Forged Pistons on 1g rods

[96whgsx]

Does anybody know of any forged pistons that will fit directly on 1g rods without machining the rods? Thanks

 

[96whgsx]

Anybody?

I think I may have found something at http://www.diamondstarmotorsport.com/engineparts.shtml and I'm not sure what wrist pin diameters are other than just a measurement. Sorry for this kind of question, but I gotta start somewhere.

 

[TSIfreek]

Ross or wiesco are both the top favorite for the 4g63s. The 1g rods have pressed on pins they are not floating. I would recomend having your rods fully reconditioned with arp bolts and balanced. In order to install the pins on the rods the little ends need to be heated to to expand them and the pin just slips in and then when it cools the pressure holds the pin to the rod thats it.

 

[TSIfreek]

I forgot to add the 1g rods have a .827 pin so make sure you get them with the pistons. the 2gs are bigger and wont fit

 

[PSI_Tom]

Pretty much every off-the shelf forged piston kit for the 4G63 comes with pins that can be used in full-floating OR semi-floating (pressed in) applications. If you use aftermarket rods, you would end up using full-floating pins (which are about 10 times easier to work with, but that's besides the point). As long as you stick to the stock rods, any machine shop should be able to heat the rods and press out the pins and install the new ones.

Wiseco, Ross, JE, whatever, they'll all work just fine. I like and use Ross, though Wiseco would be my second choice.

 

[96whgsx]

Yeah, I was planning on building up my 6 bolt preferably with stock rods because the motor will never see anything larger than a 50 trim with full garrett setup. Or do you think I should go with some eagle rods with it? And what are the largest differences between Weisco and Ross. From what I'm getting, mating the rods and piston requires no boring out, correct? Thank you guys for replying so quickly. I'm pretty excited about actually working to get my motor built.

 

[PSI_Tom]

Ross pistons use a no-silicon alloy that requires less cylinder-wall clearnace, so they don't slap on cold start ups and will save your cylinder walls and pistons from a lot of wear. Wiseco uses a silicon alloy which will slap, although Wiseco has taken many steps to prevent it. Specifically they have offset the pin holes and tapered the top ring land to encourage smooth operation. Also, they now put a moly coating on the piston skirts, although I have first hand experience with similar moly coatings not lasting 10 miles before it's rubbed off.

The Ross pistons are the most straight-forward, no hassle, no-brainer pistons money can buy. That's what I use in my engine and have not been let down to date

 

[Jake90GSX]

Ross pistons use a no-silicon alloy that requires less cylinder-wall clearnace, so they don't slap on cold start ups and will save your cylinder walls and pistons from a lot of wear. Wiseco uses a silicon alloy which will slap, although Wiseco has taken many steps to prevent it. Specifically they have offset the pin holes and tapered the top ring land to encourage smooth operation. Also, they now put a moly coating on the piston skirts, although I have first hand experience with similar moly coatings not lasting 10 miles before it's rubbed off.

The Ross pistons are the most straight-forward, no hassle, no-brainer pistons money can buy. That's what I use in my engine and have not been let down to date

WOW! I have been reading through all the searches that come up from rebuild, pistons, rods.

And so far this is the most helpful thread I have found. I was already leaning to Ross pistons because I had heard that they were better for street cars, and now I know why, thank you so much.

I have read through all the FAQs/tech articles, and the only thread I found on rebuilding was by BUCK, I learned a great deal about rebuilding but was still very unsure what rods or pistons to use for different applications. I am pretty sure I will be using Ross pistons, I am however still unsure if I will use the stock rods or eagle rods. My car has a 6-bolt engine so I am pretty sure the rods it would have are the big 1g rods (smaller ones come from the non 6-bolt motors I believe).