Jump to content
SAU Community

ARP Head Studs?

Russco

By Russco,
in Engines & Forced Induction

 Share

Recommended Posts

Merli Grand Master

Merli

Posted
Posted

Yep...

It was 12mm on the block side, and 12.7mm into the head if I remember correctly... Had to re-tap the head to fit them...

Link to comment
Share on other sites
wrxhoon Grand Master

wrxhoon

Posted
Posted
Yep...

It was 12mm on the block side, and 12.7mm into the head if I remember correctly... Had to re-tap the head to fit them...

i'm sure you didnt have to re-tap the cil head , i think you'll find out that you had to drill the holes out a little so the bolts fit , as they dont screw in to the head , they screw in the block

Link to comment
Share on other sites
  • 9 months later...
proengines Rising Star

proengines

Posted
Posted
yeah this is right, dont know why but they made them over sized, would like to know the theory behind this, seeing as the part that screws into the block is standard size.....

You might find they are 1/2" unf on the top but taken down to 12mm to screw into the block. I'm 99% sure the SR20 studs also use an imperial thread on the top of them. It saves making a different nut especially for them.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Dose Pipe Sutututu
      CD009 RB Conversion

      By Dose Pipe Sutututu · Posted

      Great info @tidi0x  Will definitely be handy for others and maybe me if I decide to keep the shit box H pattern.
    • tidi0x
      CD009 RB Conversion

      By tidi0x · Posted

      Bumping this up one last time.... I wanted to follow up on the clutch slave issue. I realized that what the issue comes down to is the pocket is flat milled, and the cylinder does not want rest flat. So in order to mount it correctly you will need to make a spacer for the fingers so the cylinder is floating. I took two plates of aluminum, drilled some holes and was good. I did still need to make the relief cuts in the bell housing, as even with the spacer the bleed section still interferes. The OE bell housing the mounting holes are raised from the housing.       
    • robbo_rb180
      R32 Gtst - Track Car

      By robbo_rb180 · Posted

      If the event in USA goes ahead will be interesting as it seems the rules will get more cars over here. Apparently the track is laguna seca too. Yeah s15, if I get a the lower dash trims, centre console and change front cross member to standard LCA position will fit clubsprint. See how rules are as i would rather do complete widebody than a bolt on flare to run the 295 with proper clearance.
    • 180 wanabe
      370gt Stock Suspension

      By 180 wanabe · Posted

      If the car is legal height I can't see it being an issue. Found a thread on reddit that might offer some insight.   I got a ticket from a copper in QLD for my S15 being too low. They had this wheel thing on a stick that they put under the car and it hit my exhaust. Anyhow went to an exhaust shop to get the exhaust tucked up/hung a little higher and I wound the coilovers up a smidge. Don't think I even had to go back to the police station unlike when I got defected for having a carbon bonnet when I brought the S15 from the ACT to QLD and had to replace it and then rock up at a police station and have a yougish female officer who knew nothing about cars confirm that I had changed bonnets. Should have just painted the carbon bonnet yellow to match the rest of the car lol
    • bcozican
      R32 Gtst - Track Car

      By bcozican · Posted

      Id like to race in the US i think alot of those track would suit me   For the s15? Youd be stuck between club sprint and the new Open Am wouldnt you depending on how much interior you have left in
×
×
  • Create New...