what size is the nut or bolt - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tim21391 · 06-23-2009, 06:20 PM

what size is the bolt or nut that is on the front of the engine where u can hand crank it so i can get it to true top dead center.. i can barely get fingers in there so...

prostreetC-10 · 06-23-2009, 06:25 PM

Are you talking the crank bolt? I believe 3/4". Listen....you don't have to get it "that" close as long as the dist goes back in the same place.

tim21391 · 06-23-2009, 06:31 PM

oh i didnt know that .. my bad.. but i dont know because i yanked the old one out a few days before and im not sure if somebody turned the key so i was just gonna be safe then sorry

rlb67 · 06-23-2009, 10:27 PM

If it is a small block, it is a 7/16" bolt, fine thread, I think 24 threads per inch. The hex size should be 5/8".

06-23-2009, 06:20 PM	#1
tim21391 Registered User Join Date: Jul 2007 Location: Salina, Kansas Posts: 1,998	what size is the nut or bolt what size is the bolt or nut that is on the front of the engine where u can hand crank it so i can get it to true top dead center.. i can barely get fingers in there so... __________________ 1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796

06-23-2009, 06:25 PM	#2
prostreetC-10 My Carbon Footprint Join Date: Oct 2008 Location: Orygun Posts: 5,527	Re: what size is the nut or bolt Are you talking the crank bolt? I believe 3/4". Listen....you don't have to get it "that" close as long as the dist goes back in the same place. __________________ A quick "pedalfest" *Still getting loose (carb test)* 496 Initial fire up video!

06-23-2009, 06:31 PM	#3
tim21391 Registered User Join Date: Jul 2007 Location: Salina, Kansas Posts: 1,998	Re: what size is the nut or bolt oh i didnt know that .. my bad.. but i dont know because i yanked the old one out a few days before and im not sure if somebody turned the key so i was just gonna be safe then sorry __________________ 1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796

06-23-2009, 10:27 PM	#4
rlb67 Registered User Join Date: Jan 2008 Location: Brighton, TN Posts: 42	Re: what size is the nut or bolt If it is a small block, it is a 7/16" bolt, fine thread, I think 24 threads per inch. The hex size should be 5/8". __________________ Randy, West TN 67 Fleetside SWB L6 3 speed on column 84 Feetside SWB L6 3 speed on column yes, I like column shifts 99 Dodge 4X4 Ext. Cab

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.