Blueberry Posted August 11, 2022 Report Share Posted August 11, 2022 Hey y’all, looking for a head for the L20. I’m getting my second rebuild in 3 years because I guess the previous owner thought putting in a L20B head might be fun ¯\_(ツ)_/¯ Quote Link to comment
]2eDeYe Posted August 13, 2022 Report Share Posted August 13, 2022 Those could both be L20B heads, which one are you looking for? 1 Quote Link to comment
datzenmike Posted August 13, 2022 Report Share Posted August 13, 2022 Top head with round exhaust ports is a W58 used on the '78-'79 620, S10 200sx, A10 HL510 and the 1980 720. The other could be anything but the W58. Look on the spark plug side along the bottom edge between spark plug #1 and #2 for the ID. Probably a U67. Either can be used but best if this head matches the head that was on your L20B. Quote Link to comment
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