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MMX 392 HEMI 5.7L Based Stroker Kits by Modern Muscle Performance


SKU: MMP-57L-392STRKR Category:


Here it is folks, these kits contain a proprietary designed MAHLE 2618 piston with Molnar crankshaft and rods as a balanced assembly. These kits are available in various stroke and rod length configurations to meet your engine package requirements. Whether its NA, high boost, or spray we have the parts to complete your build.
MMX 392 Stroker Rotating assembly includes:
  • Molnar 4.00 Stroke Crankshaft
  • Molnar 6.175 connecting rod
  • Mahle 3.927 Custom Stroker Piston (3.947 available)
  • Tool Steel Pins Standard
The kit design features include:
  • 2618 Aluminum Alloy Forgings
  • 1mm 1mm, 2mm Exclusive Steel Ring Package
  • Napier Second Ring for Enhanced Oil Control
  • Grafal Anti-Friction Coating on Skirts
  • Anodized Top Ring Land
  • Inverted Dome Designed by Modern Muscle Performance
  • Accumulator Groove – a V shaped groove machined in the 2nd ring land to collect excess blow-by between the top and second ring. This groove collects residual gasses during combustion and alleviates top ring flutter while increasing ring seal.
  • Molnar Premium Alloy Rods Featuring 7/16 Proprietary Design ARP2000 Bolts
  • Molnar Premium Alloy Full Radius Crank Shaft – Precision Balanced In-House by Molnar Technologies
  • Optional DLC Pin Available (Diamond Like Coating for increased surface hardness and lower friction)


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