Explain wrist pin offset...

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toytron
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Re: Explain wrist pin offset...

Unread post by toytron » Tue Jul 25, 2017 9:39 am

I came from the one that Brad (bbodie) posted earlier in this topic.

Ed Stevenson

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rfw66
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Re: Explain wrist pin offset...

Unread post by rfw66 » Mon Sep 11, 2017 7:53 am

Ed, Not to be a PITA, but the picture you show, originally from Dave Motoheads post in the CorvairCenter Forum, is of an Aries forged piston, not a KB hyperutetic as sold by Corvair Underground!
So the question remains
Anyone have a set of the pistons in question that can measure the offset?


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Bob W
65 Corsa convertible
68 Monza coupe

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thewolfe
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Re: Explain wrist pin offset...

Unread post by thewolfe » Mon Sep 11, 2017 10:22 am

I have a set but they're in my car! They don't slap even when cold like forged pistons will with the added ptw clearance that is necessary for forged pistons. Hypers don't expand as much and can run tighter clearance.
Nate Wolfe
65 corsa 180

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toytron
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Re: Explain wrist pin offset...

Unread post by toytron » Tue Sep 12, 2017 5:33 am

No worries rfw66. I didn't notice the shift in the discussion.

Ed Stevenson


Last edited by toytron on Tue Sep 12, 2017 5:33 am, edited 1 time in total.
Edwin Stevenson
Industrial Electrician
Electronics Technician
65 corvair corsa convertible turbo
65 corvair monza

rfw66
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Location: Oklahoma

Re: Explain wrist pin offset...

Unread post by rfw66 » Tue Sep 12, 2017 6:28 am

Thanks, good to know.
So your experience is that without the offset, these pistons are fine because of the tighter clearances.
Another plus is that you can't put the rods on wrong.


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65 Corsa convertible
68 Monza coupe

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