Proform 66901 Chevy Crank Shaft Turning Socket: a Must-Have for Effective Engine Maintenance Review

I don't usually write reviews, but I really like it. Great quality and works as described. Perfect fit for my "Iron Duke" GM 4 cyl. Crankshaft.

Makes it easy to assemble the SBC on the workbench. No more fiddling with balancing threads or gouging out the crank head with wrenches or large sockets etc. Buy this tool.

So far very happy with this tool, taken care of and no problems at all, it works as it should. This is not strong steel, but softer aluminum.

This head is so weak that it cannot rotate the 4 pistons built into the SBC. I can turn the crank by hand, but the drive is round and cracked. Not recommended when turning more than 30 ft.lbs

It should work and the equipment is good. I read some reviews where customers broke them. They don't use them to build an engine if they break it. It is built strong enough to crank the engine during assembly.

Works as it should and installation is good. I've read some reviews where customers have broken them. They don't use them to rebuild the engine when they break Crank the engine during assembly.

Here comes the black one. never mind Fits like a glove on my 1962 SBC 327 crankshaft. I also made the mistake of engaging the clutch when trying to start the engine. The whole car was moved. I recommend using with heads and compression. no But he could handle a spinning engine and a moving car. So I suspect moving the rotating assembly will not be a problem.

TL DR: Again, this tool should be great for turning a new assembly, but don't expect it to loosen stuck pistons. This head fits very well on the nose of the crankshaft. There is little wiggle room. Just the right amount. This product (and hence the reduction of the star) consists of two parts. The center piece, which may contain a ratchet or breaker (1/2 inch drive piece), is inserted into the main body of the bushing and secured to it with roll pins (one on each side). I think they do it to…