In this sale you are purchasing a brand new set of ARP head studs.

These will fit :

Subaru Legacy's 3.0 models from Late 2003 onward + 3.6 models from 2010 onwards. (So Gen 4 and 5) These do not fit the Gen 3 3.0 2000 to 2003 models)

Introducing the new custom head stud for the EZ30R and EZ36 6 cylinder engines. Special design features unique block side seating of the stud (10.50mm thread), polished ARP 2000 material, Allen cap for easy installation, ARP name stamped on the head. Larger diameter than the stock head bolts, uses 7/16NF thread at head. Reduced shank. No machining required for block or heads to install. Kit includes 16 studs, 16 12 point nuts, and 16 .158" thick heat treated washers.

EZ30R cases are designated by the Z30 casting found on the top of the case halves

Does not fit the EZ30D motor with 10mm block side thread. This block is designated by the J30 casting found on the top of the case halves.

If you are unsure of fitment please supply your vehicles registration or chassis number by Ebay messaging. 

You can choose from Two postage options:

Free could take upto 5 days or pay £12.50 for within 48 hours, or pop in and collect from our shop at Barnacre.

If ordered and paid before 3pm Monday to Friday excluding Bank Holidays parts will be despatched same day. If you are purchasing more than one item from our ebay shop, please ask for a new postage quote. Postage quoted is for the UK mainland only but we will dispatch parts worldwide please email for a quote.

Please visit our Ebay shop for other Subaru parts.

Cotcomp was founded in 1988.

We are dealers, stockists and suppliers for EcuTek engine mapping, Cosworthgenuine parts, Forge, Powerflex, Tein, Whiteline, National Autogas lpg conversions and many more.

Cotcomp is based near Garstang in Lancashire and stocks OEM Subaru parts as well as selected aftermarket products, specialising in Road, Race & Rally Subaru engine and transmission, recommending Millers Oils & lubricant.

Cotcomp has been involved in rallying for more than 20 years. As a result Cotcomp staff employ the same attention to detail on customers road cars as on their rally cars.

We can supply performance products for other makes and models.