BTR Max Effort N/A Camshaft For LS3 427 or Larger Stroker Engines - 3-Bolt 

BTR camshafts are engineered for outstanding performance and drivability. Brian Tooley Racing provides a wide range of camshafts and configurations tailored for various truck and car applications. Whether your project involves turbocharged, supercharged, or naturally aspirated setups, BTR offers numerous grind options, all supported by years of expertise, knowledge, and a dedication to power.

Introducing the new 427+MAXNA cam from BTR. This cam is not for the weak at heart. Intended for use as a MAX EFFORT NA style cam, we recommend using this in 427 and larger engines with a high compression ratio, heavily ported cylinder heads, and an aftermarket throttle body/intake combo such as our Trinity series or CID style manifold. This camshaft @ 434" CID and 14-1 compression ratio, AFR LS3 heads, and a CID intake with a vacuum pump on C12 fuel ran 5.50's @ 123.5 N/A in the 1/8 mile @ 2800 Twin Screw.

Note: Due to the aggressive nature and high valve lift of this camshaft, it is recommended for DRAG RACE USE ONLY!