Brian Tooley Racing

When you are building an LS or LT engine properly, valvetrain selection is not an afterthought. It is the mechanical core of how the engine breathes, how it behaves, and how long it survives under load. That is precisely where Brian Tooley Racing has built its reputation.

Brian Tooley Racing, widely known as BTR, has become a benchmark name in modern GM V8 performance. From street-driven 5.3 builds to high-compression 6.2 track cars and serious boosted combinations, BTR components are engineered to deliver repeatable performance without compromise on durability.

At Billy’s Speed Shop, we now stock the full Brian Tooley Racing range, covering:

• LS and LT camshafts

• Cam kits including springs, pushrods and retainers

• Dual and beehive valve spring sets

• Pushrods and trunnion upgrade kits

• Timing sets and valvetrain hardware

• Cylinder head and supporting components

Designed for Real-World Performance

A camshaft is not just about lift and duration figures on paper. It determines drivability, idle quality, torque delivery and how the engine carries power across the rev range. BTR profiles are developed from extensive dyno testing and real vehicle validation, not theoretical modelling alone.

For UK builds in particular, where road use, emissions testing, and mixed driving conditions matter, component stability and predictable behaviour are critical. BTR’s cam packages are engineered to work as systems. Spring rates, lobe design and supporting hardware are selected to function together rather than as mismatched parts from different manufacturers.

That systems-based approach aligns perfectly with how we specify engines at Billy’s. Whether you are refreshing a street LS3, building a stroker for a track application, or assembling a turbocharged 5.3 for something entirely inappropriate, the valvetrain needs to be correct from day one.

Proven Across the LS and LT Platform

The LS architecture remains one of the most adaptable V8 platforms ever produced. From the early LS1 through to the LS3 and modern LT1 and LT4 engines, the underlying geometry lends itself to serious performance gains when the correct camshaft and supporting components are used.

Brian Tooley Racing has developed profiles for:

• Naturally aspirated street builds

• Aggressive NA combinations with increased compression

• Boosted applications including centrifugal, roots and turbocharged setups

• Truck engines requiring torque-biased characteristics

For customers building Godzilla or other Ford combinations, we continue to expand our offering. However, in the GM LS and LT world, BTR remains one of the most trusted names for valvetrain stability at higher RPM and cylinder pressures.

Why Buy Brian Tooley Racing from Billy’s Speed Shop?

Specification matters. A camshaft is not a standalone part. Piston to valve clearance, spring installed height, rocker geometry, lifter condition, and intended usage must all be considered.

When purchasing through Billy’s Speed Shop, you gain access not only to the product range but also to practical guidance on pairing components correctly. We understand UK vehicle constraints, and the reality of road-driven performance cars.

We also carry complementary components including crate engines, induction systems, ignition upgrades and supporting hardware, enabling you to build a coherent, reliable package rather than a collection of parts.

Build It Once. Build It Properly.

A poorly chosen cam can make a car difficult to drive, unpleasant in traffic, and unreliable at sustained RPM. The correct combination transforms the engine, delivering sharper throttle response, stronger mid-range torque and a defined top-end pull.

Brian Tooley Racing components are designed for builders who take that difference seriously.

Explore the full range below and select components with confidence.