Author: maxeffort April 25, 2008 at 16:14:13 from 68.186.252.113 in reply to: Re: SBC Cams with a 4/7 firing order swap -- more HP? posted by Jim Honney on April 25, 2008 at 08:16:41
The real reason for 4/7 swap was in Pro-stock drag race engines. It doubled crankshaft life (less broken cranks). Especially on Big Block Fords. These are of course highly developed engines that turn very high RPM's at very high power levels. Everyone thought it was a power secret, but it is not. In most engines it has NO advantage.
Post Followup
Note: Follow-ups should only be used for information of interest to all viewers. For other inquiries or personal communication please send an email if possible or use other contact information provided.
When you return to the board you will need to do a REFRESH or RELOAD to see your followup.
