Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 455 pistons and gaskets
View Single Post
  #2 (permalink)  
Old 01-07-2013, 01:52 AM
cobalt327's Avatar
cobalt327 cobalt327 is offline
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 595 Times in 545 Posts
Quote:
Originally Posted by blakethechop View Post
http://www.summitracing.com/parts/uem-kb347ktm-060

after some advise for my 455 pontiac .has anyone used these pistons they are 0cc to increase compression.also what are some options for thin head gaskets without having to o ring i really appreciate all the help im getting
cheers blake
I've never used those exact pistons, but KB are OK pistons- just pay attention to any recommendations they may have regarding the top ring gap and piston-to-wall clearance.

Also, the -060 is for a 0.060" oversize piston (Summit's catalog listing makes it look like that p/n is for a standard piston). -030 would be a 0.030" over, etc. So be sure to order the right oversize for your engine. The machinist will need to assess the condition of your block to give you his oversize recommendation.

Then you have to order the pistons and give them to the machinist for him to measure before doing the final hone. The type of ring used (plain, moly, etc.) needs to be known as well so the hone finish is correct for the rings being used.
Reply With Quote