Chev Small Block 350 Performance Head Bolt Set - 180,000 Psi Material on 2040-parts.com

SBC CHEVY SMALL BLOCK 5.7 350 PERFORMANCE HEAD BOLT SET / Superior Performance Head Bolts

Heavy duty design, longer than stock, for use with or without head bolt washers.
•180,000 PSI material
•Longer than stock for use with washers (7/16" x .125")
•Improved wrench ability with 1/2" hex head

There are 34 bolts to the set:
16 @ 1.676" under head length
14 @ 3.823" under head length
4 @ 3.10" under head length

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Please read instructions before using.
In certain circumstances engine builders must use a sealer on the bolt threads because the bolts protrude through the water jackets of the cylinder block.  We have found that these substances can act as lubricants and grossly affect the torque-tension values during installation.  In some cases these substances can cause the bolt to experience tensile loads up to or over 18,500 lbs even though the torque wrench shows only 70 foot lbs.
All EngineQuest bolts are furnished with a phosphate and oil finish and NO additional lubrication is required.  However, if sealants are needed, we caution that engine builders to use extreme care in order to avoid inadvertently over-torqueing of the bolts.   Specifically, we recommend lowering the torque value to 55-60 foot lbs. when using a sealant.
CAUTION:  Must check thread engagement when installing on aftermarket cylinder heads.  A minimum of .500” of thread engagement is required.  When used in Big Block Chevrolet Bowtie blocks you must bottom tap all threaded bolt holes.

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