔧 Key Features:

  • Full 5-cap set – replaces all factory Hemi main caps
  • Made from high-strength billet 4140 steel
  • Zinc-coated for superior corrosion resistance
  • Designed for line boring/honing after installation
  • Ideal for boosted, stroked, or high-RPM engine builds
  • Australian-made by Milton Engine Developments

📦 Fitment:

  • Chrysler Hemi 5.7L V8
  • Chrysler Hemi 6.1L V8
  • Chrysler Hemi 6.2L Hellcat / Demon V8
  • Suits performance applications in Dodge, Jeep, Ram, and Chrysler platforms using Gen III Hemi engines

🛠️ Installation Notes:

  • Line boring and honing is required after fitting
  • ARP main studs recommended for best performance
  • Must be installed by a qualified engine builder or machine shop

🇦🇺 Proudly Australian Made

Every set is engineered and precision-machined by Milton Engine Developments in South Australia — trusted by top engine builders across Australia and internationally.

⏱️ Time-Sensitive Build? Contact us before ordering to confirm lead times.
📩 Need Something Custom? We manufacture specialty engine parts — reach out for bespoke solutions.

Fast, Reliable Shipping

Choose from Standard or Express delivery at checkout — all orders are securely packed to protect your parts in transit.

Worldwide Service

Based outside Australia? Contact us before ordering and we’ll provide a tailored freight quote with the fastest, most cost-effective shipping options for your location.

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