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4pc LS/ LT Cylinder Head Install Alignment Dowel Pin for LS1 LSX LS2 LS3 LQ4 LQ9

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LS & LT Cylinder Head Dowel Pin Set

Replace your rusty or missing dowels before you assemble your long block.

  • These are required when installing cylinder heads on your LS engine block.
  • Compatible with all gen 3,4, & 5 LS/LT series engine
  • Includes: 4 dowel pins - enough to install 2 cylinder heads
  • Stock replacement cylinder head bolts also available for LS engines: PN# 551854-STOCK or 551868-STOCK

More Information

Bullet Point 1 Replace Your Rusty or Missing Dowels Before you Assemble Your Engine
Manufacturer Part Number 551275
UPC 656729842751
Weight 0.250000
ICT Manufacturer ICT Billet
United States United States
Length Inches 1
Width Inches 1
Height Inches 1

WARNING - This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to


ALUMINUM: Most of the aluminum alloys used today contain some level of lead, usually less than .1%. Lead is known to the state of California to cause cancer and reproductive harm. Most aluminum alloys are physiologically inert in their solid form, and the lead is contained within, however user-generated dust and/or fumes may pose a hazard if inhaled or ingested. Heating beyond a certain temperature may also provide avenues for exposure.


STEEL (steel bolts):  Steel is an iron alloy with several metals including Nickel and Chromium. Both Nickel and Chromium are known to the State of California to cause cancer and reproductive harm, respectfully. This warning applies to stainless steels as well.