Crank Swap experiment

[My427stang]

None at all, the cork is absolutely the heads right now.

If you could get any professional port work done on those heads it would make a magical change

[TomP]

Or swap the heads for something better.

[66ford]

Hey folks

circling back on this thread on my 410 build, I was planning on reusing the cam I have, but now thinking ill go with a new cam, any suggestions on what i might look for?

The cam i have now is a Crane 272/284 .533/.563

trans is c6 with stick converter and rear gears are 3.70s

Is that cam's lift and duration about the max for stock valve train/springs?

Thanks
Howard

[RJP]

That is the exact cam I run in my 66 Fairlane GTA, C6, with 3.00 gears. The engine is a stock .030" over 390, Silvo-Lite pistons in the 9.6 C/R range, small port C6 heads [IIRC] with 2.09/1.65" SS valves. Intake is a Edel. Streetmaster and a 600 cfm Holley. I'm very happy with the performance, driveability and economy this cam delivers and would not think twice about using this same cam in a similar 390/410 or even a 428 build for street use. 

[chris401]

The Street Master and 3.70:1 gears were my favorite on my 65 F-100 for years. Decent launch and top end for toying around. The vacuum secondary 3310-1 stayed on the longest. Was not concerned with mileage or off line torque for pulling so no opinion there. Pulled the tractor or a few round bails faster than the front end wanted it to go. For a lazy truck that stays within it's GVWR they are a pretty good combonation that work well with a couple of different head and cam combonations.


EDIT: All done with a 3.78 crank. I had an all stock 67 Mercury 410 that didn't last long but had all the above mentions of low end gain. Tried a couple of C6 transmissions and changed converters and adjustments. I really didn't have a lot of experience. By the time I was 19 I left the floor shift 3 speed in there and went.