Manley Forged H-Beam Rods

(7 reviews) Write a Review
$511.68 $439.00
(You save $72.68)

Manley Performance manufactures the finest steel connecting rods in the Sport Compact industry. Our Pro Series "I" Beam is forged from 4340 aircraft quality vacuum degassed material. We utilize our proven "Turbo Tuff" design and add 3/8" ARP 2000 cap screws. All rods are properly shot peened after machining and 100% magnafluxed.

"H" Beam - Economical
For the budget conscious enthusiast, we also offer our very high quality, yet economical, H-Beam design connecting rods. These are also manufactured from 4340 alloy forgings. They are fully machined, heat treated, stress relieved, shot peened, and magnafluxed. They also are built standard with 3/8" ARP 2000 bolts.

All Manley connecting rod sets, are weight matched to ± 1.5 grams, big and small end bores are final honed to a tolerance of ± .0002", critical bend and twist attributes are held to a minimum, and exacting attention is paid to every detail by our final inspection department; thus rendering a finished product that is second to none.

Compatibility: 90-05 Miata 1.6L and 1.8L

7 Reviews

  • 5
    Forged 4cyl

    Posted by Jocko on May 28th 2019

    Recently Bought the Manley Forged H Beams for my Miata block. Had them professionally installed and my tech was amazed at the quality of the product. Block had to be modified for clearance but he was happy and I will see how happy I am once the motor is fully assembled!

  • 5
    Jesse Boey

    Posted by Jesse Boey on Jul 2nd 2018

    Jesse Boey

  • 5
    Great product

    Posted by Rigoberto G on Jun 13th 2018

    Manley rods look amazing, would recommend a friend to buy

  • 5
    best bang for the buck

    Posted by steven on Nov 9th 2017

    These Manley rods are perfect. They are a very well made forged rod, they have a nice finish to them with the exception of a couple sharp edges. Which can be easily sanded smooth by hand. They are perfectly balanced with the big and little end weights of each rod written on the individual boxes. The little ends were all within 0.1 grams and the big ends all within 0.6 grams. I prefer the balance my rotating assembly within 0.5 grams but these rods are so close its not even worth the time, I'll just throw the heavier piston/ring/wrist pin assembly on the lightest rod and call it a day. The brass bushings on the little ends are All burr free and perfectly polished. All in all these rods are perfect.

  • 5
    Can't go wrong with these forged rods!

    Posted by Chase Choi on Jul 3rd 2017

    If you want to feel safe when making more than 260hp at the rear wheels, I highly recommend you to get this Manley H-beam forged rods.

    I bought Manley H-beam forged rods at Fab9Tuning because of three reasons: quality of the product, best price, and great customer service.

    I would buy these again.

  • 5
    Best quality for the money.

    Posted by John Eisele on Oct 18th 2016

    I was very impressed with these rods. Each one comes in its own box with exact bore diameter marked on the box. Very well packaged and manufactured. Compared to other brands like Eagle, quality is very close. Cost is amazing. They even use ARP 2000 bolts. Time will tell as far as longevity is concerned, i plan on putting these to the test.

  • 5
    Great Product

    Posted by Lawrence L-Dean on Aug 24th 2015

    Can't beat the price on these. They do the job perfectly. :D