4.9 Caddy motor vs 3800 supercharged (Page 3/5) va441975 MAR 31, 11:39 PM That’s very true. I appreciate the feedback! I do appreciate a great sounding car. I think I took for granted how nice my 2.8 sounds. I’ll definitely check out YouTube videos. I’d like more horsepower but want it to sound good as well. viperine APR 01, 12:47 AM Here's an angle I have not dealt with but have heard about. Mechanics do NOT like working on the Cadillac motor. Even the factory installs. That was more than enough to steer me from the caddy motor. If it had a problem, expect worse problems finding someone to fix it. My first drive in practice was a Northstar. Crazy power. Good luck getting it serviced!!! va441975 APR 01, 06:46 AM Thanks for the info. My experience in the past mechanics don’t like servicing a Fiero period. Maybe it’s changed now but I’ve had problems in the past with mechanics. olejoedad APR 01, 08:29 AM Not much service required on a 4.9, and it's not hard to do. I've got over 100,000 on my swap. Plugs and wires, cap and rotor, oil changes. Just normal stuff. va441975 APR 01, 08:51 AM Sweet! How do you like the 4.9 any complaints or regrets with the swap? BadNewsBrendan APR 01, 09:45 AM If you are going to go through the trouble to V8 swap it you might as well put an LS in it. Sure its probably harder to swap in than the 4.9 caddy but at least you have the power to make it worth it and endless aftermarket options. va441975 APR 01, 11:15 AM Thank you for the info. Is there a place that specializes in installing these motors in the Fiero? Mickey_Moose APR 01, 12:17 PM I had a couple complaints with my 4.9l swap: 1) I bolted it to a 5 speed - while it was fun I suspect that going the auto route would have been a far better choice since the 5 speed is not geared correctly for the 4.9l power band. 2) limited rpm - doesn't pull much after 4200 rpm, so if you go to the track you will find this is a limiting factor in the 4.9l That being said, it was a cheap and easy swap - and for people in the crowds they think it is cool having a V8 stuffed into a Fiero. Would I do another 4.9l swap? Probably not, I would lean more towards the 3800SC and use an auto. va441975 APR 01, 12:24 PM Great information! Makes sense about the heat ratio. I love driving a Fiero with a stick though. olejoedad APR 01, 02:26 PM I like the 4.9 swap. It's not a race car, but it's quick, reliable, gets good gas mileage and sounds good. And it looks good in the engine bay. Using the 4T60E transmission that Cadillac put with the engine ensures there won't be problems with the transmission breaking. The weight of the drivetrain doesn't upset the handling, as it doesn't weigh much more than the stock drivetrain.