Comments by "mpetersen6" (@mpetersen6) on "Different "Inline Engine" Configurations Explained | [I2 to I8]" video.

  1. The AMC inline 6s were easily killable. Usually the result of willfully neglected maintenance. The engines were actually built tighter than say a Ford inline. Unfortunately the carburation and intakes on the 199, 232, and 258 were tuned towards the economy end of the spectrum. I never understood why they did not go to fuel injection prior to the 4.0. The 4.0 is just begging for some brave soul to cut apart a set of Ford or Chevrolet small block V-8 heads for a cross flow head on the 4.0. The bore center is the same as the Ford Windsor and Cleveland at 4.380". And only .020" less than the Chevy SB and the LS/LT family.
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  2. Also Nash. Straight 8s generally suffer from the tendency of the crankshaft to twist under load.
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  3. Packaging killed the inline six mostly.
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  4. Chryslers Slant Six was nothing more than a normal inline six leaned over at a 30° angle from the vertical. This was done for no other reason than to lower hood lines on the 1961 Valiant (1). And Chrysler was not the only manufacturer to lean an inline over. In my mind a true Slant would be an engine th hat has a horizontal pan rail with the cylinder bores at an angle. Two examples would be the Pontiac Trophy Four and the International fours used in the Scout. The first being 1/2 of a 389 and the other 1/2 of the IH 304 (2). 1) The butt ugliest car ever built in the US. 2) No relation to the AMC 304.
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  5. Ford did a lot of work on inline fives in the 20s and early 30s. Henry Ford was never happy with how they ran. He wanted more power without having to go with a 6 cylinder. Hence the flathead V-8. A lot of US inline 6s pre WWll had only 3 or 4 main bearings. One issue with a 4 main bearing crank is in a fully pressurized oiling system is two of the main bearings have to eupply oil to two rod journals while the front and rear bearing only supply the #1 and #6 rod journals. In a three main bearing crank oiling is dependent on splash oiling.
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