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Re: Valve Cover Bolt Hole Location Variations [Re: markz528] #2860106
12/14/20 11:44 PM
12/14/20 11:44 PM
Joined: Jan 2003
Posts: 6,151
Melbourne , Australia
LA360 Offline
master
LA360  Offline
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Joined: Jan 2003
Posts: 6,151
Melbourne , Australia
It's been ages since I made the billet valve covers, the first set I made are on a friends engine that is starting to go back together now. I will see him on the weekend, so I will check then. Based on what you've said Mark, I will be adjusting my CAD model. I might get back to making some more valve covers down the track.

Cheers


Alan Jones
Re: Valve Cover Bolt Hole Location Variations [Re: AndyF] #2860165
12/15/20 05:31 AM
12/15/20 05:31 AM
Joined: May 2003
Posts: 13,202
aZLiViN
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J_BODY Offline
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Originally Posted by AndyF
Call Russ and ask him why the bolt holes are in the wrong spot. After he yells at you for 20 minutes and tells you how dumb you are and how dumb your mother is you'll forget what the question is and hang up.


Sounds like my one and only phone call with Herb McCandless in my youth laugh2

Re: Valve Cover Bolt Hole Location Variations [Re: AndyF] #2860186
12/15/20 09:06 AM
12/15/20 09:06 AM
Joined: Apr 2003
Posts: 1,628
anywhere@ anytime
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actionange Offline
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Don’t think Russ is there anymore

Re: Valve Cover Bolt Hole Location Variations [Re: markz528] #2860198
12/15/20 09:30 AM
12/15/20 09:30 AM
Joined: Jan 2003
Posts: 16,934
NC
440Jim Offline
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Posts: 16,934
NC
Originally Posted by markz528

I machined my B1 adapters to the number Scott Koffel gave me. I think I wanted to locate these tightly (I get too anal sometimes) and made the 4 inner holes .260" and the outer ones .270". The adapters fit well. So I guess the numbers I received are correct.
With those tight drill diameters and them fitting well, that is the tie breaker for me. I am going with 0.325" offset for the B1's.
Even though 0.315 and 0.281" dia holes should fit too.


1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1
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