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Vehicle Info NeededENGINETECHPART NUMBER: 416-ST15621
ST15621 Valve Seat Set for 1963-2007 Chevrolet 2.5L, 3.8L, 4.3L, 4.8L
$1399
Ships on 09/17/2026
Lowest Price GuaranteeGM
Valve Seat Set1963-2007 Chevrolet 2.5L, 3.8L, 4.3L, 4.8L See Fitment Tab for All Applications High Chrome Valve Seats Set of 4
The Enginetech ST15621 is a valve seat set for SEAT (4) 1.313 1.5670 .2188" HIGH CHROME engines. High chrome construction resists wear and seats valves precisely for efficient combustion chamber sealing.
Enginetech ST15621 Valve Seat Set Features:
- Fitment: SEAT (4) 1.313 1.5670 .2188" HIGH CHROME
- Engineered to OE specifications for direct replacement
- Note: Except Exhaust. 1.3125 x 1.5642 x .2188. 45 Deg. Hi-Chrome Cast. With 1.500 - 1.530 valve head diameter. (4 pack). Exhaust. Ex. LPG. Excludes LPG. Exc.
Part TypeValve Spring Seat
BrandENGINETECH
Package Height1.25
Package Width3.25
Package Length5.25
Weight0.25 PG
Part CategoryReplacement Parts
QuantitySet of 4
FitmentSEAT (4) 1.313 1.5670 .2188" HIGH CHROME
MaterialHi-Chrome
Part FitmentDirect Fit
RemanufacturedNo
Outside Diameter1.5660
Seat Angle45
Vendor Part NumberST15621
Package Qty1
Package TypeEA
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