BTR 400+ SMALL TWIN TURBO CAMSHAFT
BTR 5.3 STOCK BLOCK MAX EFFORT TURBO CAMSHAFT
23X/25X, .614"/.614", 113.5 LSA
The BTR 5.3 MAX EFFORT hydraulic roller turbo cam represents peak performance engineering for serious small-block builders. This camshaft has demonstrated exceptional capability, producing 1650-1700 rwhp in stock-block applications when paired with BTR boost-ready 10.5:1 forged pistons, TFS 220 cylinder heads, SK703 spring kit, Johnson ST2126LSR lifters, and shaft rocker arms. The combination has established itself among the world's quickest stock-block 1/8-mile platforms, achieving 4.20-second passes at speeds exceeding 170mph with 98-102mm turbo configurations. Purpose-built for maximum effort turbo applications, this cam delivers the aggressive valve timing and lift characteristics required for extreme boost environments and competition-level power outputs.
