Product details:
Summit Racing SUM-G6700: Gear Drive, Noisy, Dual Idler, Chevy, Small Block, Kit - Our Summit gear drives are great for you folks who want better timing and a choice of noisy or quiet operation. Their dual-idler design has CNC-machined components and they are easy to install. Each set comes with a pressed-in Torrington bearing or an SAE 660 bronze thrust washer (varies by application), as well as a cam gear that allows for timing adjustments in two-degree increments. These drives fit under your stock timing cover and come complete with instructions. Minor machining is required on models with the bronze thrust washer. SUM-G6700 fits these applications: CHEVROLET 6.6L/400 Chevy small block Gen I, CHEVROLET 5.7L/350 Chevy small block Gen I, CHEVROLET 5.4L/327 Chevy small block Gen I, CHEVROLET 5.0L/307 Chevy small block Gen I, CHEVROLET 5.0L/305 Chevy small block Gen I, CHEVROLET 5.0L/302 Chevy small block Gen I, CHEVROLET 4.6L/283 Chevy small block Gen I, CHEVROLET 4.4L/267 Chevy small block Gen I, CHEVROLET 4.3L/265 Chevy small block Gen I, CHEVROLET 4.3L/262 Chevy small block Gen I.