I didnt seem to have a problem removing the flexplate from my 1pc RMS 305 block. But I just got a motor out of a 75 El Camino, and it has a 2pc RMS 168T Flexplate. So I went to the parts store, and got a 2pc RMS 153T Flexplate.

Got all the bolts out of the flexplate, but there's something holding the flexplate in still by the middle. How do I remove this?

Here's a visual:

 

another view

 

Just a bit tight due to a corrosion around the crank/flywheel. Spray the area with penetrating oil and tap it a few times with a rubber mallot.

 

you were right... I just didnt have enough patience with it

Here's a pic of the new flexplate on (with same old starter... still gotta change that out lol)

Is there a certain torque pattern and ft/lbs I need to torque them to? My manual doesnt say, or I cant find it lol.

 

Tq them down in stages in a star like pattern like you would with a rim ect. I don't remember what the final tq. values should be but I'll crack open a book and grab the #'s if nobody has answered by then.

 

Happened to have my helm manual in my lap while browsing this thread...
Figured you may need a few other torque specs, so here are a few...
assuming it's the same for all SBCs (safe guess.), here it is for an LG4 in '82.

 

60-65 ft lbs on flywheel bolts
torque in cross pattern (like a u would a rim)

 

Just get a starter with a really big pinion gear. That way, it will crank faster, too.

Looks like the project is coming along.

Hopefully, both sets of holes are drilled/tapped for the starter.

 

Thanks for all the info. I ended up tightening them down in a star shape, and tightening them down w/ my breaker bar until I couldnt torque 'em anymore comftorably (by hand, and I'm weak lol). I'll back them off and torque 'em down to 60ish.


Thanks for the kind words Vader I am hoping that it's tapped for both types of starters as well... I'm REAAALLLY hoping it is... dont wanna have to have machine work done to it, hoping to drop n go lol