TIME-SERT 5761E 7/16-14 Big Sert Chevy Big Block Head Bolt Thread Repair Kit

 Time Sert 5761E Big Sert kit, made by Time Sert in the USA. Big Sert means it's "over-sized" for use when a Helicoil or a competitive brand has failed. The 5761E is used in cast iron Chevy big blocks after a Heli Coil has made the hole bigger. It has a larger outside diameter but still accepts the original size 7/16-14 head bolts. If doing a first time repair the oversize kit is not needed, we recommend using the Time Sert 0761D.

Core Drill Bit (Reamer) 37/64"

Counterbore (with pilot assembly) The counter-bore tool is needed to allow the inserts to sit flush as to not interfere with the cylinder head.

Tap - 7/16 Big Sert Tap Guide pn 57655 - for guiding the tooling straight.

Installation Driver - for installing insert by cold rolling threads and expanding the bottom locking it into place.

Includes 5 Inserts Length .60" pn 57611- Big Sert inserts have a larger O.D. compared to regular Time Sert inserts.

Time Sert Thread Locker - Permanent high temperature, oil resistant red thread locker

*Time Sert is the only GM approved method for repairing head bolt threads.

Mouse over the images above for a more detailed view of the kit components. Also notice our bulk discount prices on TIME-SERT replacement inserts for thread repair kits. Need more information on TIME-SERT thread repair kits? Visit our auto repair blog section on thread repair kits for tips, advice and all your thread repair questions answered. Just comment and we will be quick to respond.

See the  TIME-SERT products pdf for more information on thread repair kits and inserts. Some are listed for certain applications on cars, trucks and motorcycles. The pdf is a partial application list so feel free to email or call if we can assist with your particular need. We also accept inquiries regarding our daily TIME-SERT specials. Remember TIME-SERT is recommended by leading car manufacturers like the General Motors Corporation. In fact TIME-SERT is GM's only authorized repair for head bolt threads.