| Diagram | CYLINDER AND CRANKSHAFT |
| Subsystem | engine bottom |
| Listed in parts books | Not catalogued by year yet |
Cylinder stud (5/16" British Standard Cycle/Fine × 2-25/32")
Cylinder stud, 5/16 in. BSC/BSF thread by 2-25/32 in. long, for mounting the cylinder block to the crankcase.
This is a cylinder stud, part number 41-0044, sized 5/16 inch British Standard Cycle/Fine thread and running 2-25/32 inches long. It shows up in the CYLINDER AND CRANKSHAFT section of the parts book, which places it right where the cylinder block mounts down onto the crankcase.
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Studs like this hold the cylinder block to the crankcase and give the base nuts something solid to pull against, keeping the joint sealed under compression. Our catalog record ties this one to appearances across 1969 and 1970.
If you're replacing a set, check your existing studs for stretch or thread damage before ordering, and confirm the thread and length against what's actually in your cases since studs in this area can vary by engine generation.
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