Pistons

[wb's87]

Can someone please tell me what size piston will fit a std. block?

 

[pacecarta]

3.800"

 

[earlbrown]

+ what ever wear you have.


and if you have taper (you do) that kinda changes the rules for piston size.

 

[wb's87]

+ what ever wear you have.


and if you have taper (you do) that kinda changes the rules for piston size.

How about 3.75? I have a brand new set of pistons, already assembled with rods rings and bearings for a 2017 5.3 v8. Any chance any of these parts will work? Or should I just sell them to someone doing a LS?

 

[pacecarta]

no chance , the bore starts out at 3.800 and honed for piston side clearance .005 typical ... then theres wear on the bores from use
even if they were the right diameter still no.. theres more to working in a buick than just the diameter ..those are chevy LS pistons ...sell them if you can

 

[wb's87]

no chance , the bore starts out at 3.800 and honed for piston side clearance .005 typical ... then theres wear on the bores from use
even if they were the right diameter still no.. theres more to working in a buick than just the diameter ..those are chevy LS pistons ...sell them if you can

Thanks for the info. I was planning on selling them but thought I would check here.