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Dynatech 12 point header bolts for any type of heads.
Leave it to Percy to come up with a header bolt that won't come loose when it counts. These bolts have a 3/8" 12-point head for added clearance and once tight, you use a 1/8" hex key to lock in place. They are easy to remove if needed but won't shake loose.
1014001201Under Head Length0.750" (3/4")Thread Pitch3/8"-16Wrench Type12 PointMaterial TypeStainless SteelFinishPolishedSold in QuantitySetNotesWashers included, sold in a set of 12.
For production chassis. Exits under car on Pinto or Mustang IIHigh velocity 1-5/8" to 1-3/4" stepped primary with 3" collectorIncludes gaskets and header bolts
High collar lock washers for header bolts.Use when standard lock washers are too large.Set of twelve.
91013755Overall Length1.000"Centerline of Holes3.100"Collector Diameter2.500" (2 1/2")Flange Thickness0.250" (1/4")Outlet Size2.000"Gasket(s) IncludedYesHardware IncludedYesMaterial TypeStainless SteelFinishNaturalSold in QuantityPairNotesNuts and bolts are steel.
Allen head bolts, perfect for headers or other applications.
These Dynatech Long-Tube Headers have longer primary pipes to produce maximum torque and horsepower. They come with gaskets, bolts, hardware and fit small-block Chevys with angle-plug or straight-plug heads.
S/B Chevy adjustable IMCA headers feature a long primary stepped header, 1-5/8" - 1-3/4" S/B Chevy. 3" collector. One 90 turnout and one 60 turnout. (917-16198H has two 90 turnouts) Standard port.Adjustable length to allow for engine and/or footbox location, as well as power band tuning. Includes gaskets and bolts for headers.