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408 stroker pistons
#845572
11/04/10 12:41 AM
11/04/10 12:41 AM
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Joined: Aug 2003
Posts: 1,145
ontario calif
ns1aar
OP
super stock
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OP
super stock
Joined: Aug 2003
Posts: 1,145
ontario calif
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My sons assembling a 408 stroker.He has some KB pistons with a raised portion on them.CR is 9.5 The machine shop installed them on the rods and told him they are correct.They don't look right to me.The raised portion is at the bottom of the pic which would be closest to the lifter valley
NS1AAR
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Re: 408 stroker pistons
[Re: ns1aar]
#845578
11/04/10 09:29 AM
11/04/10 09:29 AM
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Joined: Feb 2009
Posts: 892
Illinois
StrkrDart69
super stock
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super stock
Joined: Feb 2009
Posts: 892
Illinois
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Quote:
My sons assembling a 408 stroker.He has some KB pistons with a raised portion on them.CR is 9.5 The machine shop installed them on the rods and told him they are correct.They don't look right to me.The raised portion is at the bottom of the pic which would be closest to the lifter valley
The raised area of the piston should be on the top,closest to the lifter valley. Your pic shows them installed correctly.
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Re: 408 stroker pistons
[Re: StrkrDart69]
#845579
11/04/10 11:24 AM
11/04/10 11:24 AM
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Joined: Oct 2003
Posts: 11,688
W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,688
W. Kentucky
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Quote:
Quote:
My sons assembling a 408 stroker.He has some KB pistons with a raised portion on them.CR is 9.5 The machine shop installed them on the rods and told him they are correct.They don't look right to me.The raised portion is at the bottom of the pic which would be closest to the lifter valley
The raised area of the piston should be on the top,closest to the lifter valley. Your pic shows them installed correctly.
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Re: 408 stroker pistons
[Re: justinp61]
#845580
11/04/10 11:33 AM
11/04/10 11:33 AM
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Joined: Jan 2005
Posts: 12,424
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,424
Kalispell Mt.
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They are installed correctly but if they are a closed chamber head they need to come back out and get the raised part milled off or get POS open chamber heads.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 408 stroker pistons
[Re: HotRodDave]
#845581
11/04/10 05:39 PM
11/04/10 05:39 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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Quote:
They are installed correctly but if they are a closed chamber head they need to come back out and get the raised part milled off
that's what I was wondering & dont modern bearings not have the groove to feed oil to the rod squirt hole groove as engineers decided that enough oil was being splashed up there as is ?? but I do remem that the large rod chamfer goes toward the outside crank face not inward to the adjacent rod?? EDIT then I read the subsequent post that they clear w the gasket so how much clearance do they have & what actual CR, what heads/what octane?
Last edited by RapidRobert; 11/04/10 05:52 PM.
live every 24 hour block of time like it's your last day on earth
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