Quote:
Originally Posted by Paul Ceasrine
Alan,
The D-Dart engines were assembled at Chrysler Industrial. Though the
Camcraft camshaft is stated as a .495/.505 lift, in actuality it has a lift of .504 Intake / .515 Exhaust....
According to NHRA technical, the intake and exhaust valves on both
the 66' D-Dart and standard 273/235HP Commando engines are the same size. (1.78 intake) and (1.50 exhaust)...The cylinder head chambers were measured at 57.3cc... Currently (5) different casting # heads can be utilized, all with the same valve size, #2455315,,#2658920,,#2843675,,#3671585,,#4323302.. The intake port sizes equal 1.70 sq. inch and the exhaust port 1.25 sq. inch.
Paul
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Paul,
According to an old parts casting book that I have, that Galen put out, the 2658920 cylinder head castings for 1966 had 1.87" intake valves --- P/N 2536176. In 1967, the same castings had 1.78's --- P/N 2806213.
The cars were built on April 17th. The engine ID boss on Politician engine is stamped either R-273- 4-27 or it might be B-273- 4-27. The one on the Mecum car (my old car) was stamped R-273- 4-26 or B-273- 4-26. The bottom portion of the B or R is missing. If the 4-26 and 4-27 are the dates the engines were built. Where, when and who installed them?
Here's a picture that I got from the D/Dart web site moderator. It's of the Porach D/Dart when they first got it. I had asked them about the headers, hurst shifter and possibly a Sun tach being in the trunk at the time of delivery. It's definately an Inland shifter. You can caption it as you want.