When I did the head gasket on my 7MGTE, I used OEM Toyota head gasket, bolts, and washers. No machine work was done, all I did was clean the surfaces very well and torqued the head bolts in 3 passes to 75 ft/lbs. Car is not stock (bigger turbo, exhaust, etc) and I've had 0 head gasket issues since.
What I'm saying is that I think you'll be fine with OEM parts, as long as you clean the surfaces well, torque the bolts in the proper sequence, and to a more suitable torque spec
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1989 7MGTE R154 Targa Top White Package w/Blue Interior
Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels
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