Main Cap Bolts & Studs-store.440source.com

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Item #

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109-1583

Main Stud Kit - 12 Point - 180,000PSI
When bolts just aren't strong enough, you have to go to main studs. Our main cap stud kit are made from 180,000PSI 8740 steel, the strongest main studs you can buy for the big block Mopar engine. We also inlclude hardened and parallel ground washers, as well as custom 12 point nuts for precision torquing and extra clearance. A great, super strong set for the money.

In Stock

129-1002

Main bolt Kit - 6pt - Titanium Finish
Our main cap bolt kits are the strongest main bolts you can buy for the big block Mopar engine. These are forged from aircraft quality 8740 Chrome Moly steel, and have features like fully rolled threads and generous underhead radius, giving EACH BOLT a capacity of 180,000 pounds per square inch! Parallel ground and hardened washers (shown above) are also included. Coated in a proprietary Titanium finish for good looks and corrosion resistance. For the super important job of holding the crank firmly in the block, these are just the ticket.

In Stock

129-1032

ARP Ultra-Torque Assembly Lube - 1.69oz Tube
Whenever you order bolts, don't forget a tube of ARP assembly lubricant. ARP's new "Ultra-Torque" is a special new blend of PFTE lube which ensures the correct torque will be reached on the first pull, so there is no longer any need to "cycle" the fastener (or loosen and tighten it several times), which has been the case with ARP's regular "Moly Lube" This lube is essential to get correct torque on the head, rod and main bolts, and it doesn't hurt to put it on misc other engine bolts as well. One tube is usually enough to do 4 or 5 complete engines, so it's a good investment to keep around the shop.

In Stock

129-1039

ARP 5.200" Special Main Girdle Stud - ONE PIECE
These are the special ARP 5.200" long main studs designed to be used with aftermarket 1/4" thick main girdle plates. These feature the extra long threads on the top end of the stud to allow for the extra thickness of the girdle plate, shims and hold down nuts. Normally, 8 of these are required for a complete engine, the rear (#5) main cap uses standard length studs since longer studs are impossible to use in this location due to the interference with the rear seal cap. We offer these individually for service replacement purposes with our own girdle kit, or for those who buy the girdle plate elsewhere and need the special studs.

In Stock

109-1587

Main Stud Nut and Washer Kit - 6 Point
We now offer our Main Stud Nut and washer kit. This kit includes 10 of our special 6 point, Fine thread (1/2"-20) Main Stud nuts which feature the molded in circular lower flange to ensure evenly distributed pressure on the main caps and washers. Also includes 10 of our extra thick hardened and parallel ground main stud washers as well. These are the same nuts and washers included in our Main Girdle kits. They also work great with our 129-1039 Girdle Main Studs.

In Stock

138-1023

Permatex Blue Loctite
Use our premium Permatex BLUE Loctite on all applications which need to be held in place, but are still intended to be broken loose from time to time. We always use this on certain parts of the engine which tend to come loose occaisionally due to harmonics, even when they are torqued correctly during assembly. Big Block Mopars are famous for this on torque coverter bolts, rocker arm hardware, cam sprocket bolts, etc. We highly recommend it for those applications. One small tube is usually enough to do one complete engine. Made in the USA!

In Stock

138-1024

Permatex Red Loctite
Use our premium Permatex RED Loctite on all applications which need to be held in place near permanently, and you don't expect to need to break loose. One small tube is usually enough to do one complete engine. Made in the USA!

In Stock

Main Stud Kit - 12 Point - 180,000PSI

In Stock

Main bolt Kit - 6pt - Titanium Finish

In Stock

ARP Ultra-Torque Assembly Lube - 1.69oz Tube

In Stock

ARP 5.200" Special Main Girdle Stud - ONE PIECE

In Stock

Main Stud Nut and Washer Kit - 6 Point

In Stock

Permatex Blue Loctite

In Stock

Permatex Red Loctite

In Stock