Well I dont know what the engine would think...however the stress/load in a boat motor is alot higher than the auto and the marine motor never gets a break unless ya come to an idle...its like driving up hill none stop...or even driving your car with the emergency brake on.
About the red line thing...what ya see on your in dash tach (auto) is conservative...I have no reservations about reving my 468 to 5500, and I'm sure it could take more rpm...but thats just for a few seconds. Now in a auto with a trans...I dont see any issues with droping the clutch at 6000+. And small Blocks seem to take higher rmps longer. It all boils down to the environment the motor is in, Marine/auto and also the condition that perticular motor is in.
If pushed to hard. Anything can and will blow...eventually, just a matter of time.
[ February 20, 2003, 11:17 AM: Message edited by: HammerDown ]