BHG replacement, need pointers!

IHateHacks · 01-23-2007, 02:54 PM

"Are there any other parts or things one should buy to make this BHG replacement the most efficient?"

Yes, ARP head bolts are a must. Do NOT reuse the head bolts. Or if you're going to be heavily boosting this motor (like 14 psi), ARP studs.

"What should it be torqued to?"

Factory specs are 58 ft/lbs. ARP bolts recommend 86 ft/lbs. I've heard of people using 90 ft/lbs. Personally, with ARP bolts, I used 70 ft/lbs. Make sure the block threads are perfectly clean and free of liquids. Corrosion will affect torque readings, and liquids don't compress. That is probably the most important thing to clean, with the block and head sealing surfaces a close second.

My only other tip is to have the head magnafluxed and planed at a machine shop.

Good luck, and I would use dealer gaskets only, autozone specials are cheap and made of inferior quality.

01-23-2007, 02:54 PM	#3
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	"Are there any other parts or things one should buy to make this BHG replacement the most efficient?" Yes, ARP head bolts are a must. Do NOT reuse the head bolts. Or if you're going to be heavily boosting this motor (like 14 psi), ARP studs. "What should it be torqued to?" Factory specs are 58 ft/lbs. ARP bolts recommend 86 ft/lbs. I've heard of people using 90 ft/lbs. Personally, with ARP bolts, I used 70 ft/lbs. Make sure the block threads are perfectly clean and free of liquids. Corrosion will affect torque readings, and liquids don't compress. That is probably the most important thing to clean, with the block and head sealing surfaces a close second. My only other tip is to have the head magnafluxed and planed at a machine shop. Good luck, and I would use dealer gaskets only, autozone specials are cheap and made of inferior quality.