Ok I got these pistons in my 401 the part number is 1377163 it is a Buick Cast piston... its in a 66 Skylark GS this engine has never been apart... I cant find this number in anything or anywhere...
Yeah, my '66 parts books shows 'piston and pin' numbers, but not 'piston' only. There is a 'HD piston' listed for the '400', maybe that's it. Can you measure the dome height?
Just checked my original 401/'400' pistons.... pn on piston is 1185486. That's not in parts book either. Dome on the first one I checked is 0.373" high.
walt is your parts book 1966 only? the one they supplement every year? in group 9 in a 66 parts book there is a misc section on high performance parts a little birdy told me... the piston number im refering to is the 1396777 11:to 1... if youhave a 66 parts book it should be in there...
Yes, it's a 1966-only book. Dec 1965 edition. Group 9 is heating-air conditioning & body parts. Piston and pin assemblies are in group 0.629 Even my 74 edition (1940-1974) doesn't have your numbers. Like Jason said, your piston shows a casting number. When Buick sells it, it's a piston and pin assembly, so numbers will be different. My Dec 65 edition might not have the mid-year hipo listed anyway....
Yup I know its in 0.629 but my buddy Cal that worked as a parts manager for 35 years said its in the late 66 parts book under misc in group 9...said there were a few pages on it because it was a mid year add on "hipo stuff" ..mine is a 69 book and it wont be in there...your casting number is different than mine so I know its a differnent piston... I'm putting a folder together for Dennis Manner and I want to have it all in order for him...
Ok, my parts book has one page that lists "Special Application Heavy Duty Engine Parts" on that page it lists- Piston & pin- 65-66 400 Eng- Heavy duty 1396799 .024 O/S
I think thats your piston and pin part number. Wierd that its the only 65-66 part listed. My book is a March 1973 printing if it matters.
I was just gonna ask you what year that was......and yes I think that's the puppy... so piston and pin part number would be different than a piston by itself I would presume
