Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast
Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast
Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast
Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast
Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast
Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast
Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast
Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast
Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast
Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast

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Enginetech ST212538 Intake Valve Seats for 1970-2000 Chevrolet GMC - 1.813 ID x 2.1305 OD x .1875" Thick - 45deg Seat Angle - Hi-Chrome Cast

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$33.25
SKU: BBPT_ST212538
Condition: New
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Description  

The Enginetech ST212538 is a 4-pack of intake-side valve seats engineered as a stock replacement for 1970-2000 Chevrolet, GMC engine applications.

Important Notes

  • Sold as a 4-pack.
  • Application side: Intake valve position - confirm you are replacing the correct side.
  • Seat angle: 45deg - confirm head casting matches specified angle before installation.
  • Hi-chromium cast construction: standard durable alloy for gasoline applications and general valve-job rebuilds.
  • With 2.063 - 2.095 valve head diameter.

Specifications

BrandEnginetech
Part NumberST212538
Product TypeValve Seats
Quantity per Pack4
Inner Diameter1.813"
Outer Diameter2.1305"
Thickness.1875"
Seat Angle45deg
MaterialHi-Chrome Cast
Application SideIntake
Country of OriginUnited States
OEM / Aftermarket Cross ReferencesManley:30590, Elgin:I2125156188, Dynagear:30590, SB International:SB2125-38, Dura-Bond Bearing:31779, General Motors:12350995, Qualcast:20-2125-38

Vehicle Fitment

  • Years: 1970-2000
  • Makes: Chevrolet, GMC
  • Models: Bel Air, Biscayne, Blazer, Brookwood, C10, C10 Pickup, C10 Suburban, C15, C15 Suburban, C15/C1500 Pickup, C15/C1500 Suburban, C1500, C1500 Suburban, C20 Pickup, C20 Suburban, C25, C25 Suburban, C25/C2500 Suburban, C2500, C2500 Suburban, C30, C30 Pickup, C35, C35/C3500 Pickup, C3500, and more

Valve seats are precision-machined rings press-fit or cast into the cylinder head to form the sealing surface between the valve face and the combustion chamber. Over time, exhaust seats erode from hot combustion gases, suffer impact damage from valve float, or lose geometry from repeated valve-grinding operations - any of which leads to lost compression, burnt valves, and rough idle. Installing new valve seats during a head rebuild restores correct seat angle, sealing pressure, and thermal contact between the valve and the cylinder head.

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm, including lead and nickel.

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