Aftermarket rods

Greg Reimer 7376 · 02-15-2011, 09:24 PM

While looking at both some Manley legal stock eliminator rods and some other brand, probably Eagle, but I can't be sure, I compared a small journal 327 rod with a large journal rod.It seemed to me that they were the same forging,the difference seemed to be the final size of the big end. This led me to wonder-- would the small journal rod be stronger around the bearing than the large journal rod? Would it stay rounder at high RPM and less prone to bearing spinning? How about taking a large journal steel crank and turning the rods to the small journal size and leaving the mains at the large journal size? The weight difference would be probably offset by the decrease in the journal weight, I don't know because I haven't ever tried to build a motor like this. Any thoughts from some of you experienced motor heads?('>')

02-15-2011, 09:24 PM	#1
Greg Reimer 7376 VIP Member Join Date: Nov 2008 Location: Glendora,Calif. Posts: 1,132 Likes: 172 Liked 698 Times in 216 Posts	Aftermarket rods While looking at both some Manley legal stock eliminator rods and some other brand, probably Eagle, but I can't be sure, I compared a small journal 327 rod with a large journal rod.It seemed to me that they were the same forging,the difference seemed to be the final size of the big end. This led me to wonder-- would the small journal rod be stronger around the bearing than the large journal rod? Would it stay rounder at high RPM and less prone to bearing spinning? How about taking a large journal steel crank and turning the rods to the small journal size and leaving the mains at the large journal size? The weight difference would be probably offset by the decrease in the journal weight, I don't know because I haven't ever tried to build a motor like this. Any thoughts from some of you experienced motor heads?('>')