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Just .02. If you don't flow the heads how do you know how to increase the flow numbers? Find someone with a flowbench, flow the heads to get a baseline then make gradual changes.

Wrongo Bongo!!!! All 273's from 1964 to 1969 had steel cranks.

If you can find a set the "F" casting 906 is suppose to be the best flowing stock head. The Super Stock/Stock Eliminator guys are always looking for them.

Stick with the 920's. They out flow and have more port velocity stock than the Swirlport And the e-4 is a really good cam for your combo. You need to put some gear in the butt of that car to realize the potential. ISKY Grind No./Type E-4 SOLID Tremendous torque & good mid-range power...

http://www.seriousviewers.com/D-Dart/ddart.htm

Yes, gotta point there. 318 and the 273 are pretty much the same engine except bore.

Talked with my buddy and the stock replacement forged piston is made by Ross, part# 57989 and figure on paying $700 - $900 for a set. You are going to pay about the same for the Egge cast piston. Is your motor getting tired? If you are lucky you may get away with a clean-up hone in the...

Guy who built my 273 use to race stock eliminator with a 65 Dart GT 4 gear car. There's a lot you can do it';s all boils down to money. What are you going to do with the car?

I personall would like to get a 4:88 setup. I have 4:30's right now and figuring that the motor will probably turn in the 7K area I figure 4:88's would be a good compromise.

I gained 2 MPG in my 07 2500 diesel

My 273 is going to end up with 9.8 CR. Since the car will be street/strip I am hoping that since I had the piston tops thermal coated it may help keep detonation away when using pump gas. Of course I'll be running race fuel at the track.

Mr. Jim Devine turned me onto this. He does all his small block shafts. Sure saves over $200 from the cost of shafts that come with the grooves

I agree. He did this on my 360. Better than spending $200 on new shafts