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VAC - S14 Stage 3 Performance Cylinder Head

$2949.95

Purchase VAC - S14 Stage 3 Performance Cylinder Head

VAC - S14 Stage 3 Performance Cylinder Head VAC's Stage 3 Performance Cylinder Heads are the ULTIMATE in cylinder head technology and performance, crafted with more than 50+ years experience in the racing field.

S14 E30 M3s with our standard Stage 3 cylinder heads and 2.5L Stroker Kit have made 330+ HP N/A! When fitted with all of our options, the latest revisions to our head design allows it to handily outperform both the Gruppe A and DTM heads by BMW.
We have spent many, many years on the dyno, the flow bench, and even more years though world-wide racing experience to achieve such excellent and reliable results, and we never ever stop improving our S14 technology.
Even though they are an extreme departure from stock, we have stage 3 heads for use on the ultimate street performance vehicle as well.

Our Stage 3 Cylinder Heads feature the following:

  • Complete Disassembly & Cleaning
  • Comprehensive Leak, Crack & Pressure Test
  • Inspect All Components For Irregular Wear
  • Our Superior Max Performance Multi-angle Intake, Radius Exhaust Valve Job Using Serdi Equipment
  • One-Piece High Performance Stainless Steel Valves, Balanced and Blueprinted (Standard or Oversized)
  • Unshrouding of Valves
  • Meticulous Port and Polish Work
  • Attention to Potential Hot-spot Areas and Chamfering
  • CC'ed and Chamber Reprofiling as Needed
  • All New VAC Uprated Valve Guides
  • Trueness Checked & Resurfaced Mating Surface
  • High Performance VAC Valve Springs, Balanced
  • Titanium Or Steel Alloy Valve Spring Retainers

    Everything above is a Flow-Bench and real world tested design

VAC Tech Tip:
A high performance engine works most efficiently with the broadest powerband when everything is designed to work together.
Stage 3 heads are VAC's pinnacle of R&D and this philosophy. NEW Option - CNC'd Combustion Chambers to DTM Spec - further unshrouding leads to more horsepower for 95mm Bore (or larger) engines

Purchase VAC - S14 Stage 3 Performance Cylinder Head

  • SKU: VAC-S3PCH-S14
  • Engine Tune: Street Use; Full Race Use; Turbocharger use
  • Retainer Type: Steel Alloy(Street or Race use); Titanium (Recomended for Race use only)
  • Engine Type: S14

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