Speedmaster PCE264.1020 Double Roller 2Pc Adj Steel Timing for Chevy BBC

Chevy BBC 454 Double Roller 2pc Adj Billet Steel Timing Chain Kit Speedmaster Easy-just Timing Chain Set allows you advance or retard your timing 6" without having to remove your valve covers or having to back off your rocker arms. Exact Radial run out tolerance insures your timing adjustments are accurate. Features a billet cam and crank sprocket. The crank sprocket is also heat treated for additional strength. Heavy-Duty roller chain and one-piece roller thrust bearing assembly insure smooth operation. CNC Machined from billet Engineered for accurate, consistent timing, faster acceleration and top-speed performance