Piston Identification
Started by
_shep3305_
, Jan 02 2008 04:48 PM
7 replies to this topic
#1
_shep3305_
_shep3305_
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Posted 02 January 2008 - 04:48 PM
Hi all , Just a quick question .. Just removed the head off my 202 and havent found anything to bad.. The numbers stamped on top of my pistons are : RA 2506 .060 TOP .002 AG.. I presume they are 60tho oversize, but can anyone tell me anything about the RA 2506 TOP .002 AG .. Thanks Shep
#2
liswar2
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Posted 10 February 2025 - 04:00 PM
Any one ?
#3
RallyRed
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Posted 10 February 2025 - 04:13 PM
60 thou over Repco?
Like this...but different.
Like this...but different.
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#4
Bruiser
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Posted 10 February 2025 - 07:01 PM
I think the .002 might be piston to bore finished clearance
#5
S pack
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Posted 10 February 2025 - 09:40 PM
RA 2506 suits VC, VH, VK 3.3ltr commodore and 3.3ltr WB ute, van, 1 tonner
#6
RoyalPlum76SS
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Posted 11 February 2025 - 01:34 AM
Hi all , Just a quick question .. Just removed the head off my 202 and havent found anything to bad.. The numbers stamped on top of my pistons are : RA 2506 .060 TOP .002 AG.. I presume they are 60tho oversize, but can anyone tell me anything about the RA 2506 TOP .002 AG .. Thanks Shep
Ahhhh finally.... after 17 years the original poster can move on with his engine build!
#7
S pack
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Posted 11 February 2025 - 06:51 AM
Ahhhh finally.... after 17 years the original poster can move on with his engine build!
lol, I expect he gave up, chucked the 202 and installed a Turbo Barra instead. 
Edited by S pack, 11 February 2025 - 06:51 AM.
#8
Shiney005
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Posted 11 February 2025 - 12:39 PM
My original Repco L34 pistons had an RA part number stamped into the top too.
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