Twin engine question
#13
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Joined: Feb 2009
Posts: 8,356
Likes: 1,515
From: NW Michigan
I couldn't help it. I use to always concern myself with "identical" twins but realized their rarely identical anyway. Some cases you can dyno two of the same exact builds and be off 10-15 hp at any given rpm. Have him refresh the ugly ginger and be good to go. Like rookie said it would be a plus to be on the power steering side. I would imagine he will be doing a complete refresh including valvetrain inspection etc. As long as it's out might as well give it a complete bill of health.
Maybe pull its mate mate next season and refresh. Did he mention the hours by chance?
Maybe pull its mate mate next season and refresh. Did he mention the hours by chance?
#14
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Joined: Nov 2005
Posts: 4,554
Likes: 3
From: Fredericksburg, Va
years ago jasper was good..then they turned to crap..and I mean crap,had a engine few years back acted like blew a head gasket, pulled it down to find they had welded the head in the combustion chamber and weld came out ! Talked with jasper and was told they have to use about everything they get back due to availability on cores, stopped used them.
#15
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Joined: Jan 2005
Posts: 3,570
Likes: 127
From: Pasadena, MD
years ago jasper was good..then they turned to crap..and I mean crap,had a engine few years back acted like blew a head gasket, pulled it down to find they had welded the head in the combustion chamber and weld came out ! Talked with jasper and was told they have to use about everything they get back due to availability on cores, stopped used them.
#17
I couldn't help it. I use to always concern myself with "identical" twins but realized their rarely identical anyway. Some cases you can dyno two of the same exact builds and be off 10-15 hp at any given rpm. Have him refresh the ugly ginger and be good to go. Like rookie said it would be a plus to be on the power steering side. I would imagine he will be doing a complete refresh including valvetrain inspection etc. As long as it's out might as well give it a complete bill of health.
Maybe pull its mate mate next season and refresh. Did he mention the hours by chance?
#18
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Joined: Jan 2005
Posts: 4,822
Likes: 376
From: IL
Yep already done that, but unfortunately when you sleeve a cylinder you take the chance of distorting the cylinders next to it and in this case it did ,so That is the reason I’m thinking about boring it so I don’t keep repeating the sleeving process
#19
My 496 MAG was bored .030 over when I had it rebuilt a couple years ago. Otherwise everything put back bone stock. Dyno'd at 390 HP fully dressed with wet stock exhaust. You shouldn't see any difference.



