Valve Seats

Pioneer Performance High-Chrome Valve Seats are made from a special alloy for maximum hardness and long-term durability. With leaded fuel about nonexistent, hardened valve seats are a must - especially for older engines that must now run on unleaded fuel.

These four part numbers are for exhaust only and fit the popular G.M. and Ford Cylinder heads.

PACKAGED 4/BOX

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Part #	I.D.	O.D.	Depth	Seat Angle	Counter Bore Size	Price
814004	1.375	1.625	.2187	45°	1.625	16.96
814006	1.3125	1.5625	.2187	45°	1.562	16.20
814010	1.4375	1.6875	.2187	45°	1.687	15.08
814030	1.3125 1.375	1.5625	.250	45°	1.562	17.32

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Parts-Department@RPM-Machine.Com

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RPM Machine-Performance Auto Parts
146 Ea 13065 So Suite F
Draper Utah 84020

We carry parts from scat, je, wiseco, ross, crower, callies, eagle, cat, eagle
Most of our rotating assemblies include forged pistons
and 4340 steelcranks

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