Engine Identification (Page 4/4) richard in nc MAY 06, 02:00 PM quote Originally posted by 82-T/A [At Work]: Hey N1022AR, I'm a little less of an hour south of you... so if at some point you decide you need to do this. My daughter and I can lend a hand. She's currently doing an engine rebuild and dropped the cradle on her car too. Shameless plug... Anyway... about the 3.4 vs other engines. Assuming you ALREADY have a V6 Fiero (which I think you said you do), the 3.4 is about the easiest performance upgrade you can possibly get when it comes to engine swaps. Literally everything swaps over. There are only three modifications that need to have happened: 1 - Starter needs to be relocated, which means tapping 1 existing hole, and drilling/tapping a second hole. There is a jig available for $100 bucks from http://www.RodneyDickman.com to do this. You can easily handle this in your garage, or a machine shop can do it for super cheap. 2 - You need to get larger injectors (likey 17lb injectors to upgrade from your 15lb injectors). 3 - There is an adaptor fitting for the oil pressure sending unit (also available for like $10 bucks from Rodney Dickman). ... everything else just bolts up. If you have a manual transmission, and you have an 85-87, you'll need to get a neutrally balanced flywheel. If you have an 88, your existing flywheel will work. But all the brackets, your transmission, like... literally everything just bolts up. If you do absolutely nothing at all to the 3.4 except drop it in... you can expect ~25hp increase in a Fiero. Stock for stock, there's a 20hp difference, but the Fiero has a shorter exhaust, and better intake, which provides a bit more horsepower. You CAN get to 200hp if you do the following (based on similar posts on here) - Port matching the intake components - Boring the throttle body - DAWG mod to the intake plenum - Hogging out the exhaust manifolds - Swapping out the camshaft to one that's more performance oriented There's a ton of other parts too that will also improve power... roller rockers (higher or stock ratio), Stainless Steel SI performance valves, cyl head porting, headers, etc. The benefit to all of this of course is that the car looks totally stock, but will have anywhere from 25-60 more horsepower (depending on what you do with it). It'll have similar Fiero characteristics and sound. With any other engine swap... there's a lot more you'll need to change out. Basically, you'll want to get the entire engine (with all accessories) as well as the ECM and wiring harness. There's going to be a lot of wiring and custom parts (that are usually available, or that you'll have a machine shop make). The two main reasons why you'd want to go with the 3.4 V6/60 is: - You re-use 99% of everything that's currently bolted to your 2.8 - Looks totally stock, but still provides upwards of 200 horsepower. A rebuilt 3.4 from Autozone will cost you around ~$2,300. Again... you could get an LS1 on eBay for $1,500 ready to go... but then you're going to be spending many more thousands, and lots of labor getting it to work in the car. All of which is possible... you just need to decide what your appetite is for this kind of work and cost. a helpful link. http://fiero34swap.eleventenths.org/#essentials