newb questions about S52 swap

[quillbro]

Where do you get new bolts? Is it a common thread pitch and size? Or is it a special OEM part number? Just asking cuz I'll be assembling a block and head soon

[matt]

I dont think so. Head bolts arent torqued above their yield point afaik.

Wrong. They certainly are.

[madjurgen]

As far as the head bolts, yes you must replace them because they get stretched on install.

I dont think so. Head bolts arent torqued above their yield point afaik.

[Tarn]

As far as the head bolts, yes you must replace them because they get stretched on install. Not to sure on the head matching the s52 so im going to leave that alone.

[Larry e30]

I have an M50TU and plan on swapping that engine out within the next month with an S52. Now with the S52, I only have the block and some other parts, so I'll be using the head from the M50. So do I have to buy new head bolts? I heard not to reuse them, and also should the number one cylinder on the S52 be at top dead center when I put the new head on?

-Larry