does anyone know where we can find forged parts like a crank or rods or pistons or bearing performance parts many thanks all

The rods are already forged.

Not knowing any other V6-60 specialty shops or builders, I would probably begin my search at Summit, for the other pieces.
GM might have some of the old hotrod stuff in stock, but I doubt it.

Some of the folks on here who are building up the newer V6-60s probably can offer some help.

[This message has been edited by Raydar (edited 04-08-2012).]

thanks raydar

Are you sure Raydar...? I know you've been around but GM spending money for forged?

I went with Ross Pistons when I did my rebuild and ARI for my rods... it's a 3.4L p/r though... Both companies make anything you give them

I believe the rods are forged. I'll look around though. I could be wrong.
They're the same ones they use in the DOHC engine.
That certainly doesn't mean there can't be better ones out there.

quote Originally posted by unboundmo: Are you sure Raydar...? I know you've been around but GM spending money for forged? I went with Ross Pistons when I did my rebuild and ARI for my rods... it's a 3.4L p/r though... Both companies make anything you give them

Are your pistons dished like in the pics? What is your compression ratio?

Those are my pistons... With those rods I get a compression ratio of 9.25:1

[This message has been edited by unboundmo (edited 04-09-2012).]

The rods in my 2.8l appeared to be cast not forged when we took it down to rebuild. I know Probe used to make some 9.5:1 Forged aluminum pistons. Thats what I used in my build along with rods, I dont recall who made those though. and ARP bolts.

Stock rods are cast, as are all the stock internals. Forged pistons and rods will cost a bunch relative to the power gains so I recommend Hypereutectic pistons. Much more affordable but stronger than the stockers by a ton.

quote Originally posted by fierogtx: does anyone know where we can find forged parts like a crank or rods or pistons or bearing performance parts many thanks all

All of the 3900 and 3500 VVT motors have forged cranks that would need to have the crank pins turned down to the 2" diameter although I don't remember what the stroke is on the 3500VVT crank is for certain I do believe it is 3". I still have the first forged crank I had offset ground to 3.43" with radiused pins if interested. You can buy forged small block chevy rods and have them narrowed for something stronger than stock if you really think you need it and I'd expect you to be able to find a set of forged 2.8L pistons for not too awful much given how long its been around. I'd investigate the need for such parts before investing in any of them though.

@Joseph, There was a lot of discussion over on the 60-deg forum about which years/models to source the forged crank from. So has it finally been proven that all 3500/3900 engines have the forged crank?

Gary

quote Originally posted by G-Man: @Joseph, There was a lot of discussion over on the 60-deg forum about which years/models to source the forged crank from. So has it finally been proven that all 3500/3900 engines have the forged crank? Gary

Only the non VVT 3500 received the cast iron version but they seemed to be few and far between, the cast crank that is.

[This message has been edited by Joseph Upson (edited 04-10-2012).]

I just completed a major rebuild of y 2.8 with lots of high performance goodies. The stock rods are strong enough if don't go with forced induction and high boost numbers. Just rework them -grind/smooth off casting ridges etc- and have them balanced. This is one of my rework rods with my custom 9.37:1 Venola forged pistons on it. BTW: Venola had the best pricing and they make good stuff, they'er old company. Heads were CC and ported.



As for a forged crank, that can get insanely costly. I went with a new Eagle steel crank. You may have to look some to find another.
Also check out Engle Cams, they have lots of grinds for the 2.8 just make sure you order one for the 60 deg Fiero engine.
Tip, do not use 1.6 rockers. I have 1.5 roller tips in mine. Use an oil made for push rod engines with zinc. Royal Purple, Locus etc.

a couple of photos of my assemble 2.8 before it went into car. It's built for peek HP around 6 - 6.5 K rpm. I'm still breaking it in no dyno data yet.




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trueleo.com
RSpiderII@aol.com

[This message has been edited by Francis T (edited 04-10-2012).]

i know my crank is cast. but not the rods, i too thought they were forged.
http://www.fieronews.net/fu...id=1&download_id=147
page 3-12 says all production 60*v6 connecting rods are forged and good for up to 7000rpm
pistons would be cast aluminum flat tops tho

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1985 gt notchie auto (pic)| 3800 SFI N/A coming soon
1986 se notchie standard 4spd | for sale after 3800 swap

[This message has been edited by BlackGT Codde (edited 04-10-2012).]

quote Originally posted by BlackGT Codde: ... page 3-12 says all production 60*v6 connecting rods are forged and good for up to 7000rpm ...

Okay. I have the same book. I hoped I wasn't losing my mind.

quote Originally posted by Francis T:

Unless you used stainless steel tubing that header wrap is likely going to ruin your headers at some point. I used it on 14 ga mild steel and late model cast exhaust manifolds and in a years time they started to flake. I use shields made from aluminum sheet metal folded over heat wrap strips instead. With such long runners an exhaust leak due to a cracked tube could be hard to find.

[This message has been edited by Joseph Upson (edited 04-10-2012).]

Nice pistons! I had Ross Racing do up my 3.2 pistons for my turbo (didn't want any higher compression). Yes, the rods are very good and are forged. It is more recently that the General has been cheaping out and using powder 'forged' rods which don't have the strength of forged rods. My turbo LNF motor in my Solstice uses forged while the LE5 non-turbo engine in the normally aspirated Solstice uses PF (powder forged aka 'powder metal') rods.

Just wanted to say that there is nothing wrong with my Crane's Gold series 1.6 roller rockers, comps performance springs combo. I'm running the comp 260 cam, SI stainless valves and chrome moly push rods too... My Gt gets up and goes.. It surprises most that have done the swap also. It pulls like a V8 in torque for what people say...

I do plan to boost so that's why I forged everything...

[This message has been edited by unboundmo (edited 04-11-2012).]

quote Originally posted by BillS: It is more recently that the General has been cheaping out and using powder 'forged' rods which don't have the strength of forged rods. My turbo LNF motor in my Solstice uses forged while the LE5 non-turbo engine in the normally aspirated Solstice uses PF (powder forged aka 'powder metal') rods.

I wouldn't say that without proof. All the literature I've read over the past few years on PM rods has suggested just the opposite. There's also a company that manufactures performance connecting rods using the PM process that's pretty popular, I just don't recall their name. I checked GM Powertrain and both the LNF and LE5 have Forged Steel Connecting rods listed on their engine spec sheet. GM plays with words and since the PM rods are common place components and what the ~550hp/550lb-ft supercharged caddi uses, so chances are very high that's what the LNF and LE5 uses although they are probably different in construct the person writing up the spec sheet may have just left off powder metal in the description.

The 3.6L DOHC has Sinterforged steel rods, the spec sheet doesn't say powder metal, but that's what they are.

I can't see connecting rod strength going backwards at the same time production engine performance is going up. PM is a new technology, not a poor quality part.

many thanks all lol i speek french and i will have to read it a couple of times to understand it llol many thanks all for your answer and the information

i found that the 3.1 and 2.8 have the same pistons can i put a cranckshaft and piston from the 3.1 turbo from a grand prix turbo and pit it on my 2.8 block ?????

Several years ago there was a company that made custom 2.8L/3.1L crankshafts but I do not recall the name. I will try to look it up to see if I still have it but IMO its not a good investment. The stock cranks should be able to take 300HP . Beyond that you'll probably be changing engines.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

quote Originally posted by unboundmo: Just wanted to say that there is nothing wrong with my Crane's Gold series 1.6 roller rockers, comps performance springs combo. I'm running the comp 260 cam, SI stainless valves and chrome moly push rods too... My Gt gets up and goes.. It surprises most that have done the swap also. It pulls like a V8 in torque for what people say... I do plan to boost so that's why I forged everything...

Most aftermarket cam makers -including many/if not all. that sell 1.6 rockers-, will not honer excessive cam lob wear if they know you're using 1.6 rockers. It probably has more to do with proper spring rate selection. If your springs are too stiff for the 1.6 rockers, when the miles start to add up some, the cam lob wear will become evident. 1.6 rockers are kind of a band aide to compensate for a cam that don;t have the desired lift/profile. In many cases you end up with a weird lift/profile that may or may be better than stock but still not what you really want. Whatever, make sure you use the right oil and not syntec like Mobel One.

[This message has been edited by Francis T (edited 04-13-2012).]

i beg to differ about the synthetic argument "no zinc in synthetics, takes out camshafts" i have heard this many of times, and i ran fully synthetic in my 2.8 for 30k miles, no camshaft wear. i had it all apart to inspect it with my own eyes\ no cam wear whatsoever on a flat tappet camshaft.

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1985 gt notchie auto (pic)| 3800 SFI N/A coming soon
1986 se notchie standard 4spd | for sale after 3800 swap

www.engine-parts.com

this is the A.R.I site
there has only been one negarive on them from the fiero community
good stuff to improve performance of 2.8,,3.1..& 3.4
there crankshafts have a good reputation
this is an engine candy store with out outrageous claims
been in business for many years
located in Kansas city MO. area

quote Originally posted by Joseph Upson: I wouldn't say that without proof. All the literature I've read over the past few years on PM rods has suggested just the opposite. There's also a company that manufactures performance connecting rods using the PM process that's pretty popular, I just don't recall their name. I checked GM Powertrain and both the LNF and LE5 have Forged Steel Connecting rods listed on their engine spec sheet. GM plays with words and since the PM rods are common place components and what the ~550hp/550lb-ft supercharged caddi uses, so chances are very high that's what the LNF and LE5 uses although they are probably different in construct the person writing up the spec sheet may have just left off powder metal in the description. The 3.6L DOHC has Sinterforged steel rods, the spec sheet doesn't say powder metal, but that's what they are. I can't see connecting rod strength going backwards at the same time production engine performance is going up. PM is a new technology, not a poor quality part.

Must agree with Joe here. Powdered metal con rods are considered to be very high strength and are used in some very high horsepower applications.
Powdered metal rods are made from fine metal particles that are melted together under extreme heat and high pressure.

------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "