roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Rover Block Crack
Clan, threads in block are 14 threads per inch. Threads on nut end, are 20 threads per inch. Let's do the math, 20 divided by 14 = 1.42857. In other words, if one were to torque the studs 100 ft/lbs., it would be equal to torqueing the standard 7/16-14 bolt to 143 lbs ! A lot of oem iron blocks would crack ! Doug, can you put a straight edge, on the deck, over the crack, and send us a picture ?
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Re: Rover Block Crack
Thanks for all the input here guys, great discussion. I'm still talking with ARP about the issue. I'll shoot some more photos of the block today and check it with a straight edge.
Can someone do me a favor and send me dimensions of a stock head bolt (overall and thread length)? Thanks! |
DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: Rover Block Crack
The stock torque to yield bolts are 7/16th" x 14 TPI.
They come in two lengths 3.770" and 2.600" with threaded portions at 3.00" and 1.750" respectively. |
Re: Rover Block Crack
I know this thread goes back a couple of years, but I was wondering what the final outcome of it was?
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