‘67 200 crankshaft bolt size

Rxlawson

Active member
I tried to find the info before starting a new thread, but was finding answers that differ.

Long story short I chewed up the threads in my crankshaft and need to buy a thread chaser, what Is the correct thread size?
 
viewtopic.php?f=1&t=36415&p=264750&hilit=crankshaft+BALANCER+bolt+size#p264750
Stubby":2frcwkn7 said:
I think it is 3/4 x 16.



9/16 bolt with washer and 18 threads per inch, 1-3/4" long shank, 3/4" bolt head

xctasy":2frcwkn7 said:
If you have any questions or need additional information
please contact us at (805) 339-2200 or by FAX at (805) 650-0742.

Quote the bolt Size as 9/16-18 X 1-3/4”, this is not the bolt head, and the early 144 is 55lb-ft bolt toque, and the later 170/200 engines were 85-95lb-ft

From page 25 to 33 of http://www.melvinsclassicfordparts.com/ ... _25-33.pdf
Stock I6's were 9/16-18 X 1-3/4” U$ 4.50 for AMK281.....


Page 28

amk201.jpg




Everything else is 5/8" head with 1-3/4 to 2" shank length

viewtopic.php?f=1&t=73695&p=566494#p566494
xctasy":2frcwkn7 said:
xrwagon":2frcwkn7 said:
.....I'm still a little confused on the ARP bolt. Thanks for info, I will re read and re try to comprehend the written word....

Its simple in French units....Kiwis like them, Azza

The 170-188-200-221/ OZ 250 use a 14.3 mm diameter thick bolt with a 44.45 mm long shank. It's its own design, common from 1963 to 1992 on non cross flow logs, 2V's and X-flows.

Aint anyway similar to the 15.8 mm diameter thick, 221/260/255/289/302/351 Windsors, Boss 302's, FE's or Lima 385

Aint anyway similar to the 15.8 mm diameter thick 302C/351C/351M or 400 Ford.


No way, no how a 15.8 bolt gonna fit in a 14.3 mm hole, it'll bottom out with in a turn of three.


I decided that perhaps I might take the one off my 1972 XA 200 log head engine...

My name is Deano
My occupation
Ive been workin' 20 years at this Gas Shakin Station Down Town.
I like the cars y'know.
Without me they wouldn't go vey far....

I like my Job
I like my Work
But Ford Six makes me seem like such a jerk....








 
I saw that thread and the pages from Melvin’s ford parts, but was unsure which bolt it was only because it said 65 and up was this, but sixes was that.
I broke down and ordered thread repair taps for both sizes, I’ll just return the wrong size.

Thanks for replying

Ryan
 
Its all good. Repair or replace, whatever gets you on the road.

Matt C and Perry via the img user image gallery show historical access to some of the older stuff. Mike W at Classic In lines used to offer an ARP kit, but it might be for the Big Six. The old inventory pictures are of huge help, but you gotta look and then ask some basic questions to help. Some answers don't get you much further ahead, but you're better off askin' away.


See

img/picture.php?/1575/category/43
 
gotta laugh, need a lill humor in my every day
(& members backin up each other w/da correct stuff)
:eek:
 
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