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| | | | Joined: Feb 2001 Posts: 1,096 'Bolter | | 'Bolter Joined: Feb 2001 Posts: 1,096 | I have a standard bore 1948 235 . Cast iron pistons .
Can I use standard 1955 > 235 alloy pistons (is the gudgeon height the same) ? | | | | | Joined: Feb 2004 Posts: 29,760 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,760 | Yes, the wrist pin height and diameter is the same for both pistons. A 216 can be bored out .0625" and use 235 pistons, also. It becomes a 224 cubic inch when that is done.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Feb 2001 Posts: 1,096 'Bolter | | 'Bolter Joined: Feb 2001 Posts: 1,096 | Thanks Jerry , just looking to see if I can make the 235 dipper a smoother runner . | | | | | Joined: Feb 2004 Posts: 29,760 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,760 | The lighter weight pistons put a lot less stress on the Babbit bearings, and the engine accelerates quicker since those heavy iron pistons don't have to change directions several times a second. At 2000 RPM, they're starting and stopping 33 times a second!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Feb 2001 Posts: 1,096 'Bolter | | 'Bolter Joined: Feb 2001 Posts: 1,096 | That was my thinking Jerry , although this engine is new , I think swapping the original cast iron pistons for alloy has to be of benefit to the engine life , not that I'm ever going to wear it out (it's taken me over 23 yrs to do just 80,000 miles in this truck . I'm only doing the engine change due to massive cracked block in the original 216 . | | |
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