67 Delmont 88 425 flywheel - ClassicOldsmobile.com

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Old December 6th, 2017, 09:19 PM   #1
golden rocket
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67 Delmont 88 425 flywheel

having big time grief trying to find a flywheel or ring gear for my Olds. Has the 425 c.i. engine w/ turbo 400 behind it. appears to be stress cracks in flywheel, and takes multiple tries to find good place on flywheel to start. The 330, 400, 425, and maybe 455 should be about the same. Looking online, all the flywheels are for manual transmission.

Anybody have any ideas on where to get a flywheel, teeth on Bendix are good, as that is what I had originally suspected. rotated flywheel through starter engagement hole, lots of worn teeth.

thanks for any info/ help. mike
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Old December 6th, 2017, 10:29 PM   #2
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Try searching for a flex plate instead of a flywheel. A flywheel is for a manual transmission whereas a flex plate is for an automatic transmission. Also, the 455 flex plate will not work with the 425 - you need one for a 330, 425, or early 400 engine, all of which are 1967 or older. The 1968 and newer flex plates have a different bolt pattern and will not work.
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Old December 7th, 2017, 07:55 AM   #3
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Any 1964-1967 Olds flexplate works - they are all the same. The 64-67 motors cover the 330, B-block and E-block (short stroke) 400, and the 425. A 455 flexplate will NOT bolt up, nor will any 1968-1990 flexplate. You can buy a brand new SFI flexplate from Jegs or Summit for about $130. Speedmaster P/N 1-226-004 has both early and late bolt patterns and a balance weight that can be moved to the position appropriate for each application.
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Old December 7th, 2017, 08:10 AM   #4
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I have this one if you want. No cracks and the teeth are in great shape.
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Old December 8th, 2017, 04:04 PM   #5
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I have one in Albuquerque if you are still looking, $75 includes shipping.
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