Selling 3 super duty 4 complete engines. First engine 2484cc steel SD head 2.02 and 1.92 valves 6.125 rod je 4" pistons entire block sleeved with thick wall sleeves. Crane rr cam with new isky lifters. 2bbl intake 2nd: 3.25 eagle crank stroke . 040 over block srp pistons 6.125 rods crane 5 bearing rr alum 437 head with 2.08 titanium valves 4bbl intake port matched to head 3rd: 3.060 SD crank alum 437 head 2.08 titanium valves srp. 040 pistons 6.2 rod isky rr cam. Have another 437 head with steel valves. Have 2 more 3.25 cranks 1 is SD the other is forged steel aftermarket. Have clutches, distributors, Intakes, internal and external oil pumps, camshafts, pushrods, water pumps ect.
Sorry for the late response. Didn't get an notification there was a response. 2 blocks are 5 bearing with needle bearing rollers and starter mounts on both sides of block. The other is the early style 3 bearing. I have 3 sets of jesel rockers 1.55 1.6 and 1.7 ratio. I have 5 sets of jesel rocker stands it takes 2 sets to configure them to fit on the iron head.
One block is perfect. Has 4 thick wall sleeves made for tractor pull engines. It is 4.00 bore has flat top je pistons. No expense spared and has been taken care of meticulously and dynoed. One of the others has been windowed out of #3 just at the end of the superduty logo. Has been sleeved and block repaired line bored ect. Both these engines are currently running and driving in dirt oval racers and are being sold fully assembled. Both these blocks are 5 bearing roller bearing cams. The last block is currently being sonic tested throughout from a hairline Crack in #2 cyl. Most likely is going to need 4 sleeves to become a reliable engine. I have cranks to build it as 2500 2700 and 3000 with flat top or eyelid pistons and steel or alum head depending on what the buyer wants to do with it. Also clutches bellhousings ect.
Which TBI are you using? Is it a stock Fiero Duke TBI? And if so, did you need to retune the ECM?
A stock TBI won't work on an SD engine. Reason being it can't deliver enough fuel. The stock injector is something like 60 lb/hr flow rate. You need one almost double that And Yes, you would need to reprogram the computer, if it could be done. I don't know anyone that has done this. I have a TBI from a 5.0 liter V8 Truck. The 4.3, 5.0, and 5.7 TBI is all the same (for the most part), with the main difference being injector size and vacuum ports. With the 5.0 injectors I am exceeding 100% duty cycle during my shifts at WOT. I have a new ECU from Dynamic EFI which can be flashed on the fly. Its a great product.