Hey there Ranchero folks! So I'm now moving forward with my 351 swap. I'll have a million questions, so thanks in advance to everyone! Let's start with where I am. I have a nearly complete 1989 351W on a stand. Got it free when a housemate moved to New York and abandoned it. I am out of contact with him so I can't ask about the engine condition, but I think it's good because it has a Comp Cams 35-246-3 in it that was installed but never ran (has engine assembly lube on it). Looks like he started to put it together but didn't finish before he had to move for a new job and couldn't take it with him. I have a pair of 1987 truck heads without the rocker arms or their hardware. Springs are on there. Same as the block, no idea of condition, but they do have surface rust that will need to be removed. I have a 4 barrel Edelbrock Performer intake, but no carb. I know I'll need to buy an oil pan, distributor, carb, gasket set, fastener set, pushrods, freeze plugs... and more I'm sure. I'll be pulling as many things as I can from the 289 and slapping them on the 351. Here's where the questions start... Can I use the rocker arms w/hardware from the 289 heads with the cam that's in the 351? The cam has a lift of 0.519" in/0.523" out. How about the return springs? I assume they're stock, so will they be able to handle the lift on the cam? Will the flex plate work? How about the harmonic balancer? Any idea if the exhaust manifold will fit without modification? OK, enough for now!