Exhaust mani years that will fit my 78 FJ40? (1 Viewer)

Aug 3, 2012
Louisville, KY
Any idea how I can find out what year 2F exhaust manifolds will fit my 78 FJ40?

Switching out the swiss cheese header that is on it.

I have also heard that people machine their intake manifolds down when putting a header on... Is that true? Does anyone know what the flange thickness is on a stock intake manifold. I want to measure mine if necessary so that I know if I need a 'new' intake as well.....

Aug 26, 2009
down in a hole.
if you don't have to smog, find an 80-87 intake/exhaust set complete, have them surface milled together after replacing the heat riser gaskets/plate and the end horn rings and springs...or you can do like I did and get a set of 3FE exhaust headers(factory manifolds) and have them milled to match your intake flange thickness...the 3FE manis are like factory headers only better cause they're beefy as #### cast iron. recommend surfacing the intake prior to match milling the exhausts...oh yeah, you'll either have to fab a y pipe and set of down tubes or run true dual pipes with the 3FE exhaust, but it sound bichin

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