: Fixing Head Gasket

Collin Taylor
06-05-13, 02:13 AM
I just got a 1999 Cadillac Seville STS. The only problem is that it needs a new Head Gasket. I did some research and found this SureGrip Stud Kit. This kit looks like it could solve the head gasket issue for sure but i will have to find out. If anyone has some advice or tips for me that would be great. http://www.northstarperformance.com/sgstuds.php

06-05-13, 07:19 AM
Either timeserts, or better yet Norm's inserts, are also considered a 'permanant' repair. They can be installed with engine in car if you prefer (many still would rather remove engine from car anyway) whereas studs require engine removal.

06-05-13, 10:37 AM

Yup, as mentioned, inserts work just as well. Choice is yours, but do your homework. A Northstar HG job is not a weekend project (for most people).

06-05-13, 10:48 AM
Definitely get a Factory Service Manual or an Alldata subscription for your car while you complete the repair.

Collin Taylor
06-06-13, 03:27 PM
I am going to use alldata to help me. I also have a garage that i plan to work in so i can take my time and get it right. But i also at school for automotive so i have done several projects prior to this. I also wanted to know if i should drill and tap the holes if the treads are fine to maybe correct a future problem or just replace the gaskets.

06-06-13, 04:09 PM
You ALWAYS drill and re-tap the North Star when replacing the head gaskets, ALWAYS

06-06-13, 06:30 PM

06-07-13, 09:10 AM
.............. X 3.

For starters, and to get some idea of what you're up against, look through

www.carrollcustomcadillac.com (http://www.carrollcustomcadillac.com) - www.huhnsolutions.com (http://www.huhnsolutions.com) - www.northstarperformance.com (http://www.northstarperformance.com)

.......... and, if you use inserts, you ALWAYS use a set of NEW GM head bolts and washers.

Please - please - read the sticky thread ^^^ on Northstar head gasket work just above this thread. You're on a very steep learning curve, and you might just be in over your head. You WILL need a real GM/cadillac service manual to do the job properly - too many special procedures and torque values to fly blind. (I see you are subscribed to Alldata - that's fine.) Do you speak 3 timing chains, tensioner adjustment, timing, and oil pump drive friction ? Hydraulic cam follower buckets and water pump drive pulley removal - from the left bank intake cam ??