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I'm sure this has been covered previously but I couldn't find any definitive answers and I spend most of my time in the transmission section on here.
I have an unknown running SBC I've pulled from a donor car to use in my build. it is currently setup with a billet distributor and HVC2 coil. rather than spend the money on a 7AL3 I am planning to make use of the FT550 I have to run the engine using a set of LS coils.
And does anyone have some SBC LS coil brackets they recommend? looking for something I could mount on the valve cover before I make some to mount them to chassis/firewall.
apologies in advance my engine knowledge is mostly ford mod motor based but this SBC was a deal I couldn't pass up.
How do you plan to fire the coils? I'm pretty sure the LS engines' computers require a 24X reluctor wheel on the crank. I thought there was some kits that allowed you to convert a distributor ignition to a coil-on-plug like the LS, but can't remember how they did that.
If you want to use LS coilpacks...sell that engine and just get yourself an LS. Then everything will work and you can find parts for your engine at any local parts stores for the next 20 years or whatever. That would be my advice.
I'm using a Fueltech FT550 ECU to fire the coils and control timing. I just have to get cam signal and crank signal to the ECU. I'm going to keep it carbureted for now so that's all I will need outside of a wideband sensor which I already have that and the crank signal handled.
If you can find an LS oil pan to throttle body that already equipped an high output alternator, billet vacuum pump, Meziere water pump, sheet metal valve covers, ID1050 or bigger injectors, fast or similar intake, long tube headers and makes 450-500chp for about $1500-2000, then sure, I would swap it. But I got this whole setup for next to nothing and all it needs is ignition so I'm sticking with this.
Holley aluminum L31 timing cover, EFI Connection 24x reluctor and a Vortec 350 distributor for an oil pump drive and 1x cam sensor. Easy way to make a SBC 24x coil per cylinder. Use whatever LS engine management setup you want to run. I will run a well-built small block over a LS any day of the week. SBC is definitely not lacking in parts availability and will not be any time soon. They still build new small blocks. Worked on a nearly new 2023 Kohler generator that had a completely aftermarket aluminum headed single turbo 377 cubic inch Gen 1 small block in it not long ago. Mouse chewed on a couple of wires off the crank sensor preventing it from starting.
A little late to the party but I ran/run a 1st gen Holley Dual sync on my 427. I bought a set of ICT Billet truck-coil relocation brackets and some aluminum spacers, and had my buddy TIG the spacers to my valve covers after I tapped them for button head bolts.
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SBC with LS COils & FT550 
