Mixing bearings for clearance

Alan Roehrich · 03-19-2010, 12:44 PM

I've put in at least a couple hundred sets of Eagle rods. The only rods I've seen broke were rods that were in cylinders that had the entire cylinder wall collapse. The rods were bent nearly double before anything broke. And those were the I-beam rods. I've never had a broken Eagle H-beam rod, in anything I've built personally (and I've built plenty with them), although I know some who have.

I know several guys better than me, with more horsepower than me, and turning more RPM than me, who use Eagle H-beam rods. We have Eagle H-beam rods in the iron 427, and a new set to go in the new iron 427. They are the Eagle 6.135" H-beam rod with L-19 bolts and the "ESP Armor" option. With a 750 gram piston assembly (counting the piston, rings, locks, spacers, and pins) and turning no less than 7800 on every pass, we've got no problems.

If Eagle has an H-beam rod that will fit, get the L-19 bolts and the ESP Armor option, and get them approved, they should do fine. I know guys with 9000 RPM 850HP Super Stock engines with Eagle H-beam rods with L-19 bolts in them. If they wanted, or felt they needed, an Oliver or a Crower, I know for sure they can afford them.

03-19-2010, 12:44 PM	#16
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,116 Likes: 1,573 Liked 1,832 Times in 415 Posts	Re: Mixing bearings for clearance I've put in at least a couple hundred sets of Eagle rods. The only rods I've seen broke were rods that were in cylinders that had the entire cylinder wall collapse. The rods were bent nearly double before anything broke. And those were the I-beam rods. I've never had a broken Eagle H-beam rod, in anything I've built personally (and I've built plenty with them), although I know some who have. I know several guys better than me, with more horsepower than me, and turning more RPM than me, who use Eagle H-beam rods. We have Eagle H-beam rods in the iron 427, and a new set to go in the new iron 427. They are the Eagle 6.135" H-beam rod with L-19 bolts and the "ESP Armor" option. With a 750 gram piston assembly (counting the piston, rings, locks, spacers, and pins) and turning no less than 7800 on every pass, we've got no problems. If Eagle has an H-beam rod that will fit, get the L-19 bolts and the ESP Armor option, and get them approved, they should do fine. I know guys with 9000 RPM 850HP Super Stock engines with Eagle H-beam rods with L-19 bolts in them. If they wanted, or felt they needed, an Oliver or a Crower, I know for sure they can afford them. __________________ Alan Roehrich 212A G/S