Originally posted by LONGBOX55:
None of the Nascar engines run a gear drive. Because the metal to metal friction between the gears of a gear drive don't provide enough give for a chromemoly crank. Remember that even though a chromemoly crank is stronger the a cast or factory Chevy forged crank, it is also more brittle. I will choolse to use a chain and not risk snapping the end off or cracking my crank. The guys that are making lots of HP will even opt for a belt system over a true roller chain. I figure if a Nascar engine (and sprint car) will live with chain, then so will my 4340 crank. So like Longbox55 suggest, stay with a chain.
Admin for Turbobuick.com
87 GN, and new toy: 1955 Chevy 3200 pickup, soon to have: 383, Cola crank, Childs/Albert 6 inch rods, Brownfield heads, 10:1 KB hypers, CompCam 284 Extreme Energy, Tilton Plate transmission realignment and built Turbo400.
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