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  will the Mercruiser 3.0 L 4 cyl. engine work in an 84 Fiero with an Iron Duke

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will the Mercruiser 3.0 L 4 cyl. engine work in an 84 Fiero with an Iron Duke by Tracker
Started on: 11-06-2014 10:29 PM
Replies: 2 (188 views)
Last post by: KurtAKX on 11-07-2014 08:19 AM
Tracker
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Report this Post11-06-2014 10:29 PM Click Here to See the Profile for TrackerClick Here to Email TrackerSend a Private Message to TrackerEdit/Delete MessageReply w/QuoteDirect Link to This Post
The chevrolet based Mercruiser engine is a relatively high performance engine (140 hp). It is made to run for long periords of time at 4,000 rpm. It should be available on the used boat engine market. i

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Report this Post11-06-2014 11:15 PM Click Here to See the Profile for fierofoolClick Here to visit fierofool's HomePageClick Here to Email fierofoolSend a Private Message to fierofoolEdit/Delete MessageReply w/QuoteDirect Link to This Post
I think the bellhousing bolt pattern is different from the Fiero transmissions. Also, the cam grind is designed to run at high rpm while under constant load. A boat outdrive is under a constant load in order to keep the boat planed out. You don't have that load when cruising in a vehicle so it would be very similar to just revving the engine to 4500 rpm and holding it for long durations. The engine wouldn't last very long. Changing out the cam may be an option.

Automotive and marine engines can be interchanged with slight mods. I found that the 4.3 V6 truck engine specs were identical to my 4.3 Yamaha engine. Everything in the engine was the same except for the camshaft. Same crank, rods, pistons, oil pump and heads. So, I would assume that the engine could be reverse engineered to go into a car.

The major thing I found that was different in the truck and marine long block was the price. $850 for a reman truck short block as opposed to nearly $3000 for a reman marine long block.
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Report this Post11-07-2014 08:19 AM Click Here to See the Profile for KurtAKXSend a Private Message to KurtAKXEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Tracker:

will the Mercruiser 3.0 L 4 cyl. engine work in an 84 Fiero with an Iron Duke
Tracker


Nope.

Bellhousing doesn't fit.
Front motor mount bracket doesn't fit.
The head has the intake and exhaust on the same side.
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