Re: torque settings

B

broadjumper

Member
Joinded May,5,2011 First time writer,with a question ! I'm having to replace the flex plate on my caddy-500 which is not the problem ! but does the new bolt up action require a specific torque settings and does the bolts require lock tite (red or blue) I read all or nearly all the posts here and all you are super people & I am very proud to be a member!! Location_ Punta Gorda
 
broadjumper,

I'm a locktight user. I firmly believe in it. I use blue for almost every thing. I hate it when things vibrate apart. As I understand it, Red, is good for things that you will want to use heat to take apart, and Green is for things that you will NEVER want to take apart.

Over the years, Blue has worked very well for me. You'll never find me without a bottle handy.

Duane
 
The GM/Caddy assembly guide lists the torque at 75 ft lbs.
Lock Tite is more of a personal choice. Here, red works for me.
I would go with the factory torque, though.

Deano
 

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I would also recommend the factory torque spec and make sure to use original factory bolts (or better, ARP, etc.). You don't want to use a low grade bolt and torque it over its capacity.
 
If you dont have any lock tite you can use spray paint on the bolts and then torque them down. Little East Texas rigging.
 
Torque Specs and Clearances
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Here you will find all of the recommended clearances and torque specs needed for building most Cadillac 472, 500, 425, and 368 engines. This is not an exhaustive list of every possible combination, just the numbers for the most common stuff. When in doubt, especially if using trick aftermarket parts, use the clearances and torque specs provided with the parts.

Torque Specs
Stock Rods with Stock Bolts: 40 Ft-Lbs
Stock Rods with ARP Bolts: 50 Ft-Lbs (with ARP thread lube)
Aftermarket Rods with ARP Cap Screws: 65 Ft-Lbs (with ARP thread lube)
Aftermarket Rods with ARP 2000 Cap Screws: 75 Ft-Lbs (with ARP thread lube)
Main Bolts: 90 Ft-Lbs
ARP Main Studs (with ARP thread lube): Head Bolts: 115 Ft-Lbs
ARP Head Studs (with ARP thread lube): Intake: 30 Ft-Lbs
Exhaust: 35 Ft-Lbs
Cam Bolts: 25 Ft-Lbs
Rockers: 55 Ft-Lbs
Valve Covers: 10 Ft-Lbs
Flex Plate: 50 Ft-Lbs
 
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