First and most important of all. My 4.9 is out of an 92 Seville STS, ELenor's manifolds look just like mine. I tried asking ths question once but didnt get any good feed back to hit the spot. I am asking if the seville manifolds are usable in the fiero, do they leave enough space to bend a 2.5" exhaust? Do the manifolds even fit in the car, it looks like it'd clear but not leave enough space for the exhuast. Also could I use a trans cooler for the oil cooler. Because, on JCwhitney.com they have oilcoolers/trans oil coolers. They look the same besides the trans coolers are about half the price as the oil coolers but look mostly the same and come in the same tube diameters.

Thanks in advance
Jim

On Elenor's car the engine fits into the Fiero with the stock manifolds on, now if one can install an exhaust with them that is to be seen. I have not been under his car (been busy doing all the wiring), so I can't really comment on just how much space there really is. I can have a look on Saturday when I am back working on it again (assuming I remember)

That is about all I can offer at the moment.

Tim

check out Rockcrawls website www.fieroaddiction.com
go to the 4.9 section then to performance mods. the motor he last built used seville manifolds and has a couple of good pictures
of an exhaust he had made.

Dragon1/Brian

I used a oil/transmition cooler. I'll let u know how it works...I'm firing it up for the first time today!

Seville manifolds will work.

Oil cooler must be 1/2 diameter, perma cool #609 for $35.00 from summit and your set.

Pete

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My manifolds fit, and there is enough room for an exhaust to be bent. The only thing that will be different is the mufler is probably going to be alittle more to the left in placement.