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#1
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OHC 6 Flywheel Questions
Using a '68 OHC 6 as the subject, I see rockauto still lists a new flywheel, LUK LFW131...:
LUK LFW131 Specifications: Flywheel Diameter (IN) 10.969 Flywheel Inner Diameter (IN) 6.406 Number of Teeth 153 https://www.rockauto.com/en/moreinfo...t=5348&jsn=426 As a correct fit for the 4.1L engine, but it also is stated to fit a 5.7L LeMans V8, so, not sure how accurate the rockauto listing is. It's been a while since I priced out a flywheel resurfacing, but it has to be around $50-$60 these days. However, the RA listing for the above LUK flywheel is $68 or so, which makes things much easier to buy and install a new flywheel...if they fit and function the same as an original GM flywheel. Looking at OHC 6 flywheels online, as well as the pic Jeff H added in another topic, the LUK and factory flywheel are visibly quite different, with the LUK flywheel appearing much less "full" if that makes sense-- much less material around the outer perimeter/circumference, just inside the ring gear: Honestly, it doesn't look "right", and using an original and having it resurfaced would be the safe route, but I'm just curious if anyone has used a new flywheel on an OHC 6 and if so, how did it work out? Attached image of original flywheel mentioned above for comparison. |
#2
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This looks like a better match, with 166 teeth (thanks Jeff H):
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#3
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OEM flywheel for OHC-6 has a step in the flywheel surface
which if re machined need 2 surfaces resurfaced. Short cuts are machine it flat.
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Everything comes and goes Pleasure moves on too early And trouble leaves too slow |
#4
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Quote:
Again, I'm not opposed to finding a good used flywheel and having it resurfaced, and very well may end up going that route. I would imagine a stepped flywheel is not very common at all, though, so at least it should be easy to spot. |
#5
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If you find a flywheel that doesnt have the step chances are its been machined flat.
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Everything comes and goes Pleasure moves on too early And trouble leaves too slow |
#6
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I agree, the 67 Manual flywheel had a step in it until I had it resurfaced a couple of months ago. I don't know why the step is there? I also know the original flywheel from my 1978 Sunbird with a 305 sbc also has a step in it. There must be a reason for it.
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Jeff R 60 Jaguar Mark 2, 3.8L Automatic 67 Sprint Firebird 230 OHC-6 4-Speed A/C 78 Catlina Safari, Pontiac 400 powered 77 Astre Formula, 215 Buick V-8 T-5 73 Lemans Safari, 400 4bbl 4-speed 71 Catalina Enforcer, 455 4bbl 06 Mallet Solstice #024 LS2, Now with a Tremec 6060 6-speed! 2012 F-150 Echo Boost (My local Ford Dealer SUX!!!) 2020 Dodge Charger Scat pack (recovered) |
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