In-House Builds

Porsche 987 Cayman & Boxster LS3 Conversions

Cayman and 987-chassis LS swaps with structured engineering—from first consult to keys in hand.

We Specialize in Porsche 987 Cayman LS3 Conversions

The Porsche 987 Cayman and 987 Boxster share a rigid mid-engine platform that responds exceptionally well to a properly executed 987 LS swap. Chavis Performance & Engineering engineers each Cayman LS conversion for heat management, service access, and the power level you target—whether that is a responsive street car or a consistent track machine.

Our in-house program in Baltimore, Maryland covers consultation, fabrication, full installation, and calibration. Many owners also order LS conversion kits and components for home or regional assembly while leaning on CPE for engineering questions—both paths reflect the same design philosophy.

Considering a 987 Boxster LS conversion instead of a coupe? The same core systems apply; we adjust packaging and bracing discussion for roadster duty. Browse 986 Boxster, 996/997 911, and 964/993 in-house pages to compare platforms.

Professional Porsche 987 Cayman LS3 Conversion Services

Structured services for Cayman and 987 Boxster—from LS3 packaging through delivery and beyond.

987 Cayman & Boxster LS3 Conversions

Turnkey LS3 integration for Porsche 987 Cayman and 987 Boxster—coupe or roadster—with engineering focused on mid-engine balance, cooling, and daily drivability.

Track & Street Calibration

Powertrain and chassis priorities differ for HPDE versus daily use; we tune scope and component spec to your intended mileage and event calendar.

Driveline & Manual Integration

Match LS output to gearbox choice; we coordinate with our manual conversion program when upgrading shifter feel and clutch systems.

Aero & Appearance Upgrades

Pair mechanical performance with custom Porsche aero kits—splitters, wings, and widebody options installed in the same workflow when desired.

CPE Parts & DIY Support

Builders nationwide rely on Porsche LS conversion parts from the same team that completes in-house 987 installs.

Service After the Swap

Long-term Porsche service and repairs for LS-powered 987 cars, including seasonal checks and track prep.

The Process

How We Work

Consultation & Planning

987 coupe or Boxster: we align engine choice, transmission, and budget with how you use the car.

Engine & Packaging

LS fitment optimized for Cayman/987 engine bay and heat rejection.

Fabrication & Systems

Mounts, cooling, fuel, exhaust, and wiring built for repeatable quality.

In-House Installation

Complete assembly and calibration support in our facility.

Delivery

Final inspection, road test, and walkthrough before you take delivery.

Reasons To Choose Chavis Performance & Engineering

CPE is built around Porsche LS engineering—not generic engine swaps—with 987 Cayman and Boxster as core in-house platforms.

Deep focus on Porsche 987 Cayman LS conversion and 987 Boxster—shared chassis logic with distinct body and use-case priorities.
Precision fabrication and U.S.-built CPE hardware where it improves repeatability on 987 LS projects.
Single point of contact from quote through delivery, aligned with our Porsche LS conversion standards across all platforms.
Transparent discussion of budget, timeline, and LS3-based power goals before work begins.
Cross-platform knowledge: lessons from 996/997 and 986 programs inform every 987 build.
Baltimore-based shop with nationwide parts shipping and remote technical support for qualified DIY installers.
Commitment to craftsmanship and reliability—performance without sacrificing the drivability that makes Porsche chassis special.
Easy handoff to FAQ and contact channels for follow-up questions after your build is complete.