The VAC NA S65 476HP Engine Package is a fully engineered, naturally aspirated BMW S65 V8 build designed for drivers who want maximum response, durability, and real-world performance--without forced induction.
Built using VAC Motorsports' in-house machining, proven components, and decades of BMW engine-building experience, this package delivers repeatable power on pump gas with OEM-level reliability and motorsport-grade internals.
ENGINE PACKAGE HIGHLIGHTS
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476 HP Naturally Aspirated on pump gas
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Precision-machined sleeved block
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Forged rotating assembly
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VAC Stage 1 performance cylinder heads
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Built, balanced, and assembled by VAC Motorsports
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Designed for street, track, and endurance use
WHAT'S INCLUDED - DETAILED LINE ITEMS
BLOCK, ROTATING ASSEMBLY & INTERNALS
VAC-FCS-S65-G1
VAC Flanged Cylinder Sleeve Set - S65 (92-92.5mm)
Precision flanged sleeves installed for strength, stability, and long-term durability.
$1,439.95
CP-FPS-S65-92.5-12
CP Forged Piston Set - S65, 92.5mm, 12:1 Compression
Forged pistons optimized for NA performance and pump gas operation.
$1,799.95
CP-U-Coat-Skirt
CP Teflon Skirt Coating (8 pistons)
Reduces friction, improves cold-start wear resistance, and enhances longevity.
$320.00
SP-CRS-S65
SP Connecting Rod Set - S65, Standard Length
High-strength forged rods designed for sustained high-RPM operation.
$1,599.95
VAC-HPMBS-S65
VAC High Performance Main Bearing Set - S65
Optimized bearing clearances for performance and reliability.
$599.95
VAC-HPRBS-S65-X
VAC High Performance Rod Bearing Set - S65 (Extra Clearance)
Designed for high-load, high-RPM NA builds.
$559.95
FASTENERS, GASKETS & TIMING COMPONENTS
ARP-HSK-S65
ARP Head Stud Kit - S65
Increased clamping force and long-term head sealing.
$359.95
RWE-MSK-S65
Raceware Main Stud Kit - BMW S65
Improves bottom-end rigidity under load.
$459.95
VAC-HG-S65-93030
VAC MLS Head Gaskets - S65, 93mm x .030" (2 required)
Multi-layer steel gaskets engineered for performance builds.
$379.90
BMW-HGS-S65
OEM BMW Head Gasket Set (excluding head gaskets)
Includes valve cover, timing, and ancillary gaskets.
$684.95
BMW-CGS-S65-OE
OEM BMW Crankcase Gasket Set - S65
Complete OEM sealing solution for bottom end assembly.
$331.95
BMW-11-31-7-838-869
BMW S65 Timing Chain Tensioner Rails (2)
$103.90
BMW-11-31-7-839-053
BMW S65 Timing Chain Tensioners (2)
$269.90
BMW-11-36-7-840-998
BMW S65 VANOS Sprocket Bolts (4)
$79.80
BMW-83-19-0-439-030
BMW Liquid Sealant - S65 Oil Pan
$81.00
CYLINDER HEADS & MACHINING
VAC-S1PCH-S65
VAC Stage 1 Performance Cylinder Heads - S65
CNC-ported for increased airflow while maintaining street reliability.
$2,100.00
VAC-HPVG-S65
VAC High Performance Valve Guides - S65 (32)
Improved wear characteristics and valve stability.
$382.40
LAB-11-SB-S65
VAC Motorsports Sleeving Service - BMW S65
Complete block machining and sleeve installation performed in-house.
$3,400.00
LABOR & ASSEMBLY
LAB-11-CER-8-4V
BMW "All Aluminum" V8 Engine Rebuild Labor
Includes full teardown, inspection, machining prep, rotating assembly, head installation, timing, and final assembly.
$8,995.00
LAB-11-BC-V-8
Crankshaft Balancing - V8
Precision balancing for smooth, high-RPM operation.
$499.95
CREDITS & ADJUSTMENTS (APPLIED)
TOTAL ENGINE PACKAGE INVESTMENT
$21,589.03
(Naturally Aspirated undefined Pump Gas undefined 476 HP)
Sales tax not included. Pricing subject to change based on configuration or optional upgrades.
WHO THIS PACKAGE IS FOR
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BMW E9X M3 owners seeking maximum NA performance
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Track-day and HPDE drivers
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Enthusiasts who value throttle response and reliability
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Customers who want VAC-level machining and assembly--not shortcuts
OPTIONAL UPGRADES
Ask a VAC engine specialist for custom configurations.
CALL TO ACTION
READY TO BUILD YOUR S65 THE RIGHT WAY?
Contact VAC Motorsports to discuss lead time, options, and scheduling.
Built in-house. Proven on track. Trusted worldwide.
Our engines are winning races in SCCA, NASA & BMW CCA Club Racing, and also rally, hill climb and vintage racing around the world because they last!
The secret is our experience, attention to detail, and in-house developed & manufactured products like our VAC Oil Pump Upgrade Kits, which eliminate all failure points permanently while retaining serviceability.
Interested in a VAC Engine build? Check out our Engine Rebuild Page.