The 327/300 was a great engine. It was under rated and probably produced probably closer to 325 HP as measured at the time. It was also not cammed up so much as were the higher HP engines and suitable for use with automatic transmissions, power brakes, AC, etc., as a result. No higher HP 327 engines were offered with automatics.
IIRC, the 327/300 was last offered in the Impala in 64. It was replaced with the 327/275, which was similar but with a Rochester quadrajet. I believe it was nearly identical otherwise.
I had a 64 Impala SS hardtop 327/300 4 speed the same palomar red metalic with black interior as the pictured 66. I also had a 64 Impala SS convertible 327/250 powerglide. These were completely different engines. The 300 had 10:1 CR, bigger ports with 1.94 intake valves, forged crank and pistons and a Carter AFB on a cast iron semi hi-rise manifold. It also had bigger exhaust manifolds with 2.5" exhausts. The 250 was an 8.5:1 CR regular fuel engine with cast crank and pistons, 283 heads, Rochester carburetor and smaller exhaust manifolds with 2.25" exhausts.
62-64 Impalas with the 327/300 and 4 speed transmission, if not too heavily burdened with options, would shut down most of the similarly equipped tri power GTOs of the era. I never lost to one.
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
