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Forum: OHC-6 TECH 04-18-2023, 09:48 AM
Replies: 14
Views: 1,117
Posted By In_The_Pink
Thanks, Jeff. I had seen the first two listed...

Thanks, Jeff. I had seen the first two listed online, but not the third number, so thanks for confirming.
Forum: OHC-6 TECH 04-17-2023, 07:29 PM
Replies: 14
Views: 1,117
Posted By In_The_Pink
Just discovered the crankshaft in my '68 casting...

Just discovered the crankshaft in my '68 casting date 250 is also 3876802. A quick online search seems to indicate this is a Chevy crank. Is this in fact a correct/original Pontiac part/part number,...
Forum: OHC-6 TECH 04-17-2023, 02:29 PM
Replies: 5
Views: 1,155
Posted By In_The_Pink
Thanks. What was/were the reason(s) a stepped...

Thanks. What was/were the reason(s) a stepped flywheel was used on the OHC 6? I don't think it was mentioned in the SAE paper Jeff scanned and uploaded, so now I'm curious.

Again, I'm not opposed...
Forum: OHC-6 TECH 04-14-2023, 05:56 PM
Replies: 5
Views: 1,155
Posted By In_The_Pink
This looks like a better match, with 166 teeth...

This looks like a better match, with 166 teeth (thanks Jeff H):

https://static.summitracing.com/global/images/prod/xlarge/pio-fw-155_at_xl.jpg
...
Forum: OHC-6 TECH 04-14-2023, 01:43 PM
Replies: 5
Views: 1,155
Posted By In_The_Pink
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...
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