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Brian Crower BC3931 Valve Spring and Titanium Retainer Kit

(2001-2005 Lexus IS300; 1992-2000 Lexus SC300; 1993-1998 Toyota Supra)

Part of: Brian Crower Valve Guides for Nissan

Other options in this family: Brian Crower BC3900 Brian Crower BC3935 Brian Crower BC3928 Brian Crower BC3921 Brian Crower BC3910

Manufacturer

Picture for manufacturer Brian Crower

Part Number

BC3931
12 reviews
Sale Price

$114.12

3 left at this price

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Usually delivered within 2 days

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No Hassle Returns

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Fitment guaranteed

Fitment guaranteed

Product Details

The Brian Crower BC3931 valve spring and titanium retainer kit is a precision-engineered valvetrain upgrade designed for high-performance engines operating at elevated RPMs. This system-matched kit combines premium valve springs with lightweight titanium retainers to deliver superior valve control, support aggressive camshaft profiles, and prevent valve float at extended engine speeds.

Valve Springs:

  • Manufactured from super clean chrome silicone alloy for exceptional durability
  • Proprietary processing procedures including chamfering and deburring ensure consistent spring pressures
  • Engineered to maintain tension and prevent valve float during high-RPM operation
  • Compatible with increased lift camshafts for enhanced performance

Titanium Retainers:

  • CNC machined from premium 6AL4V titanium bar stock to exacting tolerances
  • Approximately 40% lighter than OEM steel retainers, reducing valvetrain mass
  • Lower reciprocating weight enables higher RPM potential and improved throttle response
  • System-matched to work seamlessly with Brian Crower valve springs

This complete spring and retainer kit provides a critical upgrade for enthusiasts seeking improved valvetrain stability, extended RPM range, and the reliability needed for high-performance street and racing applications.

Products specifications

Fits

2001-2005 Lexus IS300; 1992-2000 Lexus SC300; 1993-1998 Toyota Supra

Position

Exhaust

Size

6.0mm

very good experience

So far so good... We will see when it comes in... And how long it takes

thanks for the service

Best price!

Perfect

Good

They were very fast on delivery. Price was great.

When searching for the accessory which I needed, I found Autoplicity offered it at the lowest price available. The item had a promotion for free shipping, which made the purchase even more enjoyable. Overall, a positive buying experience.

Easy to shop

Best prices, fast shipping, and product as described. I would definitely recommend Autoplicity.

Best price on the product I was looking for. Extremely fast shipping even with ground. Got my order out right away and it arrived very well packaged.

Best price I could find on line, shipped really fast. With how low the price is I was worried but everything came fast and it was the correct parts. This place really keeps the cost of racing down.

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