Ordered some Custom 8.3:1 Dished Forged pistons from Ross Racing (http://www.rosspistons.com), total came to $774.20

That includes Pinfit, Pins and Rings. Pretty good deal for some of the best pistons out.

I also ordered some Crower Sportsman 6" forged connecting rods for $337.50.

I got my new 3.1L crank a couple days ago.

Twin Turbo setup here i come!

I hope to be done in at least 3 months, depends on how much freetime off i get from work.

BTW: If anyone knows where to get some good condition identical used T25 turbos for less than 200$ each, please let me know.

EDIT: they said the pistons would be done in 2 weeks.

 

Lee, What is the PE size of the connecting rod when you ordered the pistons- They must have asked. I am finding two different specs- .900 and 1.060 (They are pin end widths- NOT wrist pin diameters. I don't have a spare stock rod sitting around that I can mic.

Any help? Thanks, Dean

ps. I know the pin dia. is .912. And the SBC rods are .927- but looking for the width.

 

i got the Crower Sportsman rods, which have a .927" wrist pin, dont know the width... but they should be the same as SBC pin end widths.

Ross said it doesnt matter anyways, as long as its not too small, since they are floating pins (not pressed like normal)

Looking at the job card (specs for the pistons) it say's the Pin Length is 2.5"... if that helps at all.

 

Thankyou Lee. I am tring to get a quote from Carrillo right now on custom rods and they require a PE width- I know the SBC rod(small jounal )have a 1.060 PE width but I have seen a spec cart from one of the performance sites that a guy ordered his with a .900 PE width. I too am planning on Ross pistons, even though Carrillo owns JE pistons (Ross is local too me and I have always felt they make an "of the best" product). Rotation weight is important too me also- I'll call Ross direct and check on there Pin styles and recommendations. I may even decide to retain the smaller pin V6 pin dia if I can squeeze a 6.125"rod in there. Doing the unique & unknown is always a pain in the ***.

I am really trying to raise my compression ratio a point or two higher and still run pump gas- loking possibly for 10.2 or 10.3 while still running iron heads.

 

The pistons ross made up for me are 317 grams each, which is pretty light, probably because its a dish. If you were going for a high compression ratio, you would need a dome, which would add a little more weight, but it would still be light.

The pistons by themselves were $460, you could use stock 2.8 rings, but you would have to know the height of them so they can make the ring lands the correct size. If you dont get ross to pinfit them, they will make the pin hole smaller than the pin and you will have to take it to the machine shop to get them fit... So i just got the pinfit with it.

 

Thank you for the added info- however this is not a 2.8- I will take the rings I am using to them when I order- like one should with any custom piston-

In case you are not too familiar with running extended length rods (this goes to anyone- (just some general good info to know if you don't)- the longer the rod the smaller the piston can be made down to a certain thickness. Then thats it, things become too thin. When using higher compression- yes, the dome will be higher- but the pin fit relation will be higher also to keep the deck height proper. Here's where the propblem lyes, if the rod is too long, then wrist pin will intrude into the bottom ring area in the piston- On a smaller hp engine like this(under 300hp), I can utilize the small dia pinfit to get a longer rod- Just how long, I don't know yet. Will have to sit down with the block when I get it and work out the calculations.

 

If anyone is curious-Got quoted a price from Carrillo on "roller bearing bottom end" rods- OUCH. Dealers cost is $269.00 per rod- I will have to sleep on this for awhile and see if I really want to go that radical with this motor. I'm going to get a quote on plain bearing custom rods also.

 

Well, until I pick up a block and have it machined and decked, then check with the piston manuf. on how low of a compression height piston I can have custom built, I just am not certain if custom rods are worth the extra .1-.2" in length. Carillo rods are going to run me min $1500 for custom 6.2" .854be width/.875pe- thats looking at about a 1.1" comp height piston (extra lightweight).
Eagle has out a new lightweight 'over-the-counter' 6" smalljounal sbc rod(steel) that weights 545g for $388.00 per set of 8. (.940 be width- can have machined down to .854 for $150- Much cheaper route but a little heavier assembly. I can't justify the cost of Carillo's- This can turn into a $4500 motor real quick going that route.

 

I have a new set of Eagle 6" small journal rods that need a new home. I got them than found a set of Carrillo's I lost in the shop for a few years. Don't know the gram weight on them.

Jerry

 

The ones I'm really interested in are part # CRS6000SLW. They are a brand new h-beam, aren't out yet-no price?

Are the ones you have the BLW's (CRS6000BLW) Those are 545g.
Jegs sells them for $388. I'd like to see what the SLW's cost, if they are outragous, then I may be interested in yours.

EDit: Opps- I think the BLW's are a 2.225 large jounal, not 2.125 small journal- *&^%, I hate catalog shopping. Specs aren't always listed and when they are, they aren't correct 1/2 the time.
Anyways Jerry, Can you see if they have a part # I can check up on. They may be S3D's, If so, I don't want/or need that heavy duty of a rod.
Thanks, Dean.