Steel duplex timing gear kit for +.005 line bored block

Description

Ultra light "adjustable" steel duplex timing gear and chain set. The innovative 'multi-keyway' sprocket means that you can easily adjust timing in 2 degree increments. The matched paired spockets give precise chain fitment.
General: Camshaft Drive Systems
See AEA587 for new counter-sunk screws)
The line boring of motors is becoming increasing necessay as engines age and as the demands on them continue to rise. And while this process does provide a lot of needed benifits, the only downside is that it moves the crank closer to the camshaft which means that even a new sets of gears and chain will not be tight enough to accurately control camshaft timing. These special gear kits are designed with very slightly oversized gears to compensate for this distoration. Available in different increments to accomodates various line bores.