ARP crank bolt....what size wrench?

Reply Subscribe

Thread Tools

Search this Thread

Nov 3, 2006 | 06:31 AM

wavrdr

Thread Starter

Launching!

iTrader: (1)

Joined: Sep 2004

Posts: 287

Likes: 0

ARP crank bolt....what size wrench?

Hey guys, I'm trying to turn my motor over by hand but seeing as I have a C5 I'm unable to utilize a socket/ratchet with the steering rack in place.

I can however use a wrench, yet I'm unable to remember the 12 point size needed??

Any help is appreciated!

Nov 3, 2006 | 06:32 AM

slowride

TECH Resident

iTrader: (3)

Joined: May 2006

Posts: 957

Likes: 118

From: New Hartford, IA

Mine is a 27mm I believe.

Nov 3, 2006 | 06:34 AM

wavrdr

Thread Starter

Launching!

iTrader: (1)

Joined: Sep 2004

Posts: 287

Likes: 0

The actual head of the bolt is 27mm huh? I didn't realize it was that big...I thought is was in the 24mm area....

Is it possible for anyone with an F-body to check for me?

TIA!

Nov 3, 2006 | 08:00 AM

01formula6

TECH Enthusiast

iTrader: (7)

Joined: Mar 2004

Posts: 510

Likes: 1

From: Schaumburg, IL

I know for sure I used a 24mm socket when I did my cam swap.

Nov 3, 2006 | 08:49 AM

stealth71

11 Second Club

iTrader: (15)

Joined: May 2005

Posts: 1,337

Likes: 1

From: Orlando

Stock bolt is 24mm so it is probably the same.

Nov 3, 2006 | 09:10 AM

SLED28

FormerVendor

iTrader: (7)

Joined: Jan 2002

Posts: 1,940

Likes: 0

From: Toronto, Canada

Quote:

Originally Posted by wavrdr

Should be 1 1/16 12 point

Nov 3, 2006 | 09:15 AM

pewter 01 SS

TECH Enthusiast

iTrader: (5)

Joined: Jul 2004

Posts: 610

Likes: 0

From: cali

Quote:

Originally Posted by SLED28

Should be 1 1/16 12 point

YUP YUP! +1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

Brett Foote

Nov 3, 2006 | 03:36 PM

JoeyGC5

TECH Addict

iTrader: (24)

Joined: Jun 2003

Posts: 2,645

Likes: 0

From: St Joe, MO

Quote:

Originally Posted by vettenuts

with above, cut 1/4" off the backside of the socket. Get a 19" long piece of flatbar (I like 1/4" thick, 2" wide as its stronger). Then mark 8"on the flat bar and bend to a 45 degree angle. Mark 3" from there and bend in the opposite direction at a 45 degree angle also. Then weld the socket to the edge of one of the 8" long ends, grind edges for clearance and you've got a crank tool.

On the 45 degree angles you can go a little more for extra room.

Nov 3, 2006 | 03:49 PM

#10

slowride

TECH Resident

iTrader: (3)

Joined: May 2006

Posts: 957

Likes: 118

From: New Hartford, IA

1 1/16 and 27mm both work. Just used a box end 27mm for the engine I built. The box end has a slight angle on it that gives you enough contact to turn the engine over, but not for bolt removal/torque. Just curious as to what owning a f body has to do with it

Quote:

Originally Posted by wavrdr

The actual head of the bolt is 27mm huh? I didn't realize it was that big...I thought is was in the 24mm area....

Is it possible for anyone with an F-body to check for me?

TIA!

Nov 3, 2006 | 03:50 PM

#11

Joel_SS

TECH Resident

iTrader: (8)

Joined: Dec 2001

Posts: 905

Likes: 0

From: DFW

Quote:

Originally Posted by SLED28

Should be 1 1/16 12 point

Correct, ARP bolt is not metric. I verified this with ARP when I installed thier crank bolt on my wifes 99 TA

Nov 3, 2006 | 04:14 PM

#12

wavrdr

Thread Starter

Launching!

iTrader: (1)

Joined: Sep 2004

Posts: 287

Likes: 0

I don't believe that the steering shaft is in the way on F-bods whereas the Vette has the steering rack about an inch away thus causing a problem for simply removing bolt or turning the engine over...

Thanks for the help guys!

Nov 3, 2006 | 04:21 PM

#13

96-speed

TECH Enthusiast

iTrader: (19)

Joined: Jan 2002

Posts: 687

Likes: 0

From: Houston, TX

Quote:

Originally Posted by wavrdr

Yup - C5-ers hace to yank the rack to get to the bolt (with a socket).

Nov 3, 2006 | 04:23 PM

#14

exSSer

Launching!

Joined: Feb 2006

Posts: 270

Likes: 0

What about an offset head wrench? I used one on my car with the stock bolt. They're kind of s-shaped. However, I used a 15/16" one on my factory bolt.(same as 24mm)

Nov 3, 2006 | 05:55 PM

#15

hpcubed

Staging Lane

Joined: Feb 2005

Posts: 73

Likes: 0

The ARP bolt sticks out farther than the stock bolt so you can't get to it on a vette. You can turn the stock bolt with a wrench.

Nov 3, 2006 | 06:23 PM

#16

wavrdr

Thread Starter

Launching!

iTrader: (1)

Joined: Sep 2004

Posts: 287

Likes: 0

No worries guys...I pulled the fuel pump relay/fuse and turn the car over...

I had a good feeling that the setup had plenty of room and I was right...

Please do not use this method if you have any thoughts of it being close!

Thanks for the replies though....you guys are the best!