Well I have a '91 Supra, the engine was rebuilt with only 4000 miles on it, and they didn't torque the head bolts down I guess, and it has a 62mm ct-26 on it, with ported polished all that great stuff I got Arp Head bolts for 62.00 shipped on Ebay, guy never used them and sold them, I got my Titan motorsports 1.4mm HG for 130.00 on Ebay as well, just take your time, and you'll find the deals you want.