When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have an H23A1 I just bought new Pistons, connecting rods and wrist pins. I cannot find what keeps the wrist pins in the piston. Can someone help? Please This is what I have but nothing to lock the wrist pin into the piston.
That's because those pistons are press fit pins and the rods are floating pin. They do not work together. OEM pistons do not work with aftermarket connecting rods. You will need to use OEM rods with the OEM pistons and have a machine shop fit them together. OR sleeve the engine and use aftermarket pistons.
That's because those pistons are press fit pins and the rods are floating pin. They do not work together. OEM pistons do not work with aftermarket connecting rods. You will need to use OEM rods with the OEM pistons and have a machine shop fit them together. OR sleeve the engine and use aftermarket pistons.
The Pistons are aftermarket JDS Pistons. The connecting rods are Eagle H beam. I'm not using anything out of the original H23A1. The pins can't be press fit because I can slide them all the way into the rod and piston by hand.
Last edited by Wagovan_Man; Jan 19, 2022 at 04:11 PM.
Reason: Needed to add more
They are OEM style castings. Same difference. The pins press fit into the OEM rods, not the pistons. There is no groove for a pin lock because those pistons are not designed to be used with a floating pin. If you want to use those forged rods and benefit from them, you will have to sleeve the block and run aftermarket forged pistons. Take the lot of it to a machine shop and they will tell you the same thing. Source: 17 years an H/F enthusiast, 5 years machine shop experience, and over 20 engines personally assembled.
thank you Aradin, & everyone else that answered. I appreciate the help. If you were to recommend a good but not super expensive piston to work with those Eagle rods. What would you recommend?
It's not just the pistons you need, but the block would have to be sleeved as well. You're looking at $2000 easy for that. There's a reason not many people build H series anymore. There are forged pistons, called Mahle Golds, that work with the factory sleeves and forged rods but unless you can find a machine shop willing to work with FRM sleeves it will end in disaster as it has on so many other builds.
So what you're saying is I'm better off buying factory style rods to go with my factory cast Pistons. And just rebuild the motor basically stock... Right?
Last edited by Wagovan_Man; Jan 23, 2022 at 05:56 PM.
Reason: Misspellings
New piston question.
