I have a 1986 2.8 v6 in my fiero now but motor is blown and plan on getting another engine to do a rebuild on. I was thinking about buy the 85-86 V6 PERFORMANCE ENGINE KIT off the fiero Store. http://www.fierostore.com/P...rowse.aspx?d=204&p=1 Can i get some advice and information about this engine kit and do i need to know about anything before buying this kit and etc.. I just need some info about it such as if it comes with everything i need to do a rebuild do i have to buy addition stuff besides gaskets and all... And lastly when looking for another 2.8 to do the rebuild on what should i look for?? lower miles well taken care that sort of thing? All your help, tips, information would help greatly So if you know something please post. Thanks Fiero forum

Ton

:/

Sorry cant help you with your question. I dont think many members on here have any experience with this kit.
If an engine blows and you want more performance, most people do an engine swap.
BUT, hopefully someone can help you out.

Zach

Well thanks anyway.. Man This sucks :/ lol

i have one of these kits for my 87 its the same as the 86 kit but diffrent gaskit kit. i havent fitted it yet but it comes with everything you need and looks to be top quality parts, new oil pump, forged pistons, ect. most guys on this forum will tell you to just do a bigger engine swap for cheaper, and end up with more hp. but if you want to keep your fiero original i recomend the fiero store high performance kit, only downside is you get the cam thats in the kit and cant choose your own, but if its just for normal street use its perfect.

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2004 yamaha r1
1987 fiero gt

every few months, this Q comes up.
maybe some of those who asked this previously, can give a answer?

tho, I'd expect, if there was day dreams of a new street terror machine - dissapointment would be the answer
while it is a good strong collection of stuff - the real key to getting power out of these motors is porting
getting more intake & exhaust potential

Having rebuilt a couple, you don't really need the forged pistons and such. The stock pistons are pretty good and unless you are changing your compression ratio, or going to boost, I wouldn't go to the expense.

The stock cam and pistons will do really well and take you to 1 hp/ci with no difficulty. You need the Trueleo intake and exhaust and I would recommend porting the stock heads, getting the valves re-seated by a qualified engine shop and putting in 1.6 ratio roller tip rockers. If you go past that, there are lots of other tricks but they cost. I don't think that for performance you need to spend $997 on engine basics. I'd spend the money on the porting etc. You also have the underdrive pulley, crank scraper, and maybe the light flywheel if you want to wind it up.

It is true however, that it is cheaper to drop in a DOHC you can retrieve from a salvage yard, but, when you rebuild an engine you know exactly what you've got with no surprises if you follow my drift.

Good luck

Arn

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thats good advice arn,
ive still got your pm that you sent me about rebuilding, ive now got the 1.50 rockers like you suggested and will tune it how you advised when the engine is rebuilt, but the original is still going strong with 145thou miles on it. and am only going to fit the kit when needed because i cant do it myself and have been quoted $3000 to get it done by the pros.

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2004 yamaha r1
1987 fiero gt

Pistons will go a long distance in a 2.8 and can often be retained in a rebuild.. just use new rings,,fuel injection does not "wash"the oil from the top of the block like the old carbs use to do..
If the engine is going to be run hard then go with the performance pistons,,on a performance built engine the second ring should be gapped .001 to .002 wider than the top of course..
use pistons to place rings in proper position for gapping ..

Good Info guys thanks ) what kind of engine should i look for lower mile ones compared to the high miles ones?? well maintain etc cuz i had one with 132,000 Run really good then got a 97000 run like crap look like it was dogged and ofcourse started knocking so yeah...

There is too much variation to base your decision on mileage alone. Wear is affected by how hard the engine is thrashed but also frequency of oil changes, and type of oil used. You really have to take the engine apart, or while it is still running do a proper compression test or even a leak down test.

If you have it apart the basic rule of thumb is that that part you don't replace is the weak link of the build. If you are going to tear one down, you are looking at crank shaft sleeve bearings, mains, and new rings regardless. You are also talking about significant head work. Essentially if the donor engine is running ok and you don't have broken or cracked internals, the rebuild is all the same.

Hope this helps

Arn