Rob The 1967 - 1970 saying at the time was the Plymouths and Dodges used for police work, were nothing more than four door Road Runners or GTX's with a rear axle ratio that was one notch taller. The Road Runners or the such may take the qtr mile and the cop would be at the mile waiting. Persuit cop cars at that era had 3:23's, dual snorkles and dual exhaust. In the above form the engine was either the 361, 383 or the 413 in the early 60's and then either the 383 or the 440. You mentioned that some Camaros and others were used. Please bare with me as I type out this quote from the first time Camaros were tested by Calif for police work in 1979. ... The Camaro Z28 was an entirely different story. The heat of the El Centro, the continous high speeds around Bakersfield, and the mountain grades around Redding, took a heavy toll. Of the twelve Z28 test cars, nine had to have the engine replaced altogether. Five of the engines were over-hauled due to piston or main bearing failure at least once before being replaced by a different engine. Only the three Z28's driven in the urban Los Angeles traffic did not need new engines. The Camaros logged the most down time at 52 hours per month and of course the highest operating cost at 48 cents per mile. CHP mechanics were not fond of the Z28, Cited in Police Produce News they said: "GM has a long way to go before they can market a high speed machine that can match the endurance of the old Dodge gunboat." The above is from a book called Police Cars, page 32. While on the subject of cop cars take a peak at this site: http://www.copcar.com/month.htm Either way our Imperials used the same ideal to beat out the Caddy's or Linclon's. Rodger & Gabby Colo Spgs '47 De Soto Custom w/Fluid Drive & passenger door mounted swamp cooler '63 Le Baron w/F-Sweep trunk lid & std A/C '66 Le Baron w/dual A/C & reverbed AM/FM '70 Overlander - InterNational Dbl '77 D150 w/360, NP 4 Spd, 12 Bolt Axle, OEM Buckets & etc ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm