ARP Head Studs suitable for 1FZ-FE – Boost Your Engine’s Strength with ARP Pro Series Studs
ARP Head studs to Suit 1FZ Landcruiser engine. The design of ARP studs is superior to factory bolts and allows increased clamping force, without having to machine the block for oversize studs.
About ARP studs:
Our ARP Pro Series studs are meticulously crafted to provide unmatched strength and durability for your engine. These studs undergo a cold-forging process that ensures impeccable molecular integrity. Before thread rolling and machining, they undergo heat treatment, boasting an impressive rating of 190,000 PSI.
What sets our Pro Series apart is the option for a 12-point nut, enhancing ease of use and compatibility. Furthermore, every kit includes hardened parallel washers, ensuring an even load distribution and precise torque readings.
Upgrade your engine with ARP Pro Series Studs and experience superior performance and reliability. Trust in the strength of ARP to take your engine to the next level.
Notes on Install:
When winding the studs in on 1FZ, you will notice that they can go too far down into the block, leaving not enough thread for the nut. With the head on, we recommend putting the nut on flush with the top of the stud and then wind it in to correct height before starting torque sequence. That way you get full thread engagement on the nut, plus there’s plenty of thread length in the block.
ARP Provide torque spec instructions in the box.
Very good, fast and answered all my questions