Is this a normal piston?
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Cross-Country
Joined: Jul 2015
Posts: 98
Likes: 3
From: Oregon
Is this a normal piston?
For a Inline 300. Does it look to be standard or higher or lower compression???
I'm thinking of buying a machined block and parts from a guy who no longer wants to use them.
I'm thinking of buying a machined block and parts from a guy who no longer wants to use them.
FTE Legend
Joined: Nov 2015
Posts: 30,828
Likes: 4,094
From: Angier, NC
He did not know what they were?
Did he know who made them or if for a standard or over bore block and by how much?
What is the mark on the top of the piston?
As a WAG I would say stock because of the dish but I am far from an expert
Dave ----
Did he know who made them or if for a standard or over bore block and by how much?
What is the mark on the top of the piston?
As a WAG I would say stock because of the dish but I am far from an expert
Dave ----
FTE Legend
Joined: Nov 2015
Posts: 30,828
Likes: 4,094
From: Angier, NC
Is your block that worn out that it needs to be bored 60 over?
I know some motors when you start getting that much they start to run hot and 60 is the last step before scrapping the block.
Again not an expert but something to keep in mind on 60 over pistons for any motor.
BTW might want to post this same question & picture in the 240 / 300 motor area as I am sure someone there will know like French town flyer as he races the 300 six motor.
Dave ----
I know some motors when you start getting that much they start to run hot and 60 is the last step before scrapping the block.
Again not an expert but something to keep in mind on 60 over pistons for any motor.
BTW might want to post this same question & picture in the 240 / 300 motor area as I am sure someone there will know like French town flyer as he races the 300 six motor.
Dave ----
Fleet Mechanic
Joined: May 2017
Posts: 1,295
Likes: 29
From: Southern CA
.060" over bore on a 240/300 motor usually causes motor to run hot. It also makes the piston bore walls very thin, right on the edge. If you go the .060" overbore be sure to have the piston bore wall in the block sonic tested for thickness before you start rebuilding.
