3400/3500 Swap Information (Page 2/4)
ericjon262 FEB 18, 01:18 AM
he's swapping a 3900 in now. the 3500 is going back into his 4 speed Fiero.

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we're in desperate need of a little more religion to nurse your god-like point of view...

Built not bought...

http://www.fiero.nl/forum/Forum2/HTML/119122.html

Bridgetown FEB 19, 12:38 AM
More pics and info added
ericjon262 FEB 19, 12:59 AM
if you use the low mount alternator setup seen above, install an idler pulley on the standoff between the crank and the waterpump, that will give you way more wrap on both the alternator and the crank.
ericjon262 APR 17, 02:27 AM
anyone have coolant hose P/N's for the swap?

Edit:

and by coolant hose, I''m referring to the main hose into the waterpump, and out of the thermostat.

[This message has been edited by ericjon262 (edited 04-17-2013).]

pontiackid86 APR 18, 12:45 AM
I had the pleasure to own a boosted 3400SFI engine in a fiero and its the most fun I've had in a car that dident involve a back seat and a female Stupid fast very responsive and a ton of fun to drive. In my opinion (and my car was not given its due credit by the 3800Sc guys) but it rivaled the 3800Sc swap in everything but reliability.

[This message has been edited by pontiackid86 (edited 04-18-2013).]

ericjon262 APR 19, 12:15 PM
3.4 F bodies and some early 90's 3.8 FWD have a coil pack adapter that can make swapping an early coilpack onto a 3500 coilpack mount easier. that adapter uses 3 larger bolts to hold it on much easier to drill out then 6 smaller holes.



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we're in desperate need of a little more religion to nurse your god-like point of view...

Built not bought... Because bolt-ons don't.

http://www.fiero.nl/forum/Forum2/HTML/119122.html

BV MotorSports APR 19, 01:25 PM

quote
Originally posted by ericjon262:

3.4 F bodies and some early 90's 3.8 FWD have a coil pack adapter that can make swapping an early coilpack onto a 3500 coilpack mount easier. that adapter uses 3 larger bolts to hold it on much easier to drill out then 6 smaller holes.






I use the same coil pack adapter on my L67.
x-thumpr-x APR 20, 10:51 PM

quote
Originally posted by ericjon262:

anyone have coolant hose P/N's for the swap?

Edit:

and by coolant hose, I''m referring to the main hose into the waterpump, and out of the thermostat.




I don't have the part numbers but know what I'm have. On the water pump side, I'm using a stock 87 4cylinder with A/C (to clear my alternator) on the thermostat side I'm also using a stock 4 cylinder hose that goes to a T-fitting (for coolant fill) then I used a small piece from there to the thermostat housing.
ericjon262 APR 21, 12:12 PM
10-4, thanks.

for the interested parties,

TCE sells adapters to adapt the stock fuel rail to AN fittings.

http://britishcarconversion...id=62&category_id=26

Nook and Tranny sells AN fitting adapter that work for the body side lines.

http://www.nookandtranny.co...Category_Code=HOS-AN

The TCE adapters will require you to use an aftermarket FPR. I plan to go with an Aeromotive piece.
lou_dias FEB 20, 12:10 PM
I bought a swapped car (3100 bad head gasket mated to a 4T60-E). I swapped out the 3100 block and heads with a 3400.
It constantly overheats. I believe it is because it is using 2 expansion tanks: the stock 86 Fiero expansion and a setup similar to what has been described here.
There was no mention of blocking off the Fiero expansion tank as a solution in this thread, but is that what is done? My mechanic is suggesting this.