head bolt size
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: head bolt size
No. 7/16-20 is fine thread. For a tap to clean out the threads in the block, you need 7/16-14 which is course thread.
To replace the bolt, a proper head bolt needs to be used.
To replace the bolt, a proper head bolt needs to be used.
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