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Mod | | | Forums66 Topics128,091 Posts1,056,034 Members48,433 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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#54658 01/08/2006 3:28 AM | Joined: Jan 2000 Posts: 125 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 125 | Hi all, I'm slowly getting my 261 together, got some nos pistons. My machinist said that the wrist pins were too tight, but he has a different idea on how tight they should be than the manuals I read. Normally I don't mess with fitted pins but these being so old I think they pins tarnised and pistons oxidized making them too tight, had to tap them out. Anywho, he says they should be loose enought that the weight of the pin bouncing should allow it to slide out. Chilton's say's it should be a "two thumb push fit". Shop manual just say's push fit. My thoughts are you don't want it to gall or hang up and you need room for oil in there but thats just my guess. Any advice?
Thanks
Grant
1950 Chevy 3100
1952 GMC 150 (In Pieces)
1968 Chevy K20
1966 Shovelhead
1978 BMW 100S
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