Atomic Competition Fasteners Head/Main Stud kits
Necessity is the Mother of Invention, or so goes the saying, but we didn’t invent head or main studs - they have been around for quite some time, fastening together highly stressed engine components far more efficiently than bolts. All we did was tool up to produce our own high quality chrome moly studs for applications in cases where they were either priced outrageously or were simply unavailable.

A feature of our range of studs is an Allen key drive in the fine threaded end of the stud, allowing easy removal/replacement of the stud in-situ. Not only that, Atomic studs fit! No need to modify sumps or cut down excessively long studs when fitting our stud kits.

All Atomic Competition Fasteners stud kits come complete with detailed installation instructions, molybdenum disulfide EP lubricant, 6 or 12 point nuts and hardened/double ground washers.

And if you have a need for a special stud, we can also make any custom metric or imperial threaded studs up to 20mm diameter and 1200mm long. Call for a quote.



Ford 6 Cylinder

#306651
BA-on Ford DOHC 6 cylinder Head stud kit 12mm

#306652
EB-AU Ford SOHC 6 cylinder Head stud kit 12mm

#306653
BA-on Ford DOHC 6 cylinder Head stud kit 14.3mm

#306654
EB-AU Ford SOHC 6 cylinder Head stud kit 14.3mm

#306670
BA-BF Ford DOHC 6 cylinder Main stud kit 12mm (will also fit SOHC engines when fitted with Atomic girdle)

#306671
FG-on Ford DOHC 6 cylinder Main stud kit 12mm


Nissan RB Series 6 Cylinder

#356650
Nissan RB30 6 cylinder with RB25 or 26 cylinder head stud kit 12.7mm

#356670
Nissan RB30 6 cylinder main stud kit 10mm