BTR 400+ LS Big Turbo Camshaft
Brian Tooley Racing 400+ LS Big Turbo Camshaft for Gen III/IV LS 4-inch-stroke turbo combinations.
Fitment: Gen III/IV LS 4-inch-stroke applications using a GT55/GT57-based 98–106 mm single turbo. Intended for serious street/strip builds with supporting high-RPM valvetrain components.
BTR specifications: 239/26X, .618/.618 lift, 117 LSA. Three-bolt cam. Approx. 15 lb boxed; 24 × 3 × 3 in.
Compare: BTR 400+ LS Medium Turbo · BTR 400+ LS Small Twin Turbo · BTR 400+ LS Big Turbo
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