PREMIUM MAIN STUDS

- PROFESSIONAL QUALITY -

Main Studs

  • Studs are required for maximum loading & reduced wear and tear on the block threads.
  • Aircraft quality 8740 chrome moly steel is used to produce premium grade, 
    race quality fasteners right in Milodon's own plant.
  • Ground and thread rolled after heat treat to assure exacting tolerances.
  • 190,000 PSI tensile strength is equal to the most demanding of applications.
  • Kits include 4130 heat treated, parallel ground washers and high strength nuts.
  • The Milodon name is your assurance of quality and a part warranted 100% unbreakable.
  • Sold in complete sets.

- MAIN STUDS -

 Factory 2 Bolt
Main Caps
  Factory 4 Bolt
Main Caps
Milodon Angle Bolt
Main Caps
Milodon
Straight Bolt
Main Caps
SMALL BLOCK CHEVY
SB Chevy  81125  81115  81128  81130 
SB Chevy with Windage Tray 81126  81117  81129  81131 
BIG BLOCK CHEVY
BB Chevy 81138  81135  81133  81140 
BB Chevy with Windage Tray 81139  81137  81134  81141 
FORD
302 81155      81155 
302 with Windage Tray 81156      81156 
351W 81165    81175   
351W with Windage Tray 81166    81164   
351C - 351M - 400 81165    81169   
351C - 351M- 400 with Windage Tray 81168    81170   
390 - 427 - 428CJ 81175       
429 - 460 81188    81188   
429 - 460 with Windage Tray 81189    81189   
CHRYSLER
318 - 340 - 360 81185    81183   
318 - 340 - 360 with Windage Tray 81186    81184   
Mopar Small Block "R3" Race Block 81180       
Mopar Small Block "R3" Race Block w / Tray 81181       
383 - 440 Wedge 81185     81183 
331 - 354 - 392 Early Hemi 81185    81183   
426 Factory Hemi (Center Studs) 81205       
OLDS
400 -425 - 455, 350 Diesel 81215    81175   
400 - 425 - 455, 350 with Windage Tray 81217       
307 - 350 - 403 . 81216       
307 - 350 - 403 with Windage Tray 81218       
PONTIAC
389 - 400 - 455 81221      81222 
389 - 400 - 455 with Windage Tray 81223      81224 
389 - 400 - 455 (Center Studs)   81222    81222 
389 - 400 - 455 (Center Studs) with Tray   81224    81224 
AMC
290 - 304 - 343 - 360 - 390 - 401 V-8 81187       
CADILLAC
472-50 81229       
AUSTRALIAN HOLDEN
253 - 308 V-8 81145    81145   
253 - 308 V-8  with Windage Tray 81146    81146   
6 Cylinder Main Studs 81147       
 

SUGGESTED TORQUE SPECIFICATIONS:
Always clean up block threads with a bottom tap (chasing tap) before installing studs. Install head studs with non-hardening thread sealer and use Loctite on mains. All nuts are torqued using oil as lubricant. Lightly seat studs into block at 10 ft./lbs (hand tight). Then torque nuts as follows:

• 7/16" @ 65 ft./lbs.

• 1/2" @ 85 ft./lbs.

• 9/16" @ 115 ft./lbs.


ENGINE STUD - 4 PACKS
Genuine 190,000 PSI premium race quality engine studs are available in these handy 4 packs to replace either lost or damaged studs. These also provide studs for special applications for which there are no kits available. Bulk, unpackaged studs are available in minimum quantities of 50.
2 3/4" x 7/16" 81250  4" x 7/16" 81254 
3" x 7/16" 81251  4 1/4" x 7/16" 81255 
3 1/4" x 7/16" 81252  4 1/2" x 7/16" 81256 
3 3/4" x 7/16" 81253  4 3/4" x 7/16" 81257 
5" x 7/16" 81258  4" x 1/2" 81275 
5 1/4" x 7/16" 81259  4 3/8" x 1/2" 81276 
6 1/8" x 7/16" 81260  4 5/8" x 1/2" 81277 
6 1/2" x 7/16" 81261  4 3/4" x 1/2" 81278 
6.9" x 7/16" 81262  5" x 1/2" 81279 
7 1/4" x 7/16" 81263  5 3/8" x 1/2" 81280 
2 3/4" x 1/2" 81270  6 1/4" x 1/2" 81281 
3" x 1/2" 81271  6 1/2" x 1/2" 81282 
3 1/4" x 1/2" 81272  7 1/4" x 1/2" 81283 
3 5/8" x 1/2" 81273  8" x 1/2" 81284 
3.8" x 1/2" 81274  8 1/2" x 1/2" 81285 

NUT AND WASHER KITS

Same high quality parts used in Milodon complete
head and main stud kits.


Nut and Washer Kit - 7/16" (10 pieces each)

82100 

Nut and Washer Kit - 1/2" (10 pieces each)

82200 

Washers Only - 7/16" (34 pieces)

82210 

Washers Only - 1/2" (30 pieces)

82215 

Nuts Only - 12 Point, 7/16" (10 pieces)

82230 

Nuts Only 0 12 Point, 1/2" (10 pieces)

82235 

 

#82230