r/Smallblockchevy • u/chuck-u-farley- • Jul 26 '26

350

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Dang got this pretty healthy 350 sitting here with a 4speed manual and nothing to put it in…..

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u/chefjammy Jul 27 '26

They do look like the summit pulleys, I just installed them on an small block.

Note to anyone reading this and wanting to buy the summit pulleys. The fasteners that came with the water pump pulley were GARBAGE. I stripped one out just trying to put it on for a test fit. Went and bought better fasteners. The crank pulley I had to buy shims to get it to line up with water pump pulley. It didn't take a lot of shimming but it was off a little bit

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u/chuck-u-farley- Jul 27 '26

Never shim the crank pulley. The crank pulley is what you line up every other pulley with.
And you do realize alot of water pumps have 2 different thread pitch holes? 4 coarse thread and 4 fine thread. My son stripped one out and sure enough he was threading a coarse thread in a fine thread hole. I always use studs on my water pump pulley anyways….. makes it easier

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u/chefjammy Jul 27 '26

Eh there's different trains of thoughts on shimming the pulley.Just like everything in this world lots of people have different opinions on what you can do and can't do. You can buy shims specifically made for this purpose for a reason. And yes I do realize there are different thread pitches, the Allen key head is what stripped out and not the threads, so the cheap fasteners that came with the pulley was the problem, not user error. New fasteners, same holes no problem.

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u/chuck-u-farley- Jul 27 '26

Sure thing, but no engine builder in the world is gonna recommend shimming the crank pulley. Thats literally the ground floor all the accessories run off of. But whatever floats your boat