DollaDanny
New Member
- Joined
- Jul 21, 2017
Are these rolled fillets?
- Thread starter DollaDanny
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- crankshaft rolled fillets
- Joined
- May 26, 2001
Yes, thay are rolled fillets.
A turbo crank will have them on both rod and main journals.
A turbo crank will have them on both rod and main journals.
DollaDanny
New Member
- Joined
- Jul 21, 2017
Thanks, Nick. The casting number on the crank and my research online makes me think it is a N/A crank and it looks cast. As long as it has the rolled fillets, should it be ok to use for a turbo?
No disintegrations
Well-Known Member
- Joined
- Dec 27, 2015
From the pic it seems to need polishing or a regrind.
- Joined
- May 26, 2001
GM had only one part number for the 231 crank, no different number for the turbo Buick crank, but they did have a specific part number for the Turbo Trans Am crank as it was different with cross-drilled oil feed holes.
There were also different casting numbers on V-6 cranks, so that is not an indicator of turbo or non-turbo cranks.
My opinion is that a 30+ year old cast crank, turbo or non-turbo, is not a good basis for building an engine, especially if performance up-grades are to be added to the build.
There were also different casting numbers on V-6 cranks, so that is not an indicator of turbo or non-turbo cranks.
My opinion is that a 30+ year old cast crank, turbo or non-turbo, is not a good basis for building an engine, especially if performance up-grades are to be added to the build.
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