CLASS RACER FORUM - View Single Post - 1957 283/270hp dual quads drag testing on a 350

wheezer · 03-20-2010, 09:50 PM

I'd like to offer a belated update. Several findings as of March 2010. The piston ring seal went away on one cylinder (7) last Fall all the others went down too, maybe due to unknownly running with antifreeze in the oil one weekend. Add to that the valve spring pressure was insufficient for the roller cam I am using. After the engine is refreshed with roller ready heads and gapless total seal rings with a medium grit Sunnen hone finish I'll offer an actual performance update.

03-20-2010, 09:50 PM	#5
wheezer Junior Member Join Date: Sep 2009 Location: Dallas/FtWorth Posts: 13 Likes: 0 Liked 0 Times in 0 Posts	Re: 1957 283/270hp dual quads drag testing on a 350 I'd like to offer a belated update. Several findings as of March 2010. The piston ring seal went away on one cylinder (7) last Fall all the others went down too, maybe due to unknownly running with antifreeze in the oil one weekend. Add to that the valve spring pressure was insufficient for the roller cam I am using. After the engine is refreshed with roller ready heads and gapless total seal rings with a medium grit Sunnen hone finish I'll offer an actual performance update. Last edited by wheezer; 03-20-2010 at 09:53 PM.