Keep blowing headgasket on N/A 1uzfe

The 1UZFE EGR Delete Kit is available for sale here.

dweinhart

Member
Messages
110
Location
Az
Having trouble sealing MLS head gasket using Apex MLS and Victor Reinz bolts. I am rebuilding 2nd 1uz for boost using ARP and Cometic MLS. My mechanic can not figure out why Apex MLS blew on start up BEFORE boost. Milled head and block. Has anyone had problems sealing MLS gaskets? Should I be using copper spray? If the machine shop didn't have proper RA, would that cause the problem? (small town machine shop- probably doesn't know what RA is)
 

Zuffen

Super Moderator
Staff member
Messages
5,533
Location
Sydney, Australia
I lifted the heads on my engine with MLS gaskets but it was running 21psi and a poor tune.

Rebuilt the engine and didn't re-machine heads and it ran until sold without any problems/

I used ARP studs.
 


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