lance Posted April 5, 2012 Report Share Posted April 5, 2012 complete rebuild but found out that 1.8 head doesnt work on 2.0 liter block , should of known just fixed it reacently btw thats not me in the pick Quote Link to comment
datsunaholic Posted April 5, 2012 Report Share Posted April 5, 2012 complete rebuild but found out that 1.8 head doesnt work on 2.0 liter block Not true. Just slightly smaller exhaust valves and intake ports. I have a L18 head (W53) on my L20B and it runs great. Better low end torque. Might not be good at high (5500+) RPMs, but I never go there anyway. The pic shows what looks like an early L16 head. The bigger issue is the '78-80 exhaust manifold won't seal properly to an earlier head due to port shape. But the pic shows an L18 exhaust manifold. Quote Link to comment
]2eDeYe Posted April 5, 2012 Report Share Posted April 5, 2012 L18 head should work just fine on an L20b. :confused: Welcome, engine bay looks fantastic :D Quote Link to comment
lance Posted April 12, 2012 Author Report Share Posted April 12, 2012 in the pics that is L18 head, couldnt get the timing right when i put a L20 on it runs awesome now. Starts awesome runs awesome and gas mileage is much better. with that L18 head there was no power and warming it up was a challenge wouldnt idle unless it was warm, how long have you had the L18 on the L20? Mine got progressivly worse over a year Quote Link to comment
Z-train Posted April 12, 2012 Report Share Posted April 12, 2012 in the pics that is L18 head, couldnt get the timing right when i put a L20 on it runs awesome now. Starts awesome runs awesome and gas mileage is much better. with that L18 head there was no power and warming it up was a challenge wouldnt idle unless it was warm, how long have you had the L18 on the L20? Mine got progressivly worse over a year Something was wrong with the L-18 head.No difference between them except valve,port & runner size Quote Link to comment
lance Posted April 14, 2012 Author Report Share Posted April 14, 2012 yea thats possible Quote Link to comment
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