454 vs 502 flywheel
#1
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454 vs 502 flywheel
Is there any difference between the 454 mark IV flywheel and the 502 gen 6 flywheel? As far as I know the 454 and 502 flywheels are the same, but I'm not sure if they interchange between the mark IV and gen 6. I know they bolt up, but is the balancing aspect of it the same?
Thanks,
Frank
Thanks,
Frank
#4
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Just because its a mag make no difference at all. Yes a MarkIV 454 and 502 are interchangeable.
The Mark IV is a two piece seal and the gen 6 is a one piece.
I just made the mistake when I bought a gen 6flywheel for a MarkIV. I ended up throwing it in the scrap bucket and I just machined a 400 flywheel for a 454 MarkIV. The counter weights had to milled off.
The Mark IV is a two piece seal and the gen 6 is a one piece.
I just made the mistake when I bought a gen 6flywheel for a MarkIV. I ended up throwing it in the scrap bucket and I just machined a 400 flywheel for a 454 MarkIV. The counter weights had to milled off.
Last edited by 1BIGJIM; 11-27-2007 at 12:45 PM.
#9
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Steel cranks and cast cranks are the same for Mark IV engines.
Yes they are both be external balance.
The 396, 402 and 427 where internal balanced engines.
I assumed you where going to have the flywheel balanced with the rest of the engine components? Or do you plan to just replace the one you currently have?
Is there any difference between the 454 mark IV flywheel and the 502 gen 6 flywheel?
I just reread your original post. Are you asking if a Gen 6 flywheel will fit on a MarkIV? If so, NO it will not work without machine work. The had additional weight added when they went to the one piece seal.
Hope this clears things up.
Yes they are both be external balance.
The 396, 402 and 427 where internal balanced engines.
I assumed you where going to have the flywheel balanced with the rest of the engine components? Or do you plan to just replace the one you currently have?
Is there any difference between the 454 mark IV flywheel and the 502 gen 6 flywheel?
I just reread your original post. Are you asking if a Gen 6 flywheel will fit on a MarkIV? If so, NO it will not work without machine work. The had additional weight added when they went to the one piece seal.
Hope this clears things up.
Last edited by 1BIGJIM; 11-27-2007 at 07:05 PM.
#10
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Join Date: Jul 2006
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I can't put my hands on my Dennis Moore Book but here is a link I found........
http://www.offshoreonly.com/forums/s...+454+Flywheels
http://www.offshoreonly.com/forums/s...+454+Flywheels