Description
Cylinder Head Stud Kit
High-tensile head stud kit for the Mitsubishi 4G93 (SOHC & DOHC) — 10 studs rated to 235,000 psi tensile strength, SIRIM-tested.
10 studsHead studs per kit
235,000 psiTensile strength
100 NmTorque capability
SOHC + DOHC4G93 fitment
Overview
A cylinder head stud kit for the Mitsubishi 4G93 (SOHC and DOHC). It replaces the OEM torque-to-yield head bolts with 10 high-tensile studs, nuts and washers that clamp the head to the block with higher, more consistent load for boosted or high-compression builds.
Aimed at turbocharged and high-power 4G93 builds where factory head bolts can stretch and let the head lift under boost. Studs allow accurate, repeatable torque and are reusable, unlike single-use OEM head bolts.
Specifications
Kit typeCylinder head stud kit (studs, nuts, washers + lube)
Studs per kit10 high-tensile studs
Nuts / washers10 nuts + 10 washers
Tensile strength~235,000 psi (SIRIM-tested per dealer listing; some Wilson listings state 220,000 psi / ARP2000-equivalent — confirm)
MaterialChromoly alloy steel, marketed as ARP2000-equivalent; exact grade (e.g. SCM440/4340) not published — confirm
Torque capacityRated to ~100 Nm without issue per manufacturer
Assembly lubeIncludes 1 packet of ARP-type assembly lubricant
Engine applicationMitsubishi 4G93 1.8L, SOHC and DOHC (incl. MIVEC)
Part number— confirm —
What's in the box
- 10 high-tensile studs
- 10 nuts
- 10 washers
- 1 packet assembly lube
Fitment
ApplicationMitsubishi 4G93 (SOHC/DOHC)
InstallClean the bolt holes and threads, lubricate studs and nuts with the supplied lube, then torque in the correct sequence to spec.
Confirm your 4G93 head bolt count and thread size match this kit before ordering — Wilson lists SOHC and DOHC/MIVEC variants.
Best suited for
Turbo builds
High-compression builds
Engine rebuilds
Manufacturer data is limited; the tensile figure (220,000-235,000 psi) is Wilson's own / SIRIM rating, not independently tested here. No exact material grade or part number is published.
Fast dispatchShips in 24–48h
Genuine productAuthentic Wilson Engineering
Easy returns10-day returns, unused items
Fitment helpWe'll confirm before you buy
Shipping & Return
Return Policies
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
– Received the wrong item.
– Item arrived not as expected (ie. damaged packaging).
– Item had defects.
– Over delivery time.
– The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.
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