Joined: Fri Oct 28 2005, 12:14PM
Location: Toronto
Posts: 169
Ok guys here is a new one on me. I was talking to a guy last week and he told me that he had a 318 big block, he said that in 1968 or 1969 the 318 came with a big block as well as a small block. Is he just spinning his wheels or was there a big block 318 and what would be the difference in appearance?
Joined: Fri Oct 28 2005, 12:14PM
Location: Toronto
Posts: 169
Thanks that is what I told him, he kept on insisting that there was a big block thanks for the clarification. I once ordered chrome valve covers for my 318 and found out the hard way about the 318 poly.I still have them hanging in my garage.
Joined: Sun Feb 05 2006, 11:51PM
Location: Pa
Posts: 3064
Polysphere engines can be converted to early-style Hemis by using the correct-for-the-model upper end parts ( heads, rocker assemblies, pushrods, head bolts, intake and exhaust manifolds ) and pistons. They are not throwaway motors IMO
Joined: Wed Dec 21 2005, 10:03PM
Location: Vancouver, BC
Posts: 24
The poly 318 block (A block) is hundredths of an inch wider than the wedge 318 (LA block). What makes the A block look wider are the heads with their splayed valves. The wedge LA has the valves all in a row, thus using a narrower head,
And the A block polys cannot be converted to a hemi as Chrysler never offered an A block hemi. The 1950's Dodge, DeSoto and Chrysler hemi engines are completely different engines from the A block, as well as each other.
As stated, the last poly 318 was built in Canada for the 1967 model year. The A block came in various sizes - 277, 301, 303, 313, 318 and 326.
Joined: Mon Oct 31 2005, 12:48PM
Location: Bakersfield, California
Posts: 1755
I agree with Bill. You can take the parts off of the baby hemis and put them on their coinsiding Poly motors, i.e. 331 heads onto a 331 poly, a 315, etc. I ahve never heard of it being done with the A 318.
Perhaps someone here has done it.
As for the first letter in this thread, I love what some people insist they ahve had, or their father etc. I met a guy who told me his Dad had a 60's Mopar with a 440 Murader (spelling?) motor. I told him there was no such thing and that perhaps his father owned a Mercury. Soon after that I just walked away because there was no way, even remotely, this guy could be wrong.
I have also met people who have told me their (fill in the relative!) bought a '70 Chrysler with the Hemi! Can't correct them either.
You know, in 15 years we are going to have snot-lickers thell us their dads bought a '69 Camaro new with a 383 in it. Some of you may know what I am talking about.