Our forged H-beam, upgraded I-beam, and billet I-beam connecting rods will cover everything from basic 600 HP builds to 1,500 HP forced induction setups! This is from a post below. On the other hand, if you are going to spend your time racing with high horsepower and lots of abuse, then go H-beam. This comes up every now and then over at Speed Talk: Interviews - Racing Books - Racing Forum , where several top, top engine builders post, and the best consensus I can report from there is that "h beams may be better, but maybe not", so you won't get a simple answer with a simple geometric picture to explain it that covers the real world … If you notice, the vast majority of very high quaility race rods, Oliver, Crower, etc, are I-beam style. "Yes I did ask about I beam vs H beam rods. Many people have argued that H-Beam rods are not any better and are a waste of money, and their number 1 argument is that you'll never see an Our selection of connecting rods will cover nearly every engine build from 300 horsepower street engines to 2000 plus horsepower race engine applications. H-beam vs I-beam (The differences and applications) ① The moment of inertia of the section is quite different because the cross section size of I-beam is relatively high and narrow, no matter it’s ordinary I -beam or light-duty I beam. Related. 354th run switched to Alky, 355th run one rod broke in the lights The H beams are heavier then the I beam rods and piston weight will be an issue depending on wether or not you need to add heavy metal to the crank to balance it correctly. The metal increase can be wider flanges (typical for a structural H-beam compared to an I-beam) or thicker flanges. Anyways, to be honest we use both I and H beam construted items. Well, let me clarify that a bit, an I-Beam rod can resist bending about the same as an H-Beam, but the H-Beam can do it with less weight. The discussion came up last week over on the Corvette Forum about I-Beam rods vs H-Beam rods, and which is better. so my question is, out of the two which one should I get? I was thinking I could spend a little more on rods (if I needed to), & possibly upgrade heads later. Microlam Beam Weight I have always thought that H beam rods were stronger, as they are usually higher in price, but according to this guy the I beams are stronger. Without getting into alot of technical talk, the 5140 rods are good to 550 hp, and the 4340 rods are good to around 800 hp. If two rods weight the same an I-beam rod will be stronger than an H-beam rod. ill be pushing maybe 500 HP. * H beam is more heavier (it means it takes more force than I beam ) than I beam. Re: Connecting rods test again H-BEAM vs I-BEAM Post by Walter R. Malik » Sat Sep 28, 2013 7:41 pm astra_turbo wrote: Then this test can not assume how strong rods and how much horsepower will last. trmnatr. So, by using I-Beam rods, your engine can rev quicker, and you will have the capability to increase the HP later on, without worrying about the rods being strong enough to handle the extra HP. •I-beam: I-beams have top and bottom flanges, and they are shorter and are not as wide as H-beams. Post subject: Re: Rods: H beam vs I beam. Real Race Cars Don't Have Doors. Depending on the material, you would want at least .900-inch of thickness in that area. Manley Performance . Manley Performance’s Tri-Beam rod design goes a step beyond simply H-beam or I-beam rods, in order to withstand the harshest applications. H-Beam vs I-Beam: Center Web. Manley h beam connecting rods sbc 6 000 14054r 8 eagle rods h beam vs i honda tech forum molnar power adder 4 6 5 0 coyote billet h beam rods small block chevy 4340 steel h beam rods bushed pin new manley h tuff rods pared to other nasioc. If you have a turbo engine, the I-beam is a BETTER choice, as long as you don't exceed 7500 RPM. Like anything in an engine, it's not absolutely always straight forward and … I-beam: With some buildings where weight and force on a wall may pose a structural issue, the I-beam may be better since it is often lighter. Re: Eagle H-Beam vs Scat I-Beam… I'm going to use a Scat forged rotating assembly, but I don't know if I should run I-beam or H-beam connecting rods. "With an H-beam rod you should look at the thickness of the blades; basically, the H-beam itself where the slot is cut out. But I am thinking I can do what I want with a set of 6" I beam rods. See the images of both beams… H Beam I Beam Difference : * H beam has thicker centre web (it means it is stronger than I beam) than I beam. About the author Greg Acosta . I-beam rods are typically preferred for a normally aspirated application where the tensile loads are the biggest concern. You can get lightweight I-beams as well. Lunati X-Beam LS/LT Rods 80361252-8 - 6.125" x 2.100" x .927" Lunati X-Beam Connecting Rods have an improved strength to weight ratio due to their unique design that combines the best features of I-Beam and H-Beam style connecting rods. It's not just H-beam vs. I-beam. Top. Both r forged 4340 and the I beam is about $118 less. Related Posts. The FEA analysis looks good, but there's many more variables in there. I beam rods are much cheaper to make than H beams. That is not to say that there are not I-beam rods with sufficient strength for a big power turbo application but I am saying that this strength is achieved at a weight penalty in comparison to a well-designed H-beam rod. H beams tend to have a bigger shoulder where the beams meet the base near the bolt holes. mach 2 with my hair on fire: Joined: Wed Oct 31, 2007 4:47 am Posts: 1156 Location: North Beach, MD I will say this, the big guys use Pankl rods, Carrillo, Oliver, etc., and most of those rods are I-beam and A-beam designs. H-beam rods are better for high RPM then I-beam rods are, though I-beams are fine to 7500. Posted: Thu Oct 21, 2010 8:10 pm . What HP are the rods you are looking at made to withstand?In N/A the H beam seems to be favoured.Why The I beam in forced induction:confused:Thanks great info Kevin Email me . I thought it would make for good discussion in its own thread. H-Beam vs I-Beam: Weight. For an H-Beam to catch up to the compression strength of an otherwise comparable I-Beam, the H-Beam would need to be FAR heavier than the lighter, stronger and more efficient I-Beam design. of an H-Beam rod helps them resist bending more than an I-Beam design. $350 vs $200 for rods is a little different than $1500 vs … With the flat top pistons and TrickFlow 205 11Rs w/66cc combustion chambers I figured I'd run in the range of 11-11.5:1 CR (also having a custom one-off cam ground). Im looking into rods and I have found 2 sets from Scat. One is an I-Beam and the other is an H-Beam. I beam vs H beam Are you just looking at the physical design of the rods or actual part numbers? •H-beam: H-beams have top and bottom flanges that stick out further from the web than the flanges on I-beams. What I mean is an I beam design like the Olivers is really a little better in theory all other things being faily equal but you can't compare a stock or cheapie I beam to a good H beam. Number of Pieces • The H beam looks like a piece of metal but has a chamfer in which three pieces of metal come together. I beam vs H beam Built Motor Discussion. H-beam connecting rods have some additional things you want to look at before you pull the trigger on a set, according to Norris. I would put a base model Scat I-beam rod against a "Hawk Racing" H-beam any day. Check out Texas Speed & Performance’s complete line of 6.125” connecting rods for GM LS and Gen 5 LT applications. Looking on ebay, I see a lot of different rods for 4.6 modular motors. https://www.manleyperformance.com (732) 905-3366. For an H-Beam to catch up to the compression strength of an otherwise comparable I-Beam, the H-Beam would need to be FAR heavier than the lighter, stronger and more efficient I-Beam design. This all came about after a 632 Mountain Motor coughed a Carillo H-Beam rod and EXPLODED on a chassis dyno. Shop our I-Beam and H-Beam connecting rod selection for domestic V8 and Import engines today. The brand plays into it. Obviously, for a stock displacement 4.6, the 5.933 length rods are the ones to get. It depends ofcourse on the specific engine, H, V, I, etc along with bores and strokes, for example, some of the inline fours we developed have cylinder walls not capable of withstanding increased bores … Typically the 4340 H-beam design is a bit heavier than an 4340 I or A-beam design- all have been proven to handle over 800 hp. There is no reason for the caps to be different due to beam design. H-beam: The H-beam is often a lot heavier than the I-beam, which means it can take more force. So, unless you're going to be mostly racing, I-beams are just fine. I have never seen FJ rods in particular so I can only comment in general and from what is published on their site. Article Sources. I know an engine that ran Eagle H Beam rods running 8.0's @ 3400 pounds race weight 353 runs on the engine, 1 rebuild, no new bolts which was crazy. However, the gap has closed and today's I-beam rods are nearly on par with H-beams. Connecting Rods. I don't know the difference between H-beam and I-beam rods, but from an engineering standpoint, putting more metal away from the centerline increases bending stiffness. I Beam Vs H Rods Sbf December 17, 2020 - by Arfan - Leave a Comment Connecting rods pauter right connecting rods molnar h beam connecting rods sbf 6 000 sbf eagle sir5090fp 5 090 press fit ford 302 small block v8 connecting rods I-beams are stronger in compression then H-beam rods (boost), but weaker in tensile strength (stretching from RPM). So, by using I-Beam rods, you will have the capability to increase the HP later on, without worrying about the rods being strong enough to handle the extra HP. 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