Rb25det valve clearance.

Discuss the RB20, RB25 and RB26 series engines.
RbDatsun280zx
Posts: 2
Joined: Thu Jul 28, 2016 7:43 pm
Car: Rb25det Datsun 280zx 2+2

Rb25det valve clearance.

Postby RbDatsun280zx » Sat Jul 17, 2021 2:35 pm

Hey everyone I’m building an Rb25det s2 to begin I’m having valve clearance issues. I have 9:1 cp pistons and eagle rods I what I believe is excessive contact the block has been decked .003” and the head is untouched, crank is also stock what could my issue be and would double stacking two 1.8mm Tomei head gaskets be an issue other than lowering compression I plan on running 700 hp thanks for the help.


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