Wiseco pistons with stock rods?
Thread Starter
Racer
Joined: Jan 2009
Posts: 393
Likes: 14
Wiseco pistons with stock rods?
I ordered a set of Wiseco piston set for my LS1 (I think it's K444X3903) to be used with stock rods.
Now I'm assembling these together and found that pin size with these Wisecos is smaller than stock (0.9270" vs 0.9447"). So apparently these are not going together.
What to do? My crank is already balanced for stock rods and these pistons. Was there an error from the seller (I especially noted I need pistons for stock rods) and does Wiseco have these pistons made for stock rods?
Now I'm assembling these together and found that pin size with these Wisecos is smaller than stock (0.9270" vs 0.9447"). So apparently these are not going together.
What to do? My crank is already balanced for stock rods and these pistons. Was there an error from the seller (I especially noted I need pistons for stock rods) and does Wiseco have these pistons made for stock rods?
Pro
Joined: Feb 2011
Posts: 693
Likes: 6
From: Lancaster Ca. & Post whoring here.
The specs on those pistons will give you a low compression ratio.
Are you building a motor for boost ?
The offsets are like stock however, those wrist pins on your Wiseco pistons and stock rods will be to loose.
You can see the specs for various Wiseco pistons with stock bore and stroke here.
http://www.wiseco.com/Catalogs/Automotive/Chevrolet.pdf
.
Are you building a motor for boost ?
The offsets are like stock however, those wrist pins on your Wiseco pistons and stock rods will be to loose.
You can see the specs for various Wiseco pistons with stock bore and stroke here.
http://www.wiseco.com/Catalogs/Automotive/Chevrolet.pdf
.
Last edited by bearcatt; May 5, 2012 at 06:56 PM.
Thread Starter
Racer
Joined: Jan 2009
Posts: 393
Likes: 14
Yes, CR is for boost.
I checked the Wiseco list and there's only one piston with stock sized wrist pin but it has only -2.2 cc dish and I need that -11 cc.
I wonder if it's possible to machine the rod larger and make a sleeve in it with that 0.927" hole.
I checked the Wiseco list and there's only one piston with stock sized wrist pin but it has only -2.2 cc dish and I need that -11 cc.
I wonder if it's possible to machine the rod larger and make a sleeve in it with that 0.927" hole.
Pro
Joined: Feb 2011
Posts: 693
Likes: 6
From: Lancaster Ca. & Post whoring here.
I've never heard of anyone machining a stock rod larger.
Wouldn't it be a better idea to spend a little more for some forged rods and have everything re-balanced.
It may cost more in the short run but end up costing a lot more in the long run.
.
Wouldn't it be a better idea to spend a little more for some forged rods and have everything re-balanced.
It may cost more in the short run but end up costing a lot more in the long run.
.
Pro
Joined: Dec 2003
Posts: 654
Likes: 1
From: chandler az
I've done it before, but not on a chevy. I had a Nissan (or Datsun) rod bushed for a custom set of JE pistons. After spending a small fortune on the pistons I wanted to float the pistons. I would have rather had a set for aftermarket rods, but nobody made them and a custom set of rods is uber expensive.
Thread Starter
Racer
Joined: Jan 2009
Posts: 393
Likes: 14
Yep, new rods might be the best way forward and then rebalance the crank with new rods.
I waited 2 months for the piston set.. Paid 500 bucks for balancing.. and now I hope getting new rods won't take forever.
I hope the seller (well known on this forum) can make me some kind of refund-price on rods since I ordered this piston set with requirement to use stock rods.
I waited 2 months for the piston set.. Paid 500 bucks for balancing.. and now I hope getting new rods won't take forever.
I hope the seller (well known on this forum) can make me some kind of refund-price on rods since I ordered this piston set with requirement to use stock rods.
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Pro
Joined: Feb 2011
Posts: 693
Likes: 6
From: Lancaster Ca. & Post whoring here.
Yep, new rods might be the best way forward and then rebalance the crank with new rods.
I waited 2 months for the piston set.. Paid 500 bucks for balancing.. and now I hope getting new rods won't take forever.
I hope the seller (well known on this forum) can make me some kind of refund-price on rods since I ordered this piston set with requirement to use stock rods.
I waited 2 months for the piston set.. Paid 500 bucks for balancing.. and now I hope getting new rods won't take forever.
I hope the seller (well known on this forum) can make me some kind of refund-price on rods since I ordered this piston set with requirement to use stock rods.
The comment that chevylad made is interesting. Perhaps the vendor can offer a suggestion or remedy for sizing the correct wrist pins.
If not, a set of good forged after market rods would be a lot more stout. You should be able to obtain a set rather quick, the part that might take time is sending everything back for balancing again.
I would talk to one of our vendors. Perhaps Texas Speed or someone similar.
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Last edited by bearcatt; May 6, 2012 at 03:36 PM.
Thread Starter
Racer
Joined: Jan 2009
Posts: 393
Likes: 14
Not a chance:
Hinson Supercars was the one that did the mistake.
Their version of consession came today after 3 days of "I'll call you within few hours"-nonsense: They would sell me K1 rods $549 + actual shipping, delivery time unknown.
So no help from there. I get those same rods elsewhere $50 cheaper with couple of days shipping estimate.
Kinda funny that I have made two orders to Hinson and both of them are perfect examples of poor customer service.
Hinson Supercars was the one that did the mistake.
Their version of consession came today after 3 days of "I'll call you within few hours"-nonsense: They would sell me K1 rods $549 + actual shipping, delivery time unknown.
So no help from there. I get those same rods elsewhere $50 cheaper with couple of days shipping estimate.
Kinda funny that I have made two orders to Hinson and both of them are perfect examples of poor customer service.
Safety Car
Joined: Aug 2011
Posts: 4,450
Likes: 410
From: Portland OR
What is your machine shop saying? They did the balance, correct?
Seems like since the rod small end is too large for the pin, they could be bushed quite easily. It is common practice.
Of course wouldn't it have been nice if the machine shop would have measured things for you before balancing. Unfortunately doing work first and measuring later is also common practice.
Ron
Seems like since the rod small end is too large for the pin, they could be bushed quite easily. It is common practice.
Of course wouldn't it have been nice if the machine shop would have measured things for you before balancing. Unfortunately doing work first and measuring later is also common practice.
Ron
Thread Starter
Racer
Joined: Jan 2009
Posts: 393
Likes: 14
Yes, the machine shop balanced the crank with stock rods, these pistons with their accessories and rod bolts. They didn't assemble them together, that was my job.
Now I'm getting K1 rods here as soon as possible and I remove the crank from the block to be rebalanced with new rods and existing pistons.
Spent a lot of money (at least lot of on my scale) and wasted a lot of time with this episode.
Machine shop examined those rods and they said it can't be bushed due to too little material around the small end. Bushing takes some room and these stock rods are quite thin on the end.
Now I'm getting K1 rods here as soon as possible and I remove the crank from the block to be rebalanced with new rods and existing pistons.
Spent a lot of money (at least lot of on my scale) and wasted a lot of time with this episode.
Machine shop examined those rods and they said it can't be bushed due to too little material around the small end. Bushing takes some room and these stock rods are quite thin on the end.
Pro
Joined: Feb 2011
Posts: 693
Likes: 6
From: Lancaster Ca. & Post whoring here.
Not a chance:
Hinson Supercars was the one that did the mistake.
Their version of consession came today after 3 days of "I'll call you within few hours"-nonsense: They would sell me K1 rods $549 + actual shipping, delivery time unknown.
So no help from there. I get those same rods elsewhere $50 cheaper with couple of days shipping estimate.
Kinda funny that I have made two orders to Hinson and both of them are perfect examples of poor customer service.
Hinson Supercars was the one that did the mistake.
Their version of consession came today after 3 days of "I'll call you within few hours"-nonsense: They would sell me K1 rods $549 + actual shipping, delivery time unknown.
So no help from there. I get those same rods elsewhere $50 cheaper with couple of days shipping estimate.
Kinda funny that I have made two orders to Hinson and both of them are perfect examples of poor customer service.
Wow that's bogus.
.
Pro
Joined: Feb 2011
Posts: 693
Likes: 6
From: Lancaster Ca. & Post whoring here.
Wisco pistons are some of the best. Wisco has been around for a long time. I've used them in the past and would use them for the next build.
From what I understand all Wisco products are designed and manufactured in house.
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