Hi all. I have a mercruiser 181 and am wondering if anyone has a source for an intake, and maybe an exhaust. I'm trying to avoid using the heavy cast factory one.
French Lake Auto Parts made cast exhaust. classicracingpartsoficial out of Brazil has downdraft Weber intake, headers,etc. They are on facebook and instagram. I have not had a need to contact them but saw a link posted on Jalopy journal a while back. Impco makes a propane intake and adapter to a carb but does not look ideal.
It would depend on which head you have. There are at least two eight port heads and possibly a six port. The 153 head fits. There are at least 3 threads on this site that discusses the 4 cylinder GM engine family 153-181. The threads started about the 153 but there is a lot if 181 info as well. A lot of guys end up making this stuff. https://www.jalopyjournal.com/forum/threads/chevy-ii-153-four-cylinder.745583/ https://www.jalopyjournal.com/forum/threads/chevy-ll-4-banger.144835/ https://www.jalopyjournal.com/forum/threads/4-cylinder-mercruiser-engined-cars.994010/ Though these were started about the 153 there is a lot of 181 info too.
The Jalopy Journal
