Expertly Designed with the aid of a Formula-1 engineer from the
finest materials and manufacturing techniques. Our Spring Kits are
guaranteed to out perform the competitions.
Our complete kit includes all the
springs, retainers, and seats you will need to install a
performance or race camshaft set into your M50 family engine.
Retainers in this kit are designed to perfectly accommodate our
unique springs that control harmonic resonance and various profile
cams in stride.
VAC Steel Alloy retainers work perfect wether
competitively racing or daily driving. They offer excellent weight
reduction Vs. stock retainers, and are extremely strong. This is
the choice for a street car, or an owner that wants to go multiple
seasons or years without opening the engine for inspection or tear
down.
VAC Titanium Retainers offer an extremely light weight
choice for racers that are determined to maximize performance down
to each gram of the valvetrain. Ideal for very high RPM extreme
race & sprint use.
When do you want to select Ti retainers? A good indicator is when
you plan to switch to solid lifters or are building an all out race
engine that will be regularly inspected.
These kits have worked flawlessly with every camshaft we have
ever installed, including those from Schrick, VAC, Sunbelt, Cat,
and others.
From the reliable and winning results of thousands of our spring
assembles, we can say confidently this represents the best set
available for your BMW at any price.
Please note that because we engineered this set from a clean
design; springs retainers and seats are all sold together as the
superior dual spring arrangement must be used with the correct
retainers and seats together and are not compatible with OEM
seats/retainers, therefore springs are not available separately
other than for replacements.
This kit features:
- 24 VAC dual-interference spring capable of extreme 12,000 RPM
for that added piece of mind (Racing, Over-rev/Mis-shift, etc)
- 24 VAC Titanium or Hardened Steel Alloy Valve Retainers
- 24 VAC Spring Seats (not shown)
- Made in the USA
- Compatible with all currently available performance camshafts
for the M50/ M52/ S50 US / S52 US engine.
Keep us in mind for your building needs. At VAC Motorsports we are
a full engine machine shop and can provide any race and machining
services you require.
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