A website dedicated to 1956 – 1967 Plymouth, Chrysler, and Dodge A-block polyspherical-head engines including the poly 277, 301, 303, 313, 318, and 326. Because LA 273, 318, 340, and 360 were developed from the A-block platform and share many of the same parts and mechanical processes, many of the technical articles are applicable to them as well.

You may access different pages using the top accordion menu including categories for specifications, parts information, engine building series, and other technical articles. I also built in a search function in the menu that lists all applicable pages. The site is a continually evolving project as I add information, write articles, and continue work on my own projects.

Along with information about the poly A-block, I have a section for my A-block 390 stroker 1956 Dodge coupe hot rod build that might interest those with 1955 – 1956 Dodge, Plymouth, and other Forward Look cars.