My Block Ruined? (Head studs gone bad) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Ichiban4 · 12-05-2013, 01:18 PM

I am having a shop do all the work. For anyone in the future they are charging me $250 to drill and tap. They said they have done 1/2" in a couple Sr's before so I felt comfortable with them.

As far as the sizing and engineering aspect I know nothing about so I can't say much other than this kit was designed for the SR by Mazworx and ARP to withstand extreme boost on their high HP cars so I have complete confidence that it is a reliable choice for my car. Torque spec on these from Mazworx is 95ft. lbs so it is very similar to what the SR head usually gets. Also with about double the threads available in the block after tapping that alone will help with a lot of issues.

I will update again when it goes together hopefully this weekend.

12-05-2013, 01:18 PM	#23
Ichiban4 Zilvia Junkie Join Date: Apr 2011 Location: Denver / Kanagawa Posts: 371 Trader Rating: (4) Feedback Score: 4 reviews	I am having a shop do all the work. For anyone in the future they are charging me $250 to drill and tap. They said they have done 1/2" in a couple Sr's before so I felt comfortable with them. As far as the sizing and engineering aspect I know nothing about so I can't say much other than this kit was designed for the SR by Mazworx and ARP to withstand extreme boost on their high HP cars so I have complete confidence that it is a reliable choice for my car. Torque spec on these from Mazworx is 95ft. lbs so it is very similar to what the SR head usually gets. Also with about double the threads available in the block after tapping that alone will help with a lot of issues. I will update again when it goes together hopefully this weekend. __________________ ☆ Panda Pirates ☆